NASA Johnson Space Center
Oral History Project
Edited Oral History Transcript
John E.
DeFife
Interviewed by Summer Chick Bergen
Richmond,
Virginia –
16 May 2000
Bergen: Today is May 16, 2000. This is an interview with John DeFife
for the Johnson Space Center Oral History Project. The interviewer
is Summer Chick Bergen.
Thank you for allowing us to do this interview today.
DeFife:
You're welcome.
Bergen:
I’d like to start by talking about your early background, your
childhood, and ask if there’s anything in your child[hood] that
led you into aeronautics or into space.
DeFife:
I don’t really think that there was anything in particular.
I was always someone who was interested in tearing things apart and
putting things back together again. I guess my curiosity had always
wanted me to get into something adventuresome, although I’m
not very adventurous as a physical athlete, that kind of stuff. It
was just more of a mental kind of a thing.
I went to school at the University of Pittsburgh and studied aeronautical,
aerospace-type engineering, so I did have an inclination that I wanted
to get involved in something like that. I wasn’t quite sure
that it was going to be Houston, Texas, or anyplace associated with
NASA, but the space program was all very new at that point, at that
period of time, and it was very exciting to me. I still remember laying
awake in bed, dreaming about travel to planets and that kind of stuff.
So it was almost a natural occurrence for me. It was something that
I was very excited about doing.
Bergen:
I’m just curious, when you were in college, [President John
F.] Kennedy made his announcement about sending a man to the Moon.
Do you remember that? Did that have any affect on you?
DeFife:
I do remember that. Of course, I’ve seen it so many times on
television since then, and all of the movies and things that they
make about space, but I do remember that. I’m sure that was
part of the environment that excited me about going to work for NASA.
I will tell you that when I interviewed, I interviewed at Wright-Patterson
[Air Force Base, Ohio] and several other places that were in the aerospace
area. I also interviewed at the Manned Spacecraft Center. I didn’t
receive an offer from them. Several other of my classmates had received
offers, and I was a little depressed that I hadn’t been given
an offer, only to find out later that the paperwork had gotten confused
somewhere, and I really did have an offer sitting there waiting for
me to respond. So it was a no-brainer, basically. It was my first
choice and only choice.
Bergen:
When you finally got there, your first day at work, after you did
all your paperwork, of course, what was that environment like that
you were introduced to, and what were your first impressions?
DeFife:
Well, first off, I was overwhelmed and scared and frightened, and
just excited. At the time, Manned Spacecraft Center was not in the
facilities that they are now. We were scattered all over the place,
out and about the Gulf Freeway. I think my first job was in a set
of apartments called the Franklin Apartments, off of the Gulf Freeway,
near a bayou that I don’t really remember the name of. I was
sort of amazed that all of the stuff that you had seen and heard about
on television, newspapers, articles, and everything, there we were
in the middle of all of this, and we were in apartments and office
buildings, and right around the corner from shopping centers and god-awful
Houston, Texas, with its 95-degree summers. Of course, I was sold
a car up in Pennsylvania, by a salesman who had spent some time in
Texas and told me that we didn’t need air-conditioning, so we
were down there.
It was sort of overwhelming. I was very excited. I didn’t know
what was going to happen. I didn’t know exactly which part of
NASA I was going to get into. I was introduced to my boss, the division
chief at the time, pretty much the first hour or day, I think, that
I was on the job. We were given some choices about where we wanted
to go, and I chose to get into the aerodynamic world. I was happy
that I did that. I spent a lot of time in that group. Made some very
close friends.
Bergen:
You said you went into the aerodynamic group. As your training in
aeronautical engineering, you, I’m sure, designed aeronautics
for planes. What kinds of changes did you have to make in your frame
of mind of doing aeronautics when you went to work on a spacecraft?
DeFife:
Well, it was kind of interesting, because the focus, the thing that
excited me the most in school was really not so much the aeronautical
design, the aerodynamic design, the wind tunnels. I mean, that was
fun, but the thing that excited me the most was the computer simulations.
I took a couple of computer simulation classes, and one of our aerodynamic
classes was to design a flight simulation or performance simulation
of an airplane flying across the country. That was just very exciting
to me. I have the ability to do a lot of mental visualization from
things that I see and numbers and that kind of stuff. It was almost
like I was flying the airplane myself.
When I went to work at NASA, one of the first things that they asked
me to do was to get involved with the computer program that simulated
trajectory flight, so it was almost heaven-sent, if you will. I was
so excited that I was able to do the kind of stuff that I had really
enjoyed doing in school, almost right out of the barrel.
Now, unfortunately for me, they did send me on some wind tunnel tests,
because I was an aeronautical engineer, and they weren’t quite
certain what they were going to do with me. As my career progressed,
I did wind tunnel tests in Tullahoma, Tennessee. I think I had been
working at NASA for a month. My boss came in and said, “John,
you have a couple of choices. Your choices are to go to Tullahoma
for one week, two weeks, or three weeks.” My furniture still
hadn’t arrived. My wife was in Houston. So I chose to go for
one week.
But, you know, it was kind of exciting to go with some of the senior
engineers, or people that were at least three years older than I was.
I think that was the seniority at the time. We were all young and
didn’t know any better, basically. We just didn’t have
any apprehension at all about doing anything. Looking back at it from
the vantage point that I have now of being through thirty-some years
with NASA and five years in private industry, I’m absolutely
amazed at what we did. We were a bunch of young people. There were
some middle-aged managers who had very strong management skills, but
if it weren’t for them, I don’t think we would have been
able to do what we did. It’s just absolutely amazing to me that
we were able to pull off some of the things that we did with such
a young workforce.
