NASA Johnson Space Center Oral History
Project
Edited Oral History Transcript
Hector Garcia
Interviewed by Rebecca Wright
Houston, Texas – 10 March 2010
Wright: Today is
March 10th, 2010. This oral history interview is being conducted with
Hector Garcia for the Johnson Space Center Oral History Project. Interviewer
is Rebecca Wright, assisted by Sandra Johnson. The interview is being
conducted in Houston, Texas. We thank you for coming in today and visiting
with us. We’d like to begin by you sharing with us how you became
involved with the space agency.
Garcia: I guess
I can go back when I was a little kid. I grew up in The Valley [Rio
Grande Valley] down in McAllen [Texas] and Pharr [Texas] during the
40’s and 50’s. We used to pick cotton in the summer. All
the kids got together and we had a truckful of kids. That’s what
we did in the summer when we were 12, 13 years old. [We used the money
to buy clothes for school.] We’d go out there, and we had those
sacks that we dragged around. They were kind of heavy [when they were
full of cotton]. You’re by yourself really, so I just thought
about space. I even was thinking of writing a story of going to the
Moon at that time. I grew up during the war [WWII]. The toys we had
were planes and tanks. I wanted to be a pilot, because we always played
with tanks [and I wanted something else], but I had bad eyesight. [I
had cut my left eye playing with a red wagon as a child.] So I knew
I couldn’t do that.
Then I said, maybe I can be an engineer, or make the Army my profession.
Those two things, when I was little, that’s what I [wanted to]
do. While we picked cotton, we also had hurricanes that would come sometimes.
So I got interested in the weather when I was little. I remember one
time we were out there and a hurricane was coming. There were some waves
[wind and rain] that would come in, [but] they kept us out there until
it was about to pour on us, because they wanted to pick all the cotton.
Then they [finally] herded us over to a barn. I watched the wind [increase
in speed], and I said well, wonder how all that works? So I got interested
in the weather. Then I said, maybe I’ll be a weatherman.
Eventually I became a migrant worker when I was 14, 15, 16. We used
to miss the first part of the school year [about six weeks], but I would
always catch up. I caught up so much that I [graduated] third highest
[out of 142] in the graduating class. I was the high science and math
[student]. The only thing, back then they didn’t give scholarships
[to Mexican Americans]. They did offer me a Bausch & Lomb Scholarship
in Rochester, New York [that I earned by being the top science and math
student], but I didn’t have the money to go over there [and compete
for a four-year scholarship]. So I went to Pan American College. It
was a college. It wasn’t with the University of Texas [Austin,
Texas] yet. So I went there two years. I did work as a [summer] co-op
with the Texas Highway Department. It wasn’t TxDOT [Texas Department
of Transportation] yet. It was Texas Highway Department. I became an
engineering aide at the Texas Highway Department.
About that time, I got serious with my high school girlfriend. We made
plans to get married. I was already registered [at UT Austin], and I
was going to transfer to the University of Texas. Well, I ran out of
money. At the Texas Highway Department they allowed me to work the semester,
stay out of school and work the semester, but I got drafted [during]
that time. The GI Bill [of Rights] was not in force. That was a period
when the GI Bill was not in force, so that was a double whammy on me
there. [I did not get any school benefits.]
Anyway, I got drafted. I wound up in the Pentagon with the Office of
the Army Assistant Chief of Staff for Intelligence [ACSI]. The reason
for that is that all through the [Army intelligence and physical] tests
I made the highest grade, all through [basic training]. So I wound up
getting a top secret clearance, and more than that, because I got CIA
[Central Intelligence Agency], SEATO [Southeast Asia Treaty Organization],
CENTO [Central Treaty Organization] and all others [except what the
President had]. At the time they called that Cosmic [Top Secret (CTS)
– highest North Atlantic Treaty Organization (NATO) security clearance].
I handled all the cablegrams and messages from all over the world [from
our intelligence operatives]. That’s what I did when I was in
the Army. [Around] that time, my wife and I did get married, and we
wound up [living] in Arlington, Virginia, right across from Washington
[D.C.]. [We rented a house because I did not like apartments.]
I was still interested in getting back to school. I was interested in
the space program more than before. I said, “That’s what
I want to do.” So when I was in the Pentagon I started learning
Russian, but then I stopped, and that was a big mistake. I should have
kept on learning Russian, because of the later [NASA] flights with the
Russians. The day that my wife was at the doctor, Alan [B.] Shepard’s
flight went up. I remember, I told my wife, “That’s the
first [manned] suborbital flight [MR-3 in May 1961].”
Later that week we happened to be in town. We had gone out to eat, and
we were coming back. We crossed the [Arlington Memorial Bridge]. There
[were] a lot of police cars. We were the last ones that [were allowed
to get] on the bridge going across to the Virginia side. Who comes across?
It was Alan Shepard in a convertible with an entourage of cars. I don’t
know who else was in there [with him]. I told my wife, “Here comes
Alan Shepard.” So it was funny that it happened that way.
Anyway eventually I got out of the Army and enrolled in the University
of Texas. [The Army offered me a commission to stay but I turned that
offer down.] I took the aerospace engineering courses. One of the courses
that we had was Astronautical Guidance by Richard Battin. We had other
more aircraft [related courses], but we did have that one [space-related]
course. That was the main [space-related] course that we had. There
weren’t that many back then, they were just starting. So I was
lucky to have gotten that course. It was very interesting [that] I had
taken calculus before, but I actually learned calculus in that course.
At the end, when I graduated, the recruiters came over. I graduated
in January ’65. Back then you had to suffer through Christmas
and New Year’s holidays and then take the finals, which was bad.
I don’t remember the [NASA] recruiter, but they interviewed me,
and then about a week later I got a letter that they were going to hire
me.
So my wife and I came over. We had some friends here in Houston we stayed
with. I went down to JSC [MSC (Manned Spacecraft Center) back then].
I did not like the job that I was offered, because it was going to be
on a recovery ship. They told me the one that I was going to be on was
going to be in the Pacific [Ocean]. I didn’t want to leave my
wife alone. We already had one child, and my wife was expecting another
one. I was not going to leave her alone, so I turned down the job. They
said, “Well, we’ll send you around.” So I went all
over. I went to the Engineering Directorate and interviewed there, then
there they told me, “Well, go to MPAD [Mission Planning and Analysis
Division]. They’re hiring over there.” I went over and interviewed
with Charlie [Charles C.] Allen in the Flight Analysis Branch. He told
me what they did. I told him that I wanted to be in operations. I wanted
to have both the technical and operations. He said okay. Of course when
I told my wife that I turned down the [first] job [offer] she said,
“Why did you do that?”
I said, “That’s going to send me out there on a ship, and
I’m not going to do that. I’m not going to go out there
and spend weeks and weeks and then maybe the flight gets [scrubbed],
and you stay out there.” So I said no. We went back [to Austin]
and I finished my finals. We had just about a week before we had to
get out of our student housing. We were still waiting.
Finally I got a letter. They offered me a job [with MPAD]. I had other
offers because of my grades, but I didn’t want to work anywhere
else but at NASA. Of course the pay was also a lot less at NASA, but
I told my wife, “That’s where I want to work.”
LTV, Ling-Temco-Vought, in Dallas [Texas] had offered me a job, almost
$2,000 more per year. Back then it was $6,800 or $7,200 a year. They
had offered me $9,200, plus other amenities, and I was going to be close
to my sister. I had two sisters and a brother in Dallas. I still turned
it down because I wanted to work at NASA. I came to work on my birthday,
February 1st, 1965. They knew that I was one of the first aerospace
engineers, because there weren’t that many with that [degree].
They were just mechanical, electrical engineers, even civil. So they
said, “Well, we got the right job for you.” Normally, they
told me, they would put somebody that I would work with, but they didn’t
do it. They just gave me a project.
The project was the backup entry [computer program] for Gemini [spacecraft].
It wasn’t working [properly]. I think GT-1 and 2 had already gone
off. GT-1 was I guess because they were trying to check out the structure
[and launch vehicle systems], then GT-2 I think was the launch systems
[and spacecraft systems], then GT-3 was the first manned. It was a three-orbit
mission. So we were coming up on that. They were having problems with
the [backup] entry program. The RTCC [Real-Time Computer Complex] was
having problems also I was told. They gave me the backup program. It
took me one day and I got it to work.
Wright: That had
to be rewarding.
Garcia: Yes. The
problem was there were some burns that they would do, burns so that
in case the retrofire system didn’t work you would do this OAMS
[Orbital Attitude Maneuvering System] burn with the OAMS engines, the
[small] reaction rockets, that would lower the perigee down so it would
[aerodynamically] catch the vehicle and eventually it would come down
in a day or two [without a retrofire burn. One of the burns was being
taken out of the program.]
They had contractors; I don’t know whether it was McDonnell [Corporation].
One of those contractors was going to charge them thousands of dollars
[I was told]. It would take them six months to fix the program. So I
looked at it. The problem with the program was that it had parameters
that had to go from one phase to another phase. [They] had to be carried
over, the parameters, because there was no [easy] way that you could
take a burn [phase] out without causing a problem. So I looked at it.
In about an hour or two I said the only way we can do it is to minimize
the burn by like a split second of the burn, which doesn’t do
anything to the trajectory in the simulation. Then everything gets passed
over [to the next phase]. I tried it and it worked. That’s the
way the backup program was until we ended the Gemini project.