The similarities that I see with what I’m doing right now, there’s
a lot of young people in the group that I’m working with right
now, and we’re led by some middle managers who are also fairly
young. There are some differences. I see the struggles that we’re
having here today versus what we were doing at NASA back in the early
sixties, and it’s nothing at all alike. The challenges are similar,
in terms of the work that we have to do, but I think the structure
of the management at that time was so good. I don’t know how
they happened upon it, but it was so good that it allowed us to do
what we did, apparently as easily as we did.
Bergen:
Were there any people you worked with those first couple of years
that you came to NASA that made a big impression on you?
DeFife:
Well, of course my immediate boss is a guy that I worked with for
a long time, Bass Redd, and a guy that he worked with and for, Bruce
[G.] Jackson. In the early days, those were the people that I remember
the most.
Chris Kraft [Christopher C. Kraft, Jr.], I think was the one that,
although I didn’t have a very close working relationship with
him but there were several times when I was asked to give presentations
to him. You stand in the front of the room, you’re sort of trembling,
because you know that Chris Kraft and Bob [Robert R.] Gilruth are
going to be in the room. It turns out that you make your presentations
and everything goes well, and you get some nods and some appreciation
and some affirmation of what you’ve done by some of these people,
and it sort of keeps your motor running. It was in that era, it was
the Chris Krafts and the Gilruths.
Slightly later than the Apollo Program was Bob [Robert F.] Thompson
in the Shuttle Program, and Owen [G.] Morris. Those people, Morris
especially was one that I looked up to. Of course, my boss’
boss’ boss’ boss, Max [Maxime A.] Faget was a great engineer
and very innovative, and Aaron Cohen, that set of management, although
that’s sort of bridging the difference between Apollo and Shuttle.
But I grew up in that environment with those people, so those are
the ones that I remember.
Bergen:
Great men there.
DeFife:
Yes, they are.
Bergen:
When you first came to NASA, you worked in the Gemini Program?
DeFife:
Gemini is when I started. Right. I think Mercury was well on its way,
if not the last couple of flights. I really don’t remember.
It’s sort of a blur. But I started the engineering work that
I was doing in the Gemini Program. I teamed up with another engineer
who was, oh, probably five years older than I was, and we worked on
the Gemini ejection seat aerodynamics and the abort system. That’s
how I basically got into the abort world, both on Gemini, Apollo,
and Shuttle. So that’s sort of the path that I took.
Bergen:
Were you involved in any way in the decisions to use the ejection
seats, or just the engineering aspect of them?
DeFife:
No, I was pretty much sort of a bystander, sort of an engineer-in-training,
while people like Bass Redd and Bruce Jackson and Jim [James G.] Hondros,
while those guys were making the recommendations to project management.
Of course, everything was done through project management, all the
way back from the very beginning, as I recall. There was the parallel
engineering structure to the contractor structure to the project structure.
They were all sort of checks and balances for each other. My inputs
were mostly computer simulations and working late at night, and that
kind of stuff, just getting charts ready and information ready for
the people to make the presentations.
Bergen:
What did you think about that decision, or did you know enough at
the time to have an impression?
DeFife:
I don’t really recall on the Gemini much about the ins and outs
of the decisions that were made. I just remember the wind tunnel tests,
the little models spinning down. They were free tests where we actually
ejected them into a wind tunnel and caught them in a net. I remember
those quite well, and the testing that we did and the simulations
that we did, and made data analyses of the aerodynamics.
Bergen:
Was there any significant event during that testing or in the simulations
that stands out in your mind?
DeFife:
Just my trip to Tullahoma, Tennessee. I can remember that. I can remember
the hotel I stayed in. I can remember that they closed the sidewalks
at about eight o’clock at night, and there was nothing to do.
Yes, it was sort of an interesting first six weeks, six weeks to two
months in the government.
Then they decided to send me to California, to Ames Research Facility
at the wind tunnel test, and that didn’t happen until the winter,
right around Christmastime. So, no, nothing out of the ordinary that
I can remember.
Bergen:
Did you work on any other systems in the Gemini spacecraft?
DeFife:
Just the aerodynamic simulations. We did an awful lot of entry simulations
as well as abort stuff. The ascent trajectory was really mostly done
by some of the more senior people at the time. We did an awful lot
of trajectory simulations of entry. That’s about it. That’s
sort of the parallel throughout Apollo and Gemini, and the Shuttle,
was mostly abort systems as well as ascent and entry trajectory simulations.
Bergen:
As you said, you didn’t really work at NASA during Mercury,
but did you see lessons learned from Mercury pulled into Gemini, in
the areas you worked in?
DeFife:
I don’t really recall. I don’t know that I would have
been able to distinguish those kind of things. If I could remember
some of the meetings and conversations that I had, maybe. Certainly
we learned a lot from the testing that we did, in the types of wind
tunnel tests that we did and the simulations that we did. We learned
about the contractor-government relationship and how each organization
paralleled themselves. I think those were some of the things that
may have carried out into Gemini. It certainly carried over into Apollo
and the Shuttle.
I don’t really recall an awful lot. We had ground-test programs.
I don’t even remember—I guess we didn’t really have
much in the way of launch. Like in Apollo, we had the Little Joe tests
out in White Sands [New Mexico] area. I don’t think we did any
of that in Gemini. I can just simply remember sitting in front of
the television, just watching and listening to the rendezvous and
the docking and looking at the movies afterwards, and that kind of
stuff. It was sort of was kid in the candy store almost.
Bergen:
What’s your first mission that you remember, after you began
work at NASA?
DeFife:
The first flight?
Bergen:
Yes.
DeFife:
Probably some of the early Little Joe tests. They were really unmanned
tests where we had some of our engineers go to the flight facility.
We designed the ascent system as well the abort system, but these
were early Apollo tests. I think from the very beginning it was Apollo
as the first sets of missions that I really actually participated
in on a mission sense, or actually in Mission Control Center or some
of the back rooms, or in preparation for flights, was the real focus
point for what I had done, mission-wise at least.
All of the stuff leading up to that, if I remember correctly, it was
sort of being done in parallel. Apollo, of course, was being designed
at the same time we were flying Gemini, so we were sort of jumping
between flight tests, wind tunnel tests for Gemini, and flights for
Gemini, and all the design and engineering work and wind tunnel tests
for Apollo. So it was sort of all a big blur at that time. We were
working a lot of hours. I didn’t spend much time at home, sort
of missed the early years of my kids growing up, but it was, like
I said, basically a blur.
Bergen:
In Gemini, you used ejection seats, and then in Apollo, they went
back to the launch escape tower. Do you know the reason behind that
decision, or did you see, as an engineer, a reason for that decision?
DeFife:
Well, I think that one is fairly easy for me to remember. The ejection
seats were very limited in altitude and capabilities. Apollo was a
much bigger vehicle. The ascent vehicle was much larger. Ejection
seats would have had to have been extremely powerful and large to
get away from a Saturn-V explosion. They had to have a better abort
system, one that lasted, went much higher in the ascent trajectory.
Ejection seats probably really were never much of a consideration,
I don’t think, in Apollo, because of all the things—well,
in this particular case, I guess on all of the performance limitations
that we learned about in Gemini.
Same with Shuttle. There were days in the early part of the Shuttle
where ejection seats may even have been part of the design. I honestly
don’t remember, but it was really never really seriously considered,
because the explosion potential of the booster was so large that you
just really couldn’t get away fast enough. You would kill the
astronauts in the ejection because of the power, the force that you
needed to get them away from an explosion. So they basically pulled
the command module away from the booster, allowing the command module
for the protection. So I’m pretty sure it was pretty much, almost
without a doubt, the fact that we had such a large booster that kept
them from using the ejection seats.
Bergen:
That makes sense. As far as parachutes and things of that nature for
reentry, were you involved in those, too?
DeFife:
Yes. We didn’t really design the parachutes, although we were
working in the division that had an awful lot to do with the design
and the attachment of the parachutes, and whether there were three
or two or one, and how these parachutes performed during aborts.
Pretty much exclusively, my work on the parachutes started, I think,
with Apollo. I know there were parachutes on Gemini, but I don’t
really recall that I had any involvement with the parachutes on Gemini.
But Apollo, I was intimately involved with the performance of the
parachutes. Not so much the design, but what the vehicle would do
when the parachutes were deployed, after they were deployed, what
kind of trajectory, where would the thing drift.
We were also involved in the apex cover, the ejection of the cover
over top of the parachute deck on Apollo Command Module. That was
one of my early wind tunnel tests where I was sort of the lead engineer
from Houston going out on some of the tests where we were trying to
figure out the aerodynamics of the apex cover coming off, to see if
whether it would come back and recontact the parachutes on top.
By and large, I think that the largest amount of work that I did on
Apollo was with the parachutes. Again, the descent, the impact forces
into the water, could they impact on land, the drift, the large abort
problems that we had with a launch pad abort, with the escape tower
pulling the command module off over towards the water, ejecting, having
the parachutes open and have the wind push it back over land. That
was one of the things that I had to do, me and several others that
worked in this area, to figure out if the winds coming from the water,
if that was the direction they were coming from, they were strong
enough with abort conditions and weight of the command module and
that kind of stuff, to blow the command module back over land. We
were responsible for giving information into the flight director’s
realm of whether the winds were too strong or not for an abort, go,
or no-go decision. That’s pretty much the extent of the parachute.
I remember riding up and down the runways at Ellington [Air Force
Base, Texas] with the tow truck that we had found somewhere, in one
of the hangars where we had different parachute designs. This was
really experimenting with the people who were designing different
parachutes, to see whether those parachutes would be better for the
spacecraft for entering. So we would be driving this tow truck up
and down the runways with this parachute flying off the back of it,
measuring the angles and the drag, and the aerodynamics associated
with it, just to see what we could do.
Parasail, I think, was an early possibility for one of the things
that we were looking at it. One of the guys, I believe [John W.] Kiker,
was the gentleman who was fundamentally involved with the design of
that system. We were all in the same aerodynamic aerospace group of
divisions. We were all sort of loaned out to work for each other.
Bergen:
You talked about working on abort criteria. Did you do that in Gemini,
too, or just once you got to Apollo?
DeFife:
I definitely remember it on Apollo. I don’t really recall doing
much in the Gemini world. Again, I was probably in towards the middle
of Gemini. Pretty much most of the design work, I guess, had already
been done, and I was really working with one of the senior engineers,
a guy by the name of Jim Hondros, on the ejection seats and the abort
system at that time. So I don’t really recall much of Gemini.
Again, it may very well be because I was just sort of awestruck when
I walked in the door, but that’s the best I can remember.
Bergen:
In Apollo, do you know if they took much of the information gained
in Gemini and applied that to Apollo, or if you were still just doing
things from starting point zero on Apollo?