Wright: Amazing.
What a great way to start.
Garcia: I did that.
Finally one of the persons I worked with was Larry [D.] Davis. He had
been there maybe three or four months [before I started]. We worked
together on a lot of projects. We actually did work one flight, I think
it was Gemini X. We [helped] design the trajectory and all the maneuvers.
We [the Flight Analysis Branch] would get the requirements and then
we would design the trajectory.
Going back to the ACR [Auxiliary Computing Room], I liked that because
I liked operations. When they came up with a team, of course I volunteered
to be on operations. We wound up working in the ACR. Like I said, they
don’t give us justice on what they wrote there [the Roundup].
We did a lot more important things [than what they discussed in the
article].
Wright: The ACR
is, according to the information you gave us, on the third floor of
the Mission Control Center [MCC]. Tell me how it all happened and how
you were involved in that.
Garcia: There was
a computer room next to this room [located on the third floor of Building
30 opposite the MCC]. People called it the hidden room because they
didn’t want anybody to know that it was there and what went on
in there [I was told]. I think in the beginning, GT-3, they had a guard
outside our door [going] into [the] ACR. Only people that were supposed
to work [the flight] would go in there.
Anyway, this computer was the old 7094. It was an IBM 7094 computer,
the ones that had all the little lights [on the console] and the tape
machines were on the walls and the printers were on the side. When we
got our programs to work, like the rendezvous people, we [created] boxes
of cards. We would load those up onto big computer tapes, but we left
spaces in there where we would update with the [computer] cards. I don’t
know if that [the Space News Roundup picture] shows it, but on another
picture we had a teletype machine. That’s how we would get our
vectors, the position [and] velocity. They would come over, and we’d
read them. We had a keypunch person. They were girls—that’s
another thing. There weren’t that many female engineers, in fact,
only one or two when we came. Of course there weren’t [many] Mexican
American engineers either.
We would call out the vector. The keypunch person would punch the card,
then we’d run into the computer room and there was a card reader,
a machine that would read the cards. He [the computer operator] would
run the program. At a certain point it would stop, then you’d
put in the cards. They would put in the information into the computer.
The program would keep on going.
So I [set up the backup] entry program, the Gemini entry program. I
had several boxes of cards. I loaded those up [onto tapes], then I wound
up with a little pack of cards for the real-time. I’m not completely
sure, but on GT-3, [I was told] we were checking out the RTCC programs.
What I heard is that most of our information went onto the spacecraft,
because they hadn’t checked out the RTCC. Besides, it took so
long to update the RTCC—they needed a lead time [of] a month,
two months. [I was told] if the mission changed a little bit, or the
mass properties, the weight, changed, they couldn’t [update and]
run it. They could run with the old stuff at that point where they stopped
[updating], but we had the flexibility to run [with the latest data]
real-time in the ACR.
So that might have been the reason [at the time] that they didn’t
want people to know what was going on in that room. [I was told that
a] very few people know that the first rendezvous [maneuver update computations
were] done by those people there [in the Roundup picture during GT VI-A].
Of course the emergency entry was done with my program [on GT VIII],
but of course they kept that quiet too. It sort of bothered me a little
bit when a lot of people got awards that handled my numbers, and nothing
was mentioned [about where they came from].
Wright: About what
you did.
Garcia: About what
I did, but it didn’t bother me, because I liked operations back
then.
Wright: Would you
share a little bit more? When you talk about it’s this group of
people who did the first rendezvous, then the emergency entry? Explain
that. Were you there when they were?
Garcia: Oh yes.
Wright: Share with
us those [memories of Gemini VIII].
Garcia: Larry Davis
was the ACR chief. I was one of the ones like the rendezvous people,
I was running my program. What happened [on Gemini VIII] is that they
docked with the Agena and they started spinning. Of course they didn’t
really know [what was causing it]. They thought it was the Agena, but
it was actually a stuck thruster in the Gemini. They had to activate
a ring of thrusters. There was a mission [flight] rule that if you activated
that ring of thrusters [RCS (Reentry Control System)] you had to deorbit
as soon as possible [to the next planned landing area].
The RTCC was in the rendezvous mode [I was told]. The programs were
in the rendezvous mode. When we [the team and crew] finally came up
[with] what the real problem was, and they finally stopped the rotation,
they tried to load the RTCC entry programs, and they didn’t work
[I was told later]. We only had two revolutions—to either deorbit
on one or the other one [even though the crew wanted to continue]. I
think the recovery ship was the [USS] Mason. They were going from one
recovery zone to another one. As soon as the [USS Mason] passed the
time to deorbit [for the first opportunity], they would start and they’d
head for the other [planned landing area]. It was 7-3, 7 was the orbit
and 3 was the recovery area [in the West Pacific]. I think it was off
the China Sea somewhere. They couldn’t get a good deorbit time
in the RTCC. It was way off [I was told]. Back then the engineers, when
we ran something, we knew approximately what the answers would be. We
sort of knew. So when they would run something, they would come up with
an answer, and say, “That’s not right.”
The thing that I had with mine is that I kept it updated all the way
through. We had mass properties just maybe a few days before launch,
so I would update my program. Plus I had all the other orbital mechanics
information in there that was already checked out completely. Anyway,
so I ran [the backup entry program], because I did what we always did.
We would check the RTCC. I ran my program. Larry Davis told me, “They
loaded up your numbers.”
I said, “Really?”
When they did the deorbit, we were trying a new system. It’s called
rolling [re]entry. It was a bank, reverse bank, so you had to compute
the time to do the deorbit, the time to do the bank, which was [also
an angle-computed] roll, and the time you come out of the bank [and
roll] to the other side. The backup program had four or five numbers
that you had to compute. The Mason said, “We see it.” [Actually
it was a relay from the (Douglas) C-54 (Skymaster) aircraft], and that
was the closest to the target that they had ever had [up to that time],
which was one and a half nautical miles to the target. [I am sure that
the crew manually flew the bank angle commands that the spacecraft computer
generated from the reentry data that was entered.]
I have to tell you the story on GT-5. The RTCC had the wrong Earth rotational—every
24 hours there was a delta angle that the Earth would go through, and
that had to be added. They had the wrong number to add, but I had the
right number. The RTCC had [sent a navigation update with] the wrong
Earth rotational [range angle], a delta angle that the Earth would rotate
[from the initial alignment of the inertial system] and that had to
be added. They had the wrong number to add [which caused a navigation
error position in the onboard computer] but I had the right number.
When they deorbited on GT-5, they couldn’t find them. So they
gave me the numbers [the actual deorbit data], and I ran it. I told
them where to find them. That’s where they were, with my program.
Plus I did all the [Gemini entry] postflight—I had done the postflight
from GT-3 on, we did a report after every flight. We did a postflight,
what went right, what went wrong. So we would do a complete—like
another [reference] mission, another flight. Like we do prelaunch [simulation],
we did this postentry. So we duplicated the mission. That was done in
entry, but it was also done on orbit and all the other portions of the
flight.
I always did the postflight on the entry, the deorbit and entry. I knew
my program was right. Prior to that, GT-5 was 98 nautical miles away
from the [landing site], so the recovery ship didn’t see them.
So we had to scramble. They gave me the numbers that they put into their
computer. I stuck it in mine and I said, “Well, they’ve
got to be here.”
Wright: They were.
Garcia: They were.
Wright: I’m
sure that ship was glad to know that you knew what you were doing.
Garcia: Yes. The
others—GT-3, GT-4—were also like 40 miles away. So we knew
it was a problem. I told my supervisor. I said, “I put their numbers
in and I get where it hits. I’ve got the right logic in there.”
That’s why on GT-8 they took my numbers, because [our ACR team]
knew from all the postflights that they were right.
Wright: Did that
continue after that?
Garcia: No. They
fixed the RTCC.
Wright: Fixed theirs.
Garcia: Yes. They
finally went back and fixed [the Gemini entry program]. I guess at some
point they didn’t want to think that they were wrong, but that
was a problem that they had. The problem was, like I said, that it was
months [I was told] before a flight that they would have to shut everything
down and just stay where they were. That was the big problem.
Wright: You had
the advantage of being able to work.
Garcia: Oh yes.
All of us. The rendezvous guys and everything. Eventually the rendezvous
program got [checked out in] the RTCC [I was told]. Then the rendezvous
was done from the RTCC, then we checked.
Wright: Was it
a small group that worked?
Garcia: We had
three shifts. For each one I trained a couple of guys to run my program.
I eventually became an ACR chief also, then I couldn’t run it,
but I had people running the program. There were some contractors that
would come in because they had other special functions.
I had a landmark star sighting program that I developed with the help
of a contractor. I gave the requirements. I called it AGOP, which is
Apollo Generalized Optical Pointing. We computed pointing programs for
telescopes around the world. Well, actually there were just four that
I remember. One was Jodrell [Bank Observatory] in [Lower Withington,
Cheshire, England]. There was one in California and one in Denver [Colorado],
then our telescope that we had here at NASA. So I think I remember it
was four.
All of those came from my program; all the pointing. In fact sometimes
we’d get out when we had time. We’d go to our telescope
here and look at the spacecraft on the way to the Moon. It was rotating.