DeFife:
Certainly the ascent trajectory and the entry trajectory, both Mercury
and Gemini, those technologies moved forward into Apollo. All the
wind tunnel testing and the schemes for doing testing, the best wind
tunnel facilities to test them in, what you could expect from the
data, how accurate it was, all that kind of stuff we learned from
Mercury as well as Gemini, and that applied to Apollo. It was really
utilized when we went to Shuttle.
The abort system was different, so the design of the abort trajectory
was different. The abort modes were different, so there wasn’t
an awful lot of carryover from Gemini into Apollo. I’m sure
range safety was part of the stuff that we had learned. We had learned
to work with range safety officers. All of the people at [Redstone
Arsenal, later George C. Marshall Space Flight Center] Huntsville
[Alabama] in the interaction between the command module and the launch
vehicle, I believe—I don’t have a strong memory there
as to whether we had that relationship with Marshall for Gemini or
not. But the flights and the vehicles were so different, the trajectories
were so different, the boosters were so different, the abort systems
were so different, the aerodynamics were so different. Gemini had,
I believe, a floating heat shield. Maybe it was Mercury that had that.
Apollo was all solid and ceramic, and it was designed to come in at
the lunar return speed, so there wasn’t an awful lot.
I mean, all the tools that we had developed, the trajectory tools
and the aerodynamic analysis tools, those all applied, but those were
textbook type of things you develop when you build them. You build
a hammer, and you use it no matter what you’re pounding. It’s
that kind of thing.
So we spent a lot of time retooling the computer programs and gathering
the data, so that we could input the data into the models, and setting
up the models so that they would be different. The number of engines
are different. The thrust-vector control was different on Apollo and
Gemini, but the basic physics were similar enough that you could at
least learn those kind of things.
The abilities that we had or the things that we learned to be the
government relationship with the contractors for the government to
be sort of a check and balance to the contractor in a lot of the stuff
that they did, to be the advocate for the government, I guess, in
challenging ideas that the contractors might come forward with that
might not be in the best money interest for the government and vice
versa. We would take different roles. We worked together as a team.
I think that was learned from Gemini as well, but it really expanded
in Apollo and Shuttle. Shuttle was a prime example of how to make
it work. We did it well. But other than that, I don’t really
remember that the technology of abort system was a carryover from
Gemini to Apollo. The launch and the models were very tied together.
Bergen:
For an engineer coming out of college today, they would look back
at the tools that you had, as far as computers and computational equipment,
and just be amazed that you were able to get done what you got done.
What’s your perspective on that now, seeing how technology has
advanced?
DeFife:
Well, it’s kind of interesting, because I work in information
technology here in Richmond, with a company in Richmond, and I’m
referred to as the token rocket scientist that they have. “This
is not rocket science, but oh, by the way, we have a rocket scientist
sitting here.” Knowing the difference between rocket scientists
and engineering—of course, I’m not really one to challenge
them calling me a rocket scientist—in any event, it’s
kind of interesting because we are in the middle of all the computers
and information technology that my company uses.
The stuff that we were doing with slide rules and punch cards and
trays and old IBM 7090 computers, I mean, you can do with some of
these fancy hand calculators that the engineering students have these
days than we could have ever done with the computers that we had.
It’s absolutely amazing that we did what we did with slide rules
and calculators. I remember the group that we had in the aerodynamic
world, I’ll use the modern term, they were called math aids,
I guess. I’m not really sure exactly whether it was math aides
or math assistants, or something to that effect. In any event, we
had this roomful of people that had these old mechanical—they
were new at that time—these large mechanical push-button calculators
that added and subtracted and multiplied and divide through the moving
of gears. We would bring the aerodynamic data back on tablet form,
almost on handwritten data sheets, that we would take as we went and
read the gauges, and give it to these people and they would calculate
and normalize it and plot it and re-plot it and change the ratios
and the areas and that kind of stuff. These people did nothing but
plot, calculate, punch keys on the calculators, and re-plot. That’s
all they did. Measure, take areas.
I could do more in an hour with [Microsoft] Excel and the desktop
computer that I have today than we did in months in the early days.
But then the requirements for the analysis didn’t seem to be
as complicated as they are. I do more complicated analysis today,
I think, than I ever did in the space program. I don’t know
that it’s because the space program was simple, because it certainly
wasn’t simple. It’s a fact of, you used what you had,
you got what you needed, and you didn’t get any more than that.
Today, you just keep going and going and going and going, and that’s
why people make so much money these days, that they can take advantage
of the technology.
We did what we had to do. We had a lot of people to do it. We spent
a lot of hours doing it. We could have stayed home with our kids had
we had an IBM [International Business Machines] PC [personal computer]
sitting on our desk, that’s for sure. So there’s a vast
difference between the technology today and the technology then. I
just can’t imagine how we did it. I still have my slide rules.
I took them in as a show and tell to show some of the people that
I work with, “Yes, this is a slide rule, and this is how it
works.” It’s kind of funny.
Bergen:
Yet at the time, you felt confident in your calculations and what
data you did have to send people up in the spacecraft.
DeFife:
Certainly. That was one of the benefits of the contractor-government
relationship at the time. We had different tools. We tried to keep
our computer models different, so that if there was some sort of a
generic flaw or a mistake in one, it might be picked up in the other
one, so we developed different tools. We did parallel analyses. The
contractors may have done ten iterations on an analysis and the government
may have done five, but we backed each other up to the point where
we were fairly certain that through enough repetition and enough running
of data, we were fairly accurate.
The math and the physics are the same. It makes no difference what
the machinery is that you use to calculate it, it just took longer.
So you didn’t run as many iterations as you would run today.
I am sure if we had the computing power back in the early sixties
that we have today, the management and the project group would have
been asking an awful lot of "what if" questions. What if
this, what if this, what if this, what if this? We would have spent
a lot of time being much better prepared than we were if something
were to happen, but we would have ended up at the same place, I’m
sure.
Bergen:
Speaking about problems happening, in January of [19]’67, the
Apollo 1 fire occurred. How did that incident impact what you did
as an engineer at that time?
DeFife:
It pretty much brought everything to a stop. I think the impression
and the memory that I have at that point in time, although I wasn’t
directly involved in any of the analysis of the accident or any of
that since it was really an on-the-ground kind of a problem, it just
seemed to slow everything down. Of course, everybody was sad and everybody
was angry, all the emotions that you go through when a failure like
that occurs, but my memory is that it stopped. We just shut down.
Everybody became a lot more conservative in what we were doing. Even
though we weren’t directly related with the flight problems
that they had or the design problems that they had, everybody went
back in and redid everything. You looked at it from different angles.
You worked twice as hard trying to make sure that you had the right
information put in the right way. You relied on cross-checks even
more.
It seemed like things started to slow down within NASA. The enthusiasm
sort of waned for a year or two. There were a lot of difficult times,
I think, at that time. Everybody was really uncertain about what we
were doing in the future and whether we were going to come out of
the Apollo 1 tragedy and be better for it. That’s pretty much
what I recall. It sort of was a blur. We were really off working ascent
trajectories and simulations and lunar trajectories and simulations,
and when it happened, I think everybody who wasn’t involved
just sort of stepped back and let the other guys get into the middle
of it and do the energy stuff that they needed, the investigative
stuff that they needed at the time, so. That’s as I remember
it.
Bergen:
You said everything kind of slowed down for a while. Is there any
certain event that kind of changed the attitude of people, or was
it just gradually changed over time?
DeFife:
You mean back to normal?
Bergen:
Yes.
DeFife:
I guess this is really more speculation. I remember the Challenger
[51-L] problems a lot more vividly than I remember Apollo, but I suspect
what it is, is after we re-engineered the command module, changed
the gas mixture, the people who were working in the peripheral engineering
design, the trajectory people, the aerodynamic people, we didn’t
have an awful lot of new things to do. So we were able to refine everything
that we had done in the past. It seems to me it was almost a matter
of, “Well, okay. We understand what the problem was. We understand
what the design flaws were. We understand where the breakdowns in
communications were. Now we’ve got a job to do, and we’re
set about to go to the Moon by the end of this decade,” and
all this stuff that Kennedy had commanded that we do. Time was just
running out. It was a case of, “Boy, we can’t wait too
much longer before we get going. We’ve done all the redesign,
so now let’s get back on track.” That’s as I remember
it.
It was definitely a different feeling than it was in the Challenger.
Challenger was more of a very slow, methodical, over and over and
over and over again kind of a recovery. And then we flew, and then
it was all just like it was nothing, it was like normal in terms of
the pace. But I think Apollo was more geared towards there was a deadline.
We were struggling to meet that deadline. We knew we could do it,
if we could move beyond the tragedy. Challenger, we didn’t have
that mandate for a deadline, so they were able to stretch things out
a little bit longer before we got back to what I would think would
be normal, if you believe that we ever got back to normal.
Bergen:
So you said that the problems that they identified for the cause of
the fire didn’t really impact your group directly?
DeFife:
No, not at all.
Bergen:
Basically, how did it feel? I’m sure you were glad that most
of your systems never had to be tested out.
DeFife:
Absolutely.
Bergen:
But you got through Gemini and Apollo, and there was really never
an abort.
DeFife:
Right. That was the prayer that we had all the time. It was sort of
a mixed bag, so to speak. You know, you felt that you never, ever
wanted to test the work that you’ve done, but then you never
tested the work that you had done. So you never knew whether you were
really going to be successful or not. But, nevertheless, you never,
ever wanted to do it, because you knew it was going to be pretty traumatic
when it happened. If it was successful at all, it would have been
a lot of work and a lot of luck all combined, I think. I think we
would have had people who survived, but you just don’t know
what quality they would have survived with.
Like you said, the Apollo 1 disaster had absolutely nothing to do
with our systems, our subsystems. It was on the ground. It was electronic,
and inert gas, or gas-breathing mixtures and that kind of stuff, so
it was really more of a kick in the head relative to communications,
and “Yes, we can make mistakes.” And the realization that
we were dealing with human lives. I think it sort of brought that
to us, especially working with abort systems, it made it more difficult
to even think that you might need to use the systems. You hoped that
they never did, because you never, ever wanted to fail again like
that, but that was the extent, I think, of what impact it had on us.
Bergen:
You mentioned that you worked on trajectories, and those obviously
were abort ones. Did you have any involvement in the lunar trajectories
and Apollo 13 or any of that?
DeFife:
No. Well, Apollo 13 a little bit. The lunar trajectories a little
bit, but once we got out of the Earth’s atmosphere, my job was
pretty much done. So the environment that we designed and developed
in was earth atmosphere, on the way up and on the way back. So Apollo
13 and any of the lunar missions, we were always sensitive to aerodynamic
entry, the heating, the trajectory, the recovery, the parachute loads,
the position in the water, or wherever. But that was the extent of
it. We did not do any of the lifeboat—any of the work associated
with getting Apollo 13 people back, other than, again, the entry angle
calculations, but those were pretty mathematical. At the time, there
wasn’t an awful lot of aerodynamics associated with it before
you got into the atmosphere. So all the burn trajectories and all
the angles and all that kind of stuff were pretty much done by another
group, but once we got into the atmosphere, the simulation and the
heating and all that kind of stuff was part of what we did.