We could see where the Sun would flash. Every time it went by the Sun
hit it and then it would flash. So we knew it was rotating. They call
that the barbecue mode. [The rotation allowed the vehicle’s outside
surface to maintain the same temperature throughout.]
Wright: Mode. What
an interesting insight, you developed the program to be able to go do
that [provide pointing angles].
Garcia: I liked
the job that I had, because I interfaced with other people at other
Centers. Since I was interested in the weather I became a weather contact
for our flight control team. So I worked with the weather people. I
took some courses in the weather with the weather guys. We used to launch
balloons to get all the [upper wind] information. We were launching
balloons in Gemini. We would get the information and stick that into
our programs, then we would know [it was safe to launch]. It was mainly
for the launch in case of an abort.
Not much for the [splash down] landing, because Gemini was just a vehicle
[designed for a water landing]. It was mainly when we started Apollo
and for the Space Shuttle that we started using the [upper] winds more
than before, but we started with that. Since I got involved with that
early too, with the winds, they knew that I was a “wind”
person. That’s what [some people] called me. So right after the
end of Gemini I went to the first Saturn V launch, unmanned. I went
down to the Cape [Canaveral, Florida] to coordinate the winds. [Apollo
5 was the first qualification of the Saturn V launch vehicle and Apollo
spacecraft with the Service Command Module (SCM) and a boiler plate
Lunar Module (LM).]
We were in this building and we finally got a go for launch [for Apollo
5]. We had sent the last wind information back to Johnson [Space Center].
I was the only one from JSC, but there were three or four guys there.
So they said, “Come on.” So we went up to the top [roof]
of the building to get a good view of the Saturn V. The guards came
over and ran us off. Then we had to hurry to get to a [clearing] where
we could see it. We got there with about five seconds to spare.
This was the big rocket, Saturn V. We were close enough, maybe a mile
and a half or less, I don’t remember, but we could see it. You
could see it about this tall [indicates with hand]. When it blasted
off, it ignited, it seemed like it didn’t move. It stayed there
for a little while, then it slowly went up. It was so slow. Not like
the Space Shuttle.
Then we got the sound. That was the first time I had ever heard that
sound. It was like a clattering or shattering, like it was waves, the
sound, and it almost hurt my ears it was so loud, but that was the first
time that we had launched a [complete] Saturn V [with an Apollo spacecraft,
SCM, and a boiler plate LM]. It was unmanned of course. [It did go into
orbit.]
But it was the complete Saturn V and it was a test. Of course my wife
was watching from our motel, because I took my wife down there. Afterwards
we went out to eat to this place that somebody had said, “Go to
this place to eat seafood.” It was upstairs. We went up. We sat
down, and two tables from us was Walter Cronkite. I told my wife, “That’s
Walter Cronkite.” The reason I knew it was him is because when
I was in the Army they had films [where] he would give [us] his pep
talks. Walter Cronkite. I don’t know if he was ever in the military,
but he would dress up in a soldier’s [military correspondent]
uniform. He would tell us all about that. So I said, “That’s
Walter Cronkite.”
Wright: That’s
neat. That was a good day, wasn’t it?
Garcia: Yes. It
wasn’t so good coming back. That was when Dr. [Martin Luther]
King got assassinated. We were driving back and I told my wife, “I
don’t know.” They had this [gas station] on I-10, back when
I-10 wasn’t that big, and we had to stop for gas, and it was an
all-black gas station, and, well, we were Mexican American. [So I felt
safe even though they looked upset and angry.]
Going to the Cape we had stopped in New Orleans [Louisiana]. There were
two streets that form a triangle. There was a drugstore, but it was
triangular, it had two entrances. We came in on one entrance, and they
had two counters separated by a wall. We went to the other counter on
the other side and they wouldn’t serve us. They said, “Go
over to the white side.” I told my wife, “Well, let’s
go.” So we went over. My wife has green eyes and kind of light
skin and sort of brown hair, blondish brown hair. So we went and sat
there. We had our drinks, and we decided to go out that other door [which
turned out to be the black entrance].
There were—it was like a boycott. The blacks were there with all
their [signs]. There were newspeople there with cameras. We came out.
They thought that we were trying to break the [picket line] and I told
my wife, “Let’s get out of here.” That was before
King got murdered.
My wife said there was a lot of policemen and maybe some military. I
didn’t see them, but she said they were all military, maybe National
Guard. The blacks were going up and down. They were trying to boycott
the drugstore at that point [the black entrance].
Wright: What a
historic trip for a number of reasons.
Garcia: Yes, then
coming back, like I said, they killed Dr. King.
Anyway that was the start of the Apollo program [for me]. I guess we
were satisfied with Gemini because we made all the accomplishments that
we set out to do, the rendezvous, the 14-day mission. We checked out
all the systems, the EVAs [extravehicular activities]. So we were kind
of happy about that.
We were transitioning into the Apollo. We kept the ACR going, and they
changed the name to the Real-Time Auxiliary Computing Facility, RTACF.
Before the end of Gemini I worked in the Control Center. Well, I moved
from there to the Control Center, to the back rooms. They call it a
Staff Support Room [SSR]. Larry Davis, myself, and two others became
Trajectory Support Chiefs. They called us Traj. We were in the SSR,
which was the Staff Support Room, next to the Flight Control Room.
We mainly worked with FDO [Flight Dynamics Officer] and RETRO. Back
then in Gemini and Apollo we had Retrofire Officers, they called them
RETRO. FDO was the one that took care of the on-orbit [and launch trajectories].
RETRO took care of the ascent [for aborts] and the entry, which was
what I really was working on. I did work on orbit some. I did some translunar
trajectories, because I got moved around. I was in several sections
but still in the Flight Analysis Branch. So I worked in different areas.
We were still a team. They changed our name to Mission Support Section.
We worked the Apollo program. The [first] main one that I really remember
is Apollo 8, because that’s the one that we went for the Moon.
When I was at school, when I studied under Richard Battin’s book,
there were several trajectories that you could have. One was one that
you could go around the Moon and come back in case you had problems
[called a free return trajectory], then the other one was a fast trajectory
where you didn’t have that capability. So NASA chose to keep the
one with the flyaround capability, which was good for Apollo 13, because
if they hadn’t had that, they had no thrusting capability, other
than the LM [Lunar Module]. They couldn’t use [the SCM because
of the explosion]—[as] they went around the Moon, they couldn’t
do a burn. They usually did the burns behind the Moon [to get into a
lunar orbit]. So we wouldn’t know whether they did them or not.
[On Apollo 13, the LM was used to perform three burns—one to get
back to the free return trajectory, one to assure a Pacific landing,
and one mid-course correction burn to achieve a safe entry trajectory.]
On Apollo 8 one of things we did in the ACR was we computed a time that
they would show up when they came around the Moon. So when they did
the burn we knew if it came out too early, they didn’t do the
orbit around the Moon. If they came out at a certain time—there
was an optimum time they would come out—then we knew they were
[in] the right orbit around the Moon. They did. So we would compute
that time in the ACR. There was a lot of things we did there. So they
came around the Moon. When they came out, we knew. We in the ACR were
probably the first ones that knew that they were okay. So we all went,
“Yeah, they’re in orbit around the Moon.” That was
as far as the [main] one that I remember, Apollo 8, because that was
the first time we left the Earth and went around the Moon.
Wright: Were you
able to hear all the loops?
Garcia: Yes. Well,
even in the ACR we had a [squawk] box. We could punch up some of the
loops, but we had more when we were in the Staff Support Room inside
the Mission Control Center. So we had more loops. There were some we
could talk and some we could just listen.
The ones we could talk were with the FDO and the RETRO and maybe one
or two of the guidance officers, but we couldn’t talk to the Flight
Director or the CapCom and some of the medical doctors [unless they
called us]. We couldn’t talk to those. Each one had their own
set [of assigned loops].
We had our headsets. Even in the ACR we had our headsets. We had our
monitors too. We would take information sometimes from the monitors,
because the RTCC would run something [that we needed for our programs].
They would have some information, so it was a two-way street. Sometimes
we’d get their information, sometimes we sent them information.
We had a camera in the ACR and a table and when we would get our information,
[if] it was something that we couldn’t really talk right away,
we’d put it underneath [the camera], then they would read whatever
they wanted off of our information. So we did that, but when we were
in trouble, like GT-8, we did [most of] that by voice, because that
was the quickest way we could do it.
I enjoyed working the operations and working computer programs. That
was a balance that I wanted, so it’s a good thing I didn’t
take the recovery ship. No, sir.
Wright: That was
a good decision.
Garcia: Because
that would have been pretty boring. Plus it wasn’t good for my
wife, so I didn’t want to do it.
Wright: Like you
said, you had so many opportunities to study meteorology and put all
those things together.
Garcia: Yes. Well,
I eventually became what they called the weather guy or the wind guy.
So I used to go to White Sands [New Mexico] and to Edwards [Air Force
Base, California] and also to the Cape and talk to the weather guys,
because you had all kinds of programs and sensors. I would [also] go
with our weather guys. SMG was the Spaceflight Meteorology Group. They
had their offices on the wing that was the Control Center and then the
office on Building 30, an area there between the two buildings, or the
two sides of the building [Building 30], and that’s where the
weather guys were. At one time that’s where they were.