Bergen:
The only mission that I was able to identify that might have some
impact on what you did was Apollo 15, where there was a failure of
one of the parachutes. Were you involved in that at all, or the investigation?
DeFife:
I don’t think so. I don’t recall Apollo 15 at all. A lot
of the studies that we did, I guess, were preliminary to what happened
on Apollo 15. We always tested parachute failures, so all the technology
and all the studying had been done prior to the flying of 15, so it
was just a matter of post-flight analysis as to what happened and
what went wrong. That, again, was done by the people who were on the
mechanical engineering side or on the parachute side or on the pyrotechnic
side, whatever the failure was. I honestly don’t even remember
that there was a parachute failure on 15. I obviously believe what
you say, but it just obviously didn’t have any impact on what
I was doing at all.
Bergen:
Looking back over Apollo, are there any missions that you have personal
recollection of, that maybe meant a lot to you at that time?
DeFife:
Well, Apollo 13 was fairly important to us. I worked with Fred [W.]
Haise [Jr.] after Apollo. I didn’t know any of the people, any
of the astronauts, while they were flying or prior to them flying,
but that sort of again brought NASA together. It was sort of a rejuvenation,
I think, of who we were, or a renewal of who we were, that we did
have people that worked as teams.
One of the things in the group that I work in right now, they have
a thing called "Movies to manage by." The Apollo 13 movie
is one of the movies that they use as examples in showing and teaching
to the company people how to manage. What they’re talking about
with the Apollo 13 is crisis management and teamwork and all that
kind of stuff. I’ve sat in on several of the showings of this
movie, and sort of have acted as "I was there" kind of a
person.
In my recollection in Apollo 13, it was nothing at all as dramatic
as the movie made it out to be. I’m sure it was dramatic in
the people who were in the control center and all the people who worked
very hard to simulate and all that kind of stuff, but the people who
were on the outside looking in, we didn’t have any—I mean,
we were totally confident that they were going to be able to do what
they needed to do. That’s how well we worked together.
I do remember Apollo 13 and what it did to us, but the first Apollo
mission, the lunar landing, I remember sitting in the living room
watching the television just like everybody else did. My job was at
liftoff, my job in the command center was basically to calculate drift-back
in the event of a pad abort. Once we got out of that flight range,
two, three thousand feet, then I left and I just went and enjoyed
it like everybody else. So the first few missions of Apollo where
I was actually part of the back-room engineering, I remember those,
and Apollo 11 and Apollo 13. I think that’s probably the last
one, just because it was the end of the program. But we watched every
one of them on television, just like the rest of the world did, just
as excited as we could be.
Bergen:
When you mentioned the last Apollo, Apollo 17, when that was over,
what were your feelings at that time?
DeFife:
Well, I think at that time we were probably into Skylab. Shuttle was
probably being thought about or early designs. My memory is that there
wasn’t any sadness or any kind of a bad feeling about the end
of Apollo. We had done what we were supposed to do. We had done it
several times. It was time to get on and do something different.
I think the biggest memory that I have was about halfway through,
after Apollo 13, 14, 15, in that area, 16, people stopped looking.
Thirteen, if you look at the movie, they weren’t really interested
that much in what we were doing. At the end of Apollo, it became obvious
that we really were going to have to do something special in order
to regain the old Apollo, go-to-the-Moon kind of fervor in the country.
I don’t know that that every happened again. I think Shuttle
did a little bit of it, but we never really regained that public interest,
I don’t think.
So at that point in time, I guess we realized that there was this
lagging interest from the public. The government wasn’t giving
us as much money. There were a lot more fights associated with money,
fights, “Well, Congress cut your budget again,” those
kind of fights. It became to be a little bit more of a business, a
little bit more of a, “Let’s go do it and do it better
and do it cheaper,” and that kind of stuff.
Apollo was kind of different. It was almost a "money is no object"
kind of a program. At least that’s the feeling that I had. In
western Pennsylvania, my mother and father both worked blue-collar
work all of their lives. Spending the amount of money that we spent
on Apollo was sort of something I had never really ever imagined before,
so maybe it really wasn’t free spending, but it sure felt like
it to me. And in hindsight, it still feels like it. You could go in,
you could convince somebody who could make the decision that you needed
to spend this money, and, yes, you went and spent the money. You didn’t
have to go ask permission fifteen times to get the money, and convince
fifteen different sets of people before you got the money. You just
basically knew what you had to do, convince someone that you were
right, and you just went off and did it. That ended, I think, with
Apollo. We never did that. We never had that kind of an atmosphere
ever again, so in a way, Apollo shut that down, but that had gone
away towards the end of Apollo anyhow. We weren’t really getting
an awful lot of money. Certainly the development money for Apollo
was done by then.
Other than those flights, I don’t think there was anything in
particular that I missed about Apollo. It was just time to do something
different.
Bergen:
And after Apollo, Skylab was the next order of business for you. My
research shows that you did some work in Skylab.
DeFife:
I did a little bit. Skylab was sort of a bitter time in my NASA career.
I learned at that time that if you became a specialist in something,
you didn’t get to play with the new toys like the other guys
got to play with the new toys. That’s sort of a very much oversimplification
and it wasn’t anywhere near as dramatic as I’m making
it out to be.
I was the abort subsystem manager. I knew how to do Apollo aborts.