I got to know all the weather guys. I liked that part of the job, because
a lot of the people that I worked with in Flight Analysis Branch, they
didn’t go anywhere. All they did was stay at their desks all day
long, work the computers.
That’s something else too. When [I] came to work, we had slide
rules. I don’t know how long it took before we even got a four-function
calculator. With the 7094 computer, we had to submit our work and wait
a day before we got the information back. Eventually we got some kind
of interface where we could get on and type our information in and then
it would come back, but that was I don’t know how many years later
that we got that capability. We were doing our computations [mostly]
in our heads. We did use our slide rules just to get an approximation.
We had our logic written down. We’d go through the equations that
we had down, then we’d get something close. You can’t read
the slide rule [accurately], but we used to wear our slide rules on
our belts.
Wright: Got to
have tools.
Garcia: Then we
finally got the four-function calculators. We also had a different calculator
at the beginning. It was electromechanical. It would go round and round
and round and it would go ka-chunk ka-chunk ka-chunk. You’d get
one number at a time come out. I didn’t trust those. Didn’t
trust it. Anything mechanical I didn’t trust. I trusted my slide
rule better than one of those mechanical calculators, but the thing
about it is when I was working with the Texas Highway Department that’s
what we used.
I have a story on that. The engineer I was working with, he went on
vacation, and his supervisor came over when he was gone. He said, “Fix
this problem that we got.” So I redid all his design on one of
the highways, which was on Highway 281, the portion down there in Hidalgo
County. I redid the whole thing. When he came back he said, “Oh.
Thank you.” [He was an aeronautical engineer, not a civil engineer.]
Wright: Maybe we
should have kept you in the Highway Department. They could use you now.
Garcia: I was only
like a one- or two-year student at Pan American College, but I fixed
it all up. The other highway I worked on was the one that goes to Padre
Island, Highway 100. I always remember that.
Wright: You made
lots of people happy going there, didn’t you?
Garcia: Yes. What
we did, we moved the highway a little off to make it bigger. We did
surveying, so I was real happy about that. I learned a lot in the surveying.
I learned how to design the highways. I also know that when they say
going around a curve [for example] you can go only 50 miles an hour,
we built a pad like 15 miles on that. So when I go around the [curve],
it says you can only go [a certain speed], I know you got a 15-mile
pad.
Wright: You might
not want to share that secret with everybody. Speaking of design, you
mentioned earlier that you designed trajectories.
Garcia: Yes, the
prelaunch trajectories [for our abort studies and entry studies].
Wright: Then you
were talking also about the tools. Can you give us an idea of the evolution
of the technology and how that affected the different areas that you
worked in?
Garcia: Before
we had high-speed [interactive] computers we had to do parameter studies.
They always say, “If you can go to the Moon, why can’t you
fix this or that, cancer and stuff?” I say well, the translunar
trajectories or translunar mechanics or guidance, that’s fixed.
You can’t change that. That’s physics. It’s very easy,
but to go where you want to go, you have to design when to do the maneuvers.
In order to do that, we had to do parametric studies to find the best
angle, the best time to do the burn. It took a long time.
You’d run something. You’d have to wait a day and then do
a little tweak and send it back in, but when we got the high-speed [interactive]
computers and [minimized] the time to get the answers back, it really
improved, and we put all those improvements into our programs. You start
off with the basic program and then you tweak it until you got what
you wanted. Of course there’s navigation and there’s guidance.
Navigation [you have to know where you are] is planning how to get there,
then the guidance is guiding it through all those points.
Now the high-speed entry, we’d never had to hit that [precise
entry trajectory angle before]. Jon [C.] Harpold was the one that did
a lot of that work on [the] high-speed entry coming back from the Moon.
That was very critical. If you missed [by] a little angle you could
skip out or you could skip in, then you’re done for. So he did
all that work. I was sorry to hear when he went, but I used to talk
with him a lot, because I was doing the Gemini entry. At that time he
was doing Apollo.
Wright: Speaking
of the Moon, tell us about Apollo 11 and your role in that mission.
Garcia: In Apollo
11, like I said, I had all that [ACR] support. The landmark sighting,
lunar landmark sighting. The telescope pointing angles for the observatories.
What else did I do on Apollo? I had several programs that I had come
up with. One was called the work schedule program that had all the vectors.
At the time we were going to get the vectors, all the tracking stations,
the look angles [entered prelaunch in the program]. We’d run that
in the ACR.
The main thing was the star sighting program. It’s what they would
send over to the crew at certain times. I think they actually had a
[sextant] to look at the stars. They checked their position with the
stars. That was some information that went directly to them. Of course
we took care of the how much fuel, OAMS [Orbit Attitude and Maneuver
System] burn, and OAMS time on their maneuvers too. We did a lot of
that, but there wasn’t [that] much to do translunar [in terms
of ACR support].
I always got the night shift, but, I liked that, because that’s
when we did [most of] the work. Even on the orbital Apollos, I used
to get on John [S.] Llewellyn that we now have all the information ready
and you need to start doing something [for the deorbit]. I would push
him sometimes. John Llewellyn was a RETRO for Apollo. He was a character.
He was always doing crazy things. Of course we did a lot of stuff on
the splashdown party.
Anyway, I always wound up on that [night shift]—I don’t
know whether they call it the second shift, but I wound up on that.
Like I said, I didn’t mind, because I always talked to the astronomers.
I always sent in the information that we ran. The astronomers would
come back and say yes, we found it. They would get the pointing angles
and everything. I talked to NORAD [North American Aerospace Defense
Command], because we were always checking where the spacecraft was,
especially when it was in [Earth] orbit. They would run a program. We’d
give them a vector and they would run what they called a COMBO [Computation
of Miss Between Orbits], because NORAD kept track of every particle.
I don’t know [down to] what size, but they kept track of everything.
I used to talk to a Captain Lewis, since I was the one at night, I don’t
know during the day whether they talked with them or not. Harpold came
one time at night to see me, and he sat down. Everything was so quiet
[during translunar]. He said, “You’re the only one talking.”
So I’d like to get a hold of the [translunar and transearth] tapes
on the Apollo 11, since I was in the back room running all the programs
in the ACR. There was nothing [much] going on other than keeping track
of where the vehicle was [and consumables]. He surprised me. He said,
“You’re the only one talking on the loops.” So I knew
I was doing something for Apollo.
Wright: Did you
still have a lot of your clearances?
Garcia: I don’t
know. I don’t know.
Wright: I just
was curious, talking about NORAD.
Garcia: All I know
is when I came to work for NASA they gave me a secret clearance, but
I don’t know whether they would have to redo my top secret. I
also have a funny story on that. When they were checking me, when I
was in the Army, to get my clearance, I had a good friend that had a
welding shop down in The Valley. Well, his father had the welding shop,
and he was working there. He had the helmet for welding, and he had
a swastika on there. He said when they came to check, “I had the
swastika [helmet] on.” That’s when I got my clearance.
Wright: In spite
of your friends.
Garcia: He and
I built a semirobot. We could make his head move and his arms and his
hands. We had like a flipper thing [for the “hands”]. We
had it at a science show when we were at Pan American College. I got
an offer from some company [after that]. They were doing robotics. I
turned them down too.
We had our science show in the basketball court of the field house.
We hid up in the scoreboard area [where we had our controls]. We had
a robot, and all the kids would come and we had voice connection. We
could hear them and we could answer their questions through a speaker
in his chest. We used “cellsyns” to move the head, arms,
and hands. [They were electrical motors that were synchronized to duplicate
movements in our controls.]
Wright: There’re
probably kids today talking about, “We had this robot, it was
talking to us.” They still don’t know.
Garcia: Yes. I
designed it and my friend built it because he was a welder. [I did help
him build it when I had time.]
Wright: He could
make it work. That’s a good combination.
Garcia: Yes, but
he wound up getting in all the pictures [except one]. He got in the
newspaper. He just happened to be there when they came. He was finishing
up. He got in all the pictures that went in the newspaper. [We had a
lot of fun with the kids also.]
Wright: But you
got to work on Apollo 11, so that’s a good tradeoff. You mentioned
a while ago too about [Apollo] 13, about how important it was. Were
you part [of that mission?]
Garcia: I did not
work on 13. Apollo 11 was the last Apollo flight I worked on, because
they took a group of us to work on the Space Shuttle. I worked on the
Space Shuttle aborts, which is mainly the Return to Launch Site [RTLS]
and the landings in Africa [Transoceanic Abort Landing (TAL)]. We did
the Abort to Orbit [ATO], where something happens, you can still go
into orbit, but then the ones that you land in Spain or land in Africa
I remember. So that’s mainly what I did on the Space Shuttle,
plus the real-time support. Some logic of mine did get into the Space
Shuttle computer, on the aborts, on the GRTLS [Glide Return to Launch
Site], which was the glide portion.
Wright: Tell us
your thoughts when you learned about Space Shuttle and some of the initial
ideas that came out?
Garcia: I didn’t
think that was the right thing to do. I didn’t think that we should
have given up the Saturn V. It was our heavy [lift] vehicle that we
had. It was stronger than the one the Russians had as far as I remember.
All the plans that they had didn’t work out, like we were going
to launch twice [a month] or maybe more. I worked with the [weather]
people in Vandenberg Air Force Base [California]. We had started a launch
site there. They already had just about everything done. I even went
there one time to talk with the weather people, because we were going
to launch balloons from there to get the upper wind data. I knew where
the landing field was going to be. [Their PX (Post exchange) would have
to be moved.] They eventually shut that [launch site] down. We never
were able to do the launch frequency that was advertised.
There were one, two, three, maybe four Saturn Vs left. One wound up
at KSC [NASA Kennedy Space Center, Florida], one in [NASA] Marshall
[Space Flight Center, Huntsville, Alabama], and one here. I don’t
know where the other one went. Maybe they used it, but we had these
vehicles that could have flown too. They wanted to go to a system that
we could recover like the solid rocket boosters.
I did work on the landing areas and on the Orbiter. It really got me
too that on the first manned orbital flight, John [W.] Young and [Robert
L.] Crippen were on that one, they had a bunch of [small] flags. I didn’t
get one [of the plaques with the flag]. I did a lot of work on the aborts
and getting the wind data, all that coordination with Edwards Air Force
Base. I went there several times and coordinated all the [balloon release
schedules]. I’m not saying that I was discriminated against, but
from the very beginning, I never got any awards, never got anything.
The main thing that I know is Larry Davis was one of my best friends,
and the guys I worked with at my level were good, but [I] never got
anything, not even for the emergency deorbit, [and] all the work that
I was doing. I don’t know what the other guys did, but I knew
what I was doing, since I worked on mainly the night shifts [during
the flights] where all the work was done.
The next person that [came] after me on landing days on one of the orbital
missions, he said, “You’ve done everything.” He said,
“What am I going to do?” I had already gotten everything
done [RTACF entry tasks]. I had pressured John Llewellyn to get his
stuff done. I would tell him what the good vectors were, because we
ran our stuff. I said, “This is a good vector and this is the
time you’ve got to do it.”
He says, “I know, I know.” But John Llewellyn was kind of
a crazy guy. One of the flights, he had to come in, he parked on the
grass.
Wright: I think
I’ve heard that story.
Garcia: There were
a lot of stories going on. We did a lot of stuff.
Wright: You mentioned
earlier about the amount of females and Mexican Americans. Were there
others?
Garcia: One or
two. [Most Mexican Americans] came from south Texas. None of them came
from the big cities [that I knew of]. In The Valley, a lot of the people
there go back to the Spanish [settlers], when the king of Spain sent
people over [to populate south Texas]. We’re more self-reliant.
I was surprised one time when I got out of The Valley and I was traveling
with my two uncles. One of them had blue eyes and looked very Anglo
and the other one had brown eyes, looked like me. We went to this restaurant.
We were out of The Valley, halfway up to San Antonio [Texas]. We stopped.
They wouldn’t serve me and my uncle but said, “We’ll
serve him.” My [other] uncle said, “He’s my brother
and he’s my nephew.” So we all walked out. It was pretty
bad back then. It wasn’t just the blacks. I had never experienced
anything in The Valley, because we were like 80 percent of the population.
We belonged to the old settlers. A lot of us came from the old settlers.
I’ve been upset for a long time, because when the war between
Mexico and the US was fought, the Nueces River was supposed to be the
border, not the Rio Grande. They forced Mexico to give up that land,
and they forced Mexico to pay the settlers for the land. Of course Mexico
never did, and the Texans went down there. Since the Spanish or Mexican
Americans had large ranches—that’s where the cattle industry
came from, from the Mexican American cattle people—they took over.
There was only one ranch house [and few ranch hands] or there weren’t
that many. They would come in and push them out or kill them, and they
would take over the land and the cattle. They went all the way down
to the river. My wife’s family had 25 square miles from a grant
from the king of Spain that they lost.
Of course everybody [has] been fighting for the mineral rights. That’s
what they [have] been fighting for, because that was supposedly not
in the [treaties]. What they did, if you go to the Land Office in Austin,
everything starts with the Spanish land grants, even up to Austin. The
Spanish land grants, that’s where all the land papers start. Of
course they had bogus land sales all the way, but anyway, that’s
a different story.
Wright: But a very
interesting heritage.
Garcia: In here
[referring to resume] I’ve got where I was a migrant worker. It
was me and my brother. My parents didn’t go. It was just me and
him, with this other group. We’d go and pick asparagus and tomatoes.
At one point, when I finished [working], we used to come late to high
school, but in [our] senior year my brother and I said, “No, we’re
not going to be late.” So we bought a car. The car didn’t
get there, but we did. [We used to travel in the back of trucks.]
Then we got into football. So my senior year I did spend the whole year
[at school]. I wanted to spend the whole year before I graduated, because
I wanted to be an engineer. Of course our counselors, they discouraged
me. I didn’t like that at all. They wanted me to go to trade school.
I told them, “I’m the highest science and math student in
the school.”
“Well,” they said, “but you can’t succeed.”
So they discouraged me. There was only one teacher that didn’t
do that. I remember her. Mrs. Brooks. She knew I wasn’t just a
regular migrant worker. [But it was still just lip service, since no
effort was made to help me get a scholarship.]
Wright: You did
that as a part-time job.
Garcia: Yes, but
it was pretty bad. Some of the stuff back then. Of course now everybody
knows that anybody can be anything just given the right environment,
the right training.
Wright: So many
of the barriers are gone now, but it’s still determination. Tell
us about your transition to Houston. You had lived in Austin as a student,
and you got the job, and then you came here. Where did you and your
wife live? You mentioned you had friends here.
Garcia: Oh yes.
We just stayed [with them] when I turned down the job and did the interviews.
I was happy with work—I mean when I went to interview with Charlie
Allen. He became my boss, and he was the only one that eventually gave
me a good evaluation at the beginning, because he knew that when I came
I didn’t go to any training. I came straight in and started working.
He was the only one that really gave me a good evaluation.
When my wife and I came we were looking for a place to stay. We wound
up in South Houston. We rented a house. I never wanted to be in an apartment,
so I rented a house for six months. I signed a six-month lease. I told
my wife, “At the end of six months we’ll buy a house.”
So we came over here to Nassau Bay [across from JSC]. My wife was a
nurse, RN. I was an engineer. They [still] wouldn’t sell us a
house. I saw some people there that were the same rank as I was. They
were Anglo, and they got a house in there. We didn’t. So I said,
“Look, they don’t want to sell us a house.”
So we went and got one, still in [what is now part of] Webster [Texas].
We got one in Green Acres [subdivision], which turned out to be a bad
deal, because the developer ran out of money and left.
But the house had a swimming pool. That’s where I kept physically
fit. I wanted to stay physically fit, so we stayed there. We had a water
well for the neighborhood. We were in the county. We didn’t have
meters on the water; we just paid a certain amount. We always had problems
with the water. Lines would break, and we had septic tanks. One time
one of the water lines broke. My neighbor was not very friendly. He
blamed us that it was our sewage that was coming out. We had ditches,
so he dammed it. We would go and break up the dam. [That was what the
county people told us to do.] So it got to the point where one night
they came and broke our windows [with baseball bats]. My wife was pregnant.
We had just moved in there.
I called the police and they came over, then they accused me of doing
things [to them]. The policemen took their side. I said, “Look,
my wife is pregnant. Why am I going to be doing all this stuff? They
broke my windows [and glass got all over the kids’ beds].”
They eventually moved away, which was good, because they were going
to move or we would. It got to the point that my wife said, “I
don’t like to live here in Houston. It’s too much discrimination.”
I said, “It’s fine. It’s where my job is and we’ll
stay here.” So we stayed. I didn’t really want to get into
this, but this is my experience here with my job, but my coworkers were
the greatest. They were great, especially Larry Davis. He was a good
friend. We went out together.
Wright: You arrived
in the midst of the whole space fever. Everybody was rushing to get
to the Moon. Tell us about your working schedule. Were you here more
than home?
Garcia: Yes. It
was hard on my wife. I came to work February 1st. Like I said, I don’t
remember whether it was $7,200 or $6,800 a year. I doubled my salary
in 11 months, but it took a toll on us. We had to work. We were on [tight]
schedules. We had to work Saturdays, Sundays, nights, sometimes double
shifts, because we did a lot of simulations. Not only were we working
on our programs during the day, but then we had simulations in the evening.
We worked until midnight, then we had to be back at work at 8:00 [a.m.].
My wife didn’t like it too well, but I said, “Well, this
is my job. We’ve got a mandate from the President to launch, to
get to the Moon before 1970.” We were working our tails off. There
were times when I’d leave and then three or four hours later they’d
call me, and I’d come back, [in] the middle of the night.
So that first year we worked a lot. The second year also, but the third
year wasn’t that hectic, but the first two years were pretty hectic.
Pretty hectic.
Wright: How did
it change when you left the ACR to move over to the Shuttle area?
Garcia: We got
moved over after Apollo 11. Like I said, I didn’t work [Apollo]
12 or 13, but I was around the area when they were working on all the
gadgets to clean the air [after the Apollo 13 accident], because we
were still doing some simulations. I would see them working. Whatever
they had on board, that’s what they had to work with. They were
duplicating on the ground, and I would see them. Some of them were my
friends that were working on that, I remember, but we kept working on
the Shuttle. Mainly it was less simulation, less mission support. We
were working more on doing parameter studies.
Then having meetings on going this way or going that way [on the designs].