They were flying Apollo-type vehicles. The rest of the guys that I
had worked with, guys and gals that I had worked with, were off working
Shuttle. They were off in the skunkworks, off in the remote parts
of the Johnson Space Center, working and having a lot of fun.
I was back going to the meetings that I had been going to for years,
and talking and making presentations that I had made a dozen times
before. When I asked to get involved with some of the newer projects,
“Well, John, you’re an expert in this field. We need you
back here, so you have to sacrifice for NASA.” It was a case
of almost a little bit of envy for the guys that weren’t quite
as fortunate as I was and weren’t put in positions and worked
their way through positions that I did to get in, so they were able
to go off into something new.
I was pretty much left alone at that time. The people that had sort
of raised me at NASA, always watched out after me, the Bass Redds
and the Bruce Jacksons and the Max [Lovick O.] Haymans and all those
guys, made sure that I didn’t really screw anything up, but
they were busy doing their other things. I was sort of on my own.
It was a good time and it was a bad time. It was good because I was
almost autonomous in the group. I represented the aerodynamic group
in those times.
Everything was sort of routine for the part that I was involved with.
I just had to make sure that we were represented in the board meetings
and the Change Control Board meetings and that kind of stuff, when
they did something that might affect one of our subsystems, so it
was almost, “Okay, I’m here. Tell me something.”
So it was a little boring after a while.
Bergen:
So there weren’t any challenges or changes that you had to incorporate
for your systems.
DeFife:
No. Well, there may have been small ones, but there certainly wasn’t
anything traumatic that I remember.
Bergen:
Eventually, you did get to work on the Shuttle Program.
DeFife:
Right.
Bergen:
What was your first avenue into the area of Shuttle?
DeFife:
I left the aerodynamic group, I believe is the way it worked, I left
the aerodynamic group and went to work in the program office, or in
the Shuttle Engineering Office under Milt [Milton A.] Silveira. There’s
another gentleman that had an awful lot to do with who I was. He was
in the same group, Milt Silveira, Bruce Jackson, Bass Redd, Bill [William
C.] Moseley [Jr.] all those people in that time were in the aerodynamic
group when I first came to work there. I went to work for Milt Silveira
in the program office. He was in the Shuttle Engineering Office, as
I remember the name, and I went to work as an engineer.
It was sort of a strange, something relatively new, I think, for the
way it was organized. It was a program office-like group, pulled out
from within the line organizations in the engineering directorate.
We still reported to the engineering director, Max Faget, but we also
had a dotted line or a soft line in to Aaron Cohen in the Shuttle
world. So we were really serving two masters. We were serving the
engineering directorate and we were serving the program office at
the time. Bob Thompson, I think, was the program manager back then.
So we had a sort of a unique role where we had to be the advocate
for the engineering group, the NASA Engineering Group, be the devil’s
advocate for the program office in regards to their relationship with
the contractors, and be able to get the resources from the engineering
directorate to do the work. That’s how I got involved in Shuttle.
It just so happened that I became our Shuttle abort subsystem manager
in the early days of Shuttle. I guess prior to that, before we really
designed the Shuttle as it exists today, I think it was McDonnell
[Douglas Corporation] and [North American] Rockwell [Corporation]
were the two winning contractors. I don’t remember why they
didn’t settle into one contractor, but those two had left what
we called a Phase B study and were going into the Phase C, which was
more of a detailed design. Their designs were still competing with
each other.
Milt Silveira pulled me aside and said, “John, we think we want
to have Grumman [Aerospace Corporation] and Boeing [Airplane Company],
as well as Lockheed [Aircraft Corporation].” Grumman and Boeing
paired up, and Lockheed was on their own, Lockheed-Martin I guess,
on their own, to do what they called alternate designs. That was interesting.
That was a time when Milt called me in to the office and said, “John,
you want to grow up? You want to grow up in a hurry? Here’s
a job for you to do.”
So he gave me this program manager’s job for this 4-million-dollar
Grumman-Boeing alternate Shuttle design, and then Milt and all the
senior engineers that he had working for him left to go to California
to be with Rockwell and to McDonnell-Douglas, and there I was. I had
to negotiate a contract for 4 million dollars. I had never, ever done
that before. I had one senior contract specialist that was left behind
to help me.
Fortunately, the guys from Grumman who came in sort of took pity on
me. I didn’t know anything at all about contract negotiations.
We were supposed to set the details, technical specifications of the
contract and everything else. Milt was right, I grew up in a hurry.
It was very fortunate that people like the guys from Grumman and Boeing
sort of went easy on me. They really were losers in the Phase B competition.
They lost out to McDonnell and to Rockwell, so they had a vested interest
in seeing that we all succeeded, so I guess we all just sort of jumped
in there together.
In the Shuttle design, Lockheed went off and went on a project of
their own, sponsored and coordinated by the Marshall folks, and the
Grumman-Boeing team was coordinated out of Houston, Max Faget being
the prime engineer, chief engineer, so to speak, of that. That study
ended up very close to what Shuttle is today, the external tanks,
the solid rocket motors, the non-fly-back booster. The Rockwell and
the McDonnell-Douglas designs had fully reusable boosters as well
as fully reusable Orbiters, so it was a plane flying on top of an
airplane. They found that that was so very expensive. The Grumman-Boeing-Lockheed
combination of all of the things, the ideas that were being designed
at that time ended up with the delta wing Orbiter, the external tank,
the strap-on solid rocket motors. There were all kinds of different
designs. Did the motors gimbal, did they not gimbal, that kind of
stuff. How many engines on the Orbiter?