At first we had the designs on a fully recoverable Orbiter with the
booster rocket coming back and landing, which was the start of the return
to launch [site] abort. We took what we learned on that one to apply
to the abort when we had a throwaway tank but recoverable boosters.
But we went through all kinds of configurations. We tried all the aerodynamic
[configurations] on the wings. Finally we settled on that one configuration,
which was a compromise really. [The Air Force had a lot to do with the
final delta wing design.]
Wright: You felt
like a good compromise?
Garcia: Yes, I
enjoyed working on it, but I didn’t like the work we were doing,
because we were leaving the boosters [Saturn Vs]. I wasn’t the
only one. There were several of us that didn’t think that that
was the right thing to do, but that happened. So I said, “Well,
we’ll just do the best we can.” At that time they also brought
more contractors in. They were doing more of the work. Some of the work
I was doing, they finally took over, and we became like managers of
[small] contracts that we had.
But I still had my own programs, and I could work on that. Then I started
developing the real-time weather coordination, because they were going
to need that, more than we worked on for Apollo, because of the landing
sites.
Like I said, at that time I did a lot of traveling. I went to Edwards,
I went to White Sands, and got to meet all the people that [worked]
with the weather and the operational people. Not only just the weather
people but the operational people, because I don’t remember [for]
which Shuttle mission [I went to White Sands]. We were landing in Edwards
[on STS-1]. Eventually we were going to land at KSC. Well, we landed
at KSC for the first time, then on the third time [STS-3] there was
a lot of rain or something at the Cape. There were problems at Edwards
[also]. I was doing all the weather coordination and the winds. We had
conferences. I finally [agreed with the decision] to go to White Sands.
That’s the only way, because the Orbiter could not stay up much
longer. Nobody wanted to go to White Sands, because they weren’t
prepared. So they gave them 24 hours [to] a day and a half, to transport
all that stuff from Edwards to White Sands and then to set up all the
communications and whatever they had to set up. When I went to White
Sands later, when I was working with RSOC [Rockwell Space Operations
Company], they said, “You’re the cause of us landing in
White Sands. You were the one.”
I said, “That was the only thing we [the entry team] could do.”
But they said they were glad. That was their only landing. That’s
what they always go back to.
Wright: The best
part, it was a safe landing, because of the weather.
Garcia: Yes, but
in history maybe they [may] have something of what they had to do, but
I know they had to do a lot to be able [to support the landing].
Wright: Yes, in
a short amount of time.
Garcia: They said,
“We were scrambling.” I think they worked all night.
Wright: Were you
involved with the approach and landing test?
Garcia: Indirectly.
I knew the people that were working on it. We had the programs. I knew
what they went through, but I was involved in with the aborts, because
you had to do approach and landing, but not the design of the approach
and landing. I knew the people that worked on that, because we all worked
on this thing [the Space Shuttle], but I was mainly more on the aerodynamic
forces when you come in. That was more of what I did.
Wright: What were
your memories of STS-1, with Crippen and Young?
Garcia: They called
me up, I don’t know, [about] a month before the flight, because
they were concerned about the aborts. So I went, because that’s
what I worked on, the aborts. Mainly the RTLS, the return to launch
site. They called me up because they said, “We’re kind of
confused on some of this stuff.” Actually I don’t know why
but they called me, so I went and told Harpold. I said, “John
Young called me, he wants me to go over and tell them all about the
RTLS, the return to launch site.” Which includes the powered [abort],
so I went over all the things that we had to do.
I said, “We checked it all out, it’s fine.” They said
okay and thanks for coming, but I think that they just wanted to see
me probably. [I had only talked to them on the phone before.] That’s
what I thought, because they knew all [about the aborts], they just
wanted somebody to tell them. I said, “I don’t know why
they called.”
I was in the staff support room in the mission when we did the entry.
That was our first entry, but we had the times that they were going
to go into blackout and the time they were going to come out of blackout.
We had computed those times real-time in the ACR, so we knew. We were
just listening and listening, until it came time for that. They did
come out at about the same time.
Wright: Well, that
was exciting.
Garcia: Oh yes.
Everybody was on pins and needles.
Wright: Especially
for a manned flight, first time out.
Garcia: Yes. Oh,
I remember when I was talking to the [weather] guys at Edwards. They
said, “We saw the landing. John Young came out and he was just
jumping, looking at the Orbiter. I think he kicked the tires.”
Wright: What an
exciting time for you to have worked on these three different spacecraft.
Garcia: Yes. I
didn’t work on Mercury but I knew [some of] the people that worked
on Mercury. Carl [R.] Huss became our MPAD division head at one time,
and I used to talk with him a lot. In fact I bought [one of] his car[s].
He had a T-shirt that said he was the first Retrofire Officer in the
free world or something [like that]. They worked out of KSC when they
did Mercury, but he was a good guy, Carl Huss. He said, “I’m
the first Retrofire Officer of the free world.” All those stories.
Wright: How many
Shuttle flights were you assisting with before you left?
Garcia: [STS] 51-L
[Challenger] was the last one that I worked on. In fact I was part of
the launch systems evaluation advisory team, LSEAT. We had programs
[in the ACR] that I ran. I did not develop them. Some other people developed
them, but I ran [them] and I had my people update the programs in the
ACR. We’d take the wind information from the balloons and we’d
stick it into the programs and run the analysis.
The Orbiter had sensors on the wings and on the belly and on the nose.
I think the tank also and the boosters had sensors. We would compute
what we called load indicators. We started two days before [launch]
running the programs. That was just some of the programs. We were also
running the [abort] entry at the same time, and I was doing both, the
entry and the launch.
The load indicators would tell you whether there was too much stress
on certain parts of the Orbiter. I did that for most of the Shuttle
launches. I would give [some of] the presentations to the mission management
team at the Cape from here at JSC. We’d convene a meeting. The
meeting was mainly for the load indicators, since I was the wind coordinator
or I was the landing support officer, and I was responsible for the
wind coordination and the running [of] the programs for the loads.
On 51-L, I know there were several delays. One with a broken handle.
Oh, that was a perfect day to launch. That day everything was right.
The weather was right. The winds were calm, the upper winds. The handle
broke. I said, “Oh, boy.”
Anyway, the problem with the O-rings, we knew about that, and I can
tell you a story about that. I gave the [load indicator] presentation
to the mission management team from here. The load indicators were right
on. There was no problem. I said, “There’s no problem with
the load indicators.”
In fact they were lower than on some of the other flights. I’m
talking about the last analysis that we did, right before launch. So
then we went back to our consoles. Since that was my last work that
I had to do, I went down to the Control Center [Flight Control Room]
that was not being used. I plugged into the flight dynamics console,
and I was listening.
I was listening to all the discussion about not launching because of
the cold. I don’t know whether it was [Morton] Thiokol or somebody.
They disavowed. They said, “We’re not going to give a go.”
Then managers came over and said, “We got to go.” They mentioned
that the President was going to give his State of the Union message
and the teacher [S. Christa Corrigan McAuliffe onboard] and we had to
go. So there was a lot of people that said no, mainly the contractors.
As far as the winds, it was fine, but the problem [was] with the O-rings
[because of the cold].
They went ahead and went. They had an open mike [I think]. I was watching
when it exploded, I heard [what I think was] the boom in my ear. I said,
“Oh.” It wasn’t that I said, “Oh, the work we
had done for three or four days, so many delays,” but for the
astronauts. Before, I went down to a meeting at KSC, and [Francis R.]
Dick Scobee was there. We had meetings with the mission managers. I
think this was the last meeting that we were doing at the Cape when
we went through all our configurations and all our work that we had
done. Everything was fine for the launch.
Somebody had brought me [to the meeting] and they had left early. Dick
Scobee said, “I’ll take you to your motel.” So when
we got in the car he started talking. He said, “I’m not
worried about the vehicle. I’m not worried about the Orbiter.
I’m not worried about the tank or the [boosters].” He says,
“I’m worried about all the young people.” NASA had
hired a bunch of people, because at one time they hired so many and
then they didn’t hire anybody for a long time, then they started
hiring the new ones.
He said, “All the young engineers. They depend on the computers.”
He said, “You guys, you older guys, you know. Since we worked
with you guys we know that you guys know approximately what the right
answer should be.” He said, “The young guys just depend
on the computers. They depend on the answer that they get.” That
was his opinion, but he was not worried about the vehicle.
So he dropped me and said goodbye and I shook his hand. That was the
last time I saw him. That really bothered me. I knew two or three of
the ones that died. Ron [Ronald E.] McNair, because I had talked to
him. He was doing experiments and I remember we had talked about some
experiment.
[Judith A.] Resnik was in one of my meetings sometime. I would have
a meeting prior to the mission and discuss something. So she was there,
then the other two or three I didn’t know very well. I didn’t
know the teacher, but I knew Resnik and Ron McNair, and then Scobee.
It really bothered me, because I had heard all the discussion prior
to the launch. I had heard all that.
Wright: Did it
have a bearing on you deciding to leave when you did?
Garcia: No, no.
It’s just that the time to fly again took a long time. I got an
offer from RSOC, but right after [the accident] I got detailed to different
offices. I eventually became acting head of both the ascent and descent
units in [the Flight Design and Dynamics Division]. I don’t know.
We changed names as we went along, but I, with another person, we shared
the two units for a while.
At that time I got a call from RSOC. RSOC took over the wind coordination,
the prelaunch, the analysis, both on the landing and the launch, what
I was doing. They took all that over. So they offered me a job as a
unit leader, manager. I was 50 at the time. I said, “I want at
least 10 years.” I didn’t get anything signed or anything.
He was a friend of mine, the manager, because I had gone to Rockwell
at California plenty of times. I had talked with him on the entry.
He was moved over here [RSOC] then, so he knew me. That’s why
he offered me the job. He said, “I’ve got a task for you,
to develop the teams to do the prelaunch and prelanding analysis, to
design the programs to do all the work, all the landing with the winds
and the load indicators on the launch.” I said fine. They didn’t
want to let me go at NASA, but I went to talk to Gene [Eugene F.] Kranz.
He looked and went over it and [said], “Okay, I’ll let you
go. You’re going to be doing the same thing anyway.” So
he let me go to RSOC. I left NASA on one Friday and started working
on [the next] Monday.
Needless to say I finished my job in seven years and I got laid off.
It happened at a time when there was a lot of layoffs because of financial
problems, like what they’re maybe going through now.
I became a project manager, which came with the real-time support of
both the landing and the launch. So it’s all in here I think [referring
to resume]. This really helps [with our interview] because I did this
when I got laid off, and I started trying to get another job. That’s
how I wound up in Austin.
Wright: Did you
go to work somewhere up in Austin?
Garcia: I did this
[the resume] for the University of Texas, because they had an opening.
In fact one of the guys that I had taken courses with was now head of
that part of the engineering. [Byron D.] Tapley I think his name was.
So I went and interviewed with him, but there were several other people,
and he eventually told me, “Well, we need somebody that has a
doctor’s degree.” All I had was a BS degree. I took some
extra courses but I never got my master’s. I went to the University
of Houston when I was working here, but I didn’t finish.
I took the meteorology courses here with the SMG. The other thing was
that if I had finished the Russian [course], I would have been able
to get a job, but I didn’t do all the Russian [classes]. In the
Pentagon they had places [to study languages]. It was self-taught. I
was learning Russian, but then we worked 31, 32 days [in a row with
double shifts]; we had rotating shifts. In the Pentagon, all the stuff
that was going on was at night. That’s when we had all the messages
coming in from all over the world.
I finally didn’t have time to keep up with the Russian studies
that I was doing. I knew a few words and knew a few phrases, but it’s
a hard language, very hard, but I knew the alphabet. It’s a Cyrillic
type alphabet. I knew the alphabet, and I knew some of the phrases,
but it was hard. It was very hard. By yourself, it was hard to learn,
but it would have helped me a lot.
Anyway, it took me nine months to get a job in Austin. My wife and I
moved over there. I worked for 12 or 13 years with the Texas environmental
agency, [TCEQ (Texas Commission on Environmental Quality)]. I worked
with the EPA [also], and it was pretty good [for me]. I had to start
at the bottom, but within a year or two I became a section head. People
that had been working there for years [were passed over.] But I was
older than they were. I already had [supervisory] experience. I had
been a unit leader at RSOC and an acting one here at JSC. So I said,
“Well, [upper management] made the decision.”
I stayed there until when I was 68 I think. Five years ago, I finally
couldn’t take it anymore. In between while I was working here
[JSC] I bought a farm in The Valley. I had somebody working it for me,
it’s a citrus farm, then I fired him and did it all myself. I
would go down there, I don’t know for how many years, until in
’86 or ’87 we had that big freeze that killed all the trees.
So I told my wife, “No more. I won’t replant.” People
replanted and two years later they got killed again, but then they replanted
again and it’s been fine since then. So I was doing that in between
all the work we were doing here.
Wright: Busy man.
Garcia: I was trying
to keep busy. Even when I look at this I say, “Did I do that?”
Just right after 51-L, I worked with the reconstruction some, mainly
with the winds. People were trying to blame the winds, and I would say,
“No, no, it was not the winds, it was not the winds.” They
would say, “Well, we had the [contrails showing shears in the
winds].” I said, “Even the analysis [showed that the loads
were] less than in some other flights. It’s not the winds.”
I would run the simulations again and again, because after it blew up—well,
actually it was more of a [burst of] flame, it wasn’t really an
explosion [from what I saw], it was like a puff, when it broke the Orbiter
apart, it wasn’t an explosion, because it would have blown it
to bits with all the hydrogen in there, the oxygen.
It’s like it just burned out. Right after that, they called me
to go launch some more balloons. Right after everybody realized [what
had happened], because for a time the people were shocked. I was shocked.
I knew what happened, but still I couldn’t really move.
Then I got a call, “Go run some more balloons.” So I had
to go back to my post in the SSR and call down to the Cape and say,
“Release some more balloons.” So we started releasing the
balloons. Several of them, to check the winds. We ran the analysis on
those and the ones prelaunch that we did, then on those new ones. It
showed that the winds were not that critical. So at some point they
stopped with the winds being the culprit.
Then of course they really found out what it was. Of course, like I
said, we knew. I had gone to meetings two, three months before 51-L.
There were some people there, mainly the contractors, saying, “We
need to fix it before we fly again.” I guess because there was
a teacher and the schedule that they wanted to keep they said, “No,
we’ll do it after.” It’s too late.
I don’t know if that has ever come out that people knew already.
There were several flights, because they recovered the boosters, they
saw the gas escaping. They knew that. They knew the problem. The contractors
knew it, but the NASA managers didn’t [fix the problem first].
Wright: At the
initial part of the Shuttle program when they were landing in Edwards,
and then as you mentioned they wanted to bring them into Kennedy, did
you have a lot of work you had to do to adjust for the landings to be
from Edwards to Kennedy?
Garcia: Oh yes.
Yes. The weather.
Wright: Can you
share with us some of the challenges?
Garcia: It’s
different weather and also it’s a lake bed at Edwards. At KSC
we have a [finite] runway. I had been on that runway. So it’s
a different rollout, different aim points. We had aim points where you
had to hit so you would be able to stay on the runway and have a good
landing. Of course the weather was bad sometimes because of the humidity,
especially in the summer.
Then the approach was a little different also. A lot of times we’d
go through Texas. A lot of times we’d go through Mexico, but to
me Edwards was a lot easier to land at, because it was very forgiving,
but not at KSC. That was something that we really had to make sure to
go into KSC, because of the finite runway.
That was the main difference there. Other than that we still had the
HAC, the Heading Alignment Circle. It would be the same. We had more
capability at KSC, as far as the balloons and the weather [support],
but to me it was a little tougher until we finally started landing there.
Wright: Do you
want to take a look at the notes you had made to see if there’s
some areas that we might not have talked about?
Garcia: Even when
I graduated from high school, I still went to work as a migrant worker,
because that was the quickest job that you could get, but I worked mainly
in the packing plants. My brother went to work at a factory, but they
said I was too young or something. So I couldn’t work. So I had
to go back and work in the canning plants.
Wright: Were they
in Texas or did you go out of the state?
Garcia: No, Illinois.
That’s why you’re [called] a migrant worker. We used to
go to Rossville, Illinois, the one where they had the asparagus and
tomato plants and the corn. [They would provide cheap housing where]
we used to work. They would pack bales of hay, and we’d put them
up in the barns. That was hard work, but that’s where I developed
my muscles. Also pulling that cotton sack.
The people were very nice. Some were not, but some were very nice in
Illinois. After I had gone two years to Pan American, I ran out of money.
So I went back to work at an engineering company. I was a draftsman.
It was Fox Valley Engineering in Aurora, Illinois. We worked until the
contract ran out. They laid us all off. I told this friend of mine that
had gone with me, I said, “I’m going to go to Chicago.”
I got on a train, got off [in Chicago], because in Aurora we got the
newspapers of Chicago. So I saw that they needed people. I had taken
two years of chemistry at Pan American. So I got off and went to one
of those places that are those job agencies. They sent me to this place
in South Chicago. It was called Vitamins, Incorporated. They hired me
the same day I went down. I didn’t know how to get there. They
put me on an el [elevated] train and they sent me all the way down.
It was underneath first [like a subway], then you came back out.
I started working there. Well, of course, I found a rooming place [close
by] in Green Street. It was a changing neighborhood. The people that
owned this rooming house—me and another person were the only ones
there—somebody bought them out, because they didn’t want
to stay there anymore. They left. The black people were moving in. They
didn’t bother me, so I started working. Of course I got the night
shift, but the one thing they did for us is they gave us vitamins. So
that’s the first time I started drinking [vitamins] and taking
vitamins.
The reason they needed somebody is because where I went to work, the
section was new. They had two rooms and the doors were this thick [indicating
thickness]. The room that I was in was where we did all our calculations
[with slide rules], because we made mixtures. Large mixtures. One person
that was working during the day—he was training me—he came
over and he said, “Don’t you have any questions about all
this new equipment, new side of the building?”
I said, “Well, tell me about it.”
He said, “It exploded.”
I said, “Well, what happened to the person [working there]?”
He said, “He exploded too.”
Wright: Oh, now
they tell you.
Garcia: Yes. So
I said, “Well, I’ll be careful.” We had some lamps
[in the other room]. It was irradiation, I think it was ultraviolet
light. They would get hot. They would run cooling water through them,
then once the mixture got through it fell into a tank. We would take
solvents and take the vitamins out once a day and once a night.
We used ether. One day I opened [the 55 gallon tank] up and the ether
came out, because I think it had been under pressure. I took a big whiff
of it, and it knocked me out for a few seconds. I woke up on the floor.
I said, “Oh man.” There was nobody there. I was the only
one there. I said, “Oh boy.” I opened the window, because
it was in the winter. I took gulps of the cold air to wake me up, because
I was still kind of groggy. When I woke up I was kind of groggy. I didn’t
even know how long I was there. I looked at the instruments, made sure
that the things were working right. Now I know why it exploded.
Wright: Yes. So
how long did you keep this job?
Garcia: One year,
and then they laid me off, because they closed down the night shift.
But another incident happened [before I left]. I had never known what
they did at night for the phone. They put a big alarm for the phone.
Since I was kind of jittery with all the stuff [that had gone before],
the phone rang I guess—well, I didn’t know it was the phone
ringing—it was like an alarm. So I got out of there. I went downstairs
and went out and the door closed on me. I couldn’t get back in.
There was nobody there except me. I was the only one running the plant,
because I was running another section and then running mine. I had to
break in. The windows were ground level, half of the windows [were above
ground], because they would take oil for the heater down in the basement.
So I broke in. I didn’t have anybody to call. The chemical processes
were running. There were [specific] times that I had to go in and change
dial [settings]. I said, “I can’t wait until morning or
anything, I’ve got to get in there.” So I managed to open
one of the windows [the one used for refueling the boiler]. I had to
jump down in [the basement].
Anyway I got laid off. I decided to go back to school. I said, “Well,
I still want to be an engineer.” So I went back to school. That’s
when I went another year [to Pan American College] and I ran out of
money and got drafted. [I had told my local draft board that I was already
registered at UT for the semester starting in January [1960], but they
were all Anglos and they didn’t care to help me get a deferment.
I lost all my deposits, including housing deposits.] I’ve only
gotten two telegrams my whole life. One was my girlfriend sending me
a telegram for my birthday, then [in December 1959] “Greetings.”
Wright: “From
your government.”
Garcia: “From
the government.” I’m considered a Vietnam veteran, because
we had advisers. Nobody knew. It was two years before the actual Vietnam
War [officially] started. I learned a lot while I was there [in the
Pentagon]. I had an appreciation of what we could do, secret, but then
I also didn’t like some things that the CIA was doing, of course,
with [Fidel] Castro. Always they were trying to assassinate him. I’m
Latin and he’s Latin. He was doing what he thought best for his
people. They were trying to assassinate him all the time. In fact he
did get shot.
Of course I can say that now. We were all concerned, because at that
time Russia was palsy-walsy with Castro. Well, if they find out that
Castro dies—he didn’t die. They tried everything. They poisoned
his cigars [plus other things I cannot mention]. So when he was ranting
about the CIA, he was right. I didn’t like that, but it was not
up to me. It was policy that the US had [at that time period]. There
was some crazy thing that they made us sign; a paper that we were not
Communist. That’s crazy. I mean if you’re a Commie you’re
not going to say you’re a Communist, but about the only good thing
[about the Army] is that I got to see Walter Cronkite [in the films].
So I knew [what type of person] Walter Cronkite was.
Wright: That’s
a good thing.
Garcia: Yes. I
saw [Cronkite] when we did the [20th lunar landing anniversary celebration]—oh,
that’s another funny story. My wife and I were in line. I don’t
know what we were doing, but we got in line [for something]. Alan Shepard
was in front of us. The guy that played Jose Jimenez [actor Bill Dana],
he was his friend, so he had him there [as a guest]. My wife said hello
to Alan Shepard. We started talking. That guy who was playing Jose Jimenez
came over and said, “How do you feel about me portraying Latins
like that?” I said, “It’s funny.” To me it’s
funny. So I didn’t mind that at all. It was kind of funny that
I saw Alan Shepard crossing the bridge [into Washington in ‘61],
and then [in 1989] I finally met him and my wife met him too, because
he was the first American in space.
Wright: Yes, he
was a hero.
Garcia: The story
with John [H.] Glenn is they didn’t want him to fly again. That’s
why they didn’t give him any more flights. They wanted to protect
him since he was our first American in orbit. So that was the story
on that. They didn’t want him to fly anymore. [Yuri Gagarin (Soviet
cosmonaut, first man in space) died in a plane crash in Russia].
You know that the first black astronaut [candidate] died in a plane
crash, right? [Robert H. Lawrence, Jr., US Air Force Manned Orbital
Laboratory (MOL) program, Group 3.]
Wright: Do you
want to tell us more?
Garcia: He was
here, and I met him. I don’t know what happened, but he crashed
[at Edwards Air Force base in California]. He was the first black astronaut
in training, but you never heard much about him. He crashed and died.
On one of the flights that I was working on, Gemini [IX], the [primary]
crew crashed at St. Louis [Missouri]. I was one of the first ones [in
our ACR team] that heard about it. It was Elliot [M.] See [Jr.] [and
Charles A. Bassett II]. The backup crew had to take over on that flight.
Wright: You’ve
had some really nice memories and then you’ve had some great losses
that you’ve dealt with.
Garcia: Oh yes.
My wife and I were shopping when I heard about the Apollo [1] fire.
Of course a lot of us when we were talking about having pure oxygen
in there said, “That’s not too good.” I met Gus [Virgil
I.] Grissom. I was going from Building 30 to the astronaut building
to do something, or I was coming back and he was already coming back.
He was in his suit. He had been doing some simulations. He said hello
to me. That’s the only time that I’d seen Gus.
I had some dealings with some of the astronauts. [One of] first ones
that went on the maneuvering unit, was [Robert L. “Bob”
Stewart]. I went to Rockwell with him one time to do some of the guidance
and navigation [studies]. I spent some time in the Engineering Directorate.
Like three, four, five months. They would send me wherever they needed
work done. I went to different places, but I always came back to MPAD.
That’s where [E&D (Engineering and Development)] I met some
of the astronauts, in the simulators, because we were checking out the
IGN&C, which was the Integrated Guidance, Navigation [and Control]
system. I wound up going with some of the astronauts to [Rockwell],
because they had simulators at Rockwell also. I would get behind them
when they were doing the simulation. It was pretty neat. You almost
felt like you were landing with the Shuttle. In fact I even tried [landings].
I crashed once, but I landed one; I landed the Orbiter.
They had the view. They had the runway and all the sights around when
you turn. It was pretty good. Of course, then I wanted to be an astronaut.
Eventually eyesight didn’t matter anymore. I had radial keratotomy
done on my eyes too, but that didn’t work either. I mean it worked
[on my eyesight], but it didn’t help me. I applied to be an astronaut
at one time. I did, back when I was younger.
Wright: Not everybody’s
like John Glenn, gets to fly when they’re older.
Garcia: Yes, John
Glenn was old, but he made it [back into space].
Wright: Yes he
did. Well, thank you so much for giving up your afternoon for us and
sharing all these nice memories
Garcia: Oh, it’s
my pleasure. I guess I was glad that I worked [with the space program].
I don’t think I’d have been happy working anyplace else,
even though I worked with the environmental agency [in Texas] 12, 13
years, which was a lot to me. I like the operations, and the technical
side too. So I was glad that I was able to work on both sides. There
were some times that weren’t good, but some times that were. I
let everything roll off my back. I didn’t care.
Wright: It’s
really nice you got to live out your dream from a young child, that
you got to do the things that you really wanted to do.
Garcia: Yes, because
when I was a kid picking cotton I knew that I was going to work somewhere,
that I was going to be a pilot. At that time I didn’t know I didn’t
see that well. [So I settled for aerospace work.]
Wright: But you
got to see a lot, so that’s what’s really amazing.
Garcia: Yes. Yes.
I’m glad that I had a part in it, even though I wasn’t really
recognized that much. It didn’t matter to me, as long as I knew
what I did. I was very happy. My wife wasn’t too happy with the
work, with the amount of work that I did, but we got through that. We
were able to work things out. I know that three or four of my buddies
got a divorce. It was hard on families. You really had to be dedicated
to work that many hours, especially at the beginning. But I think that
was the only way we could accomplish our goal within the time limit
that was set by [President John F.] Kennedy. Oh, I went to his inauguration.
Wright: Did you
really?
Garcia: Well, I
was out there in the snow. My wife and I were out in the snow. It just
happened that that was my day off when I was in the Army. I said, “We’re
going.” So he was Catholic, and we were Catholic, but that wasn’t
the reason. It’s that he had a lot of goals for the country.
Wright: A lot of
hope.
Garcia: Yes. We
went, and at the time my camera didn’t work right. Something happened
to my camera and I was able to take just a few pictures, but we were
out there. He was like that [indicating size because of distance], but
we saw him, we could hear him. We were there. Even though it snowed
all night, I remember. My wife said, “You really want to go.”
I said, “Yeah, this is our only chance.”
Wright: That was
a good decision.
Garcia: I went.
I said, “We’ve got to see him.” I saw his wife too
one time. I was walking by the White House on the outside. She was coming
out in a limo. I saw her. It’s just too bad, all that happened
to him.
Wright: Yes. Well,
thank you.
[End of interview]
Return
to JSC Oral History Website
|