As I recall, the Grumman and Boeing design, which we did in a year,
fourteen, fifteen months, for 4 million dollars really changed the
direction of Shuttle. That was because of Faget’s input and
some real good engineers in the Grumman-Boeing world, and the fact
that at that time, we were looking for a cheaper way to do the Shuttle.
And that’s what we’re still flying today. I mean, I can
show you a model that I got from that contract. You won’t be
able to tell much difference between the way it looks and the way
the current Shuttle looks. You’ll see some distinct differences
that were engineered out when it become the selected system, but it’s
amazingly similar to what we’re flying today. I had a lot to
do with that.
By the time we got doing things very well in the Grumman-Boeing contract,
all these managers, including Mil Silveira, that had been off working
with the Rockwell-McDonnell-Douglas folks started to gain interest
in what Grumman and Boeing were doing. Then they started coming back.
I’ve actually had project meetings called by contract, where
the Grumman and Boeing managers had come back into Houston to give
a presentation to NASA where nobody from NASA showed up, because they
were all in Rockwell and McDonnell-Douglas, doing those reviews there.
That didn’t last very long, when we started to get some good
designs.
Bergen:
So your work on that Shuttle design with Boeing and Grumman was a
little bit of a change from your Skylab days.
DeFife:
Oh, yes. Big time. Yes. I went from not being very excited about what
I was doing, to being in the middle of something that I felt like
I was in 100 feet of water, treading fast and furious to keep my head
up. It got to be very good after a while, after I got settled in to
the routine of working with the guys at Grumman and Boeing. There
was a lot of traveling to Bethpage [New York] and to Seattle [Washington].
It got to be a lot of fun. We really started having a lot of fun,
and I think that was my first taste of real project management life.
Prior to that, I was doing design and engineering and running trajectory
programs. This was a major change in my career, when I became more
project oriented. It made an awful lot of difference, I think, in
the next several years. It carries on today. It’s something
that I like to do. I enjoy managing, so that was my first taste at
it, I think. But I’m excited, because I did contribute in some
way to the current Shuttle design through that contract. Very exciting,
actually.
Bergen:
It was a good design. And then after that, did you become the abort
subsystems manager for Shuttle?
DeFife:
Right. Once the design concept and the configuration was adopted,
and I guess they went through their final competition, and it was
given to Rockwell, then I got back more to the routine engineering
where I was doing abort subsystem managing, subsystem management for
Shuttle. I was doing trajectory simulations, I was working with contractors,
and I was working with the engineering directorate to get the simulations
and everything taken care of. We basically—"we," that
group of people, the people in Rockwell, the people in the engineering
directorate and myself, and a couple of others in our office—really
were fundamentally responsible for the mission, the abort profiles
that we fly today, the early return. Thankfully we’ve never
used that one. The one engine out; the two engines out.
Now, they made it an awful lot more complicated than we ever imagined,
with the different landing sites and the Spain landing site, and the
various stages in the trajectory, but we knew all along, from the
early days, that first-stage abort was going to be almost impossible.
If not impossible, it was going to be very difficult to do. So everybody
hoped that we weren’t going to have one. That’s one of
the reasons we went to solid rocket motors, because once you started
them, they didn’t stop. Except in the case of burn-through,
which is what we had.
Bergen:
I have information that indicates that you worked on solid rocket
project review.
DeFife:
Right.
Bergen:
What did that entail?
DeFife:
I don’t really remember how I moved from abort subsystem manager
into that job. Since we worked for Max Faget in the engineering directorate,
the concept, I think, behind that project review team was pretty simple.
At least it felt simple at the time.
We had this government-contractor relationship where one guy was checking
the other guy. The contractor was doing the primary design and we
were checking, "we," as the Johnson Space Center or the
Manned Spacecraft Center people were doing. Marshall became the prime
designer for the solid rocket motors. They were the prime contractor.
They subcontracted to Thiokol [Chemical Corporation] for the components
of the motor, but the NASA engineers at Marshall were equivalent to
Rockwell when it came to the design. There was nobody who had any
independent oversight into what they were doing.
So Bob Thompson, the Program Director for Shuttle, and Max Faget,
and I guess several other people got together and decided to put this
small group of people together. There were thirteen or fourteen of
us, mostly engineering directorate specialists, people from parachutes,
rocket motor people, trajectory people, aerodynamics people, structural
engineering people, and there was one gentleman, Jim Shaus, from the
program office. The twelve or thirteen of us would fly to Huntsville,
Alabama, a lot, and we became the oversight, the technical oversight.
We had no control over their project decisions or program decisions,
but what we did is, we were the devil’s advocate. We looked
at the calculations that they did and made recommendations and acted
as consultants to Bob Thompson for when he did his program reviews
of their work. We were the NASA people overseeing and giving alternate
points of view to what they were doing. We must have done that for
a year, year and a half, two years, and it just became much more difficult
to do.
It wasn’t an easy relationship to sustain, because it was NASA-to-NASA.
There was no money involved. The NASA-to-contractor relationship is
pretty much held there because NASA controlled the money, and the
contractors had the technical resources to do the job. When it was
Huntsville, NASA, to Johnson Space Center NASA, it was very difficult
to maintain that relationship. We did what we were supposed to do,
and then we went on and did something else.
Bergen:
Did you have any involvement in the Challenger investigation?
DeFife:
Yes. I knew from the studies and the involvement that we had had with
the Marshall people that one of the prime failure modes for solid
rocket motor, especially a segmented solid rocket motor, was a burn-through,
hot gases burning through the case. When the Challenger exploded,
there were several other things that it could have been, but predominantly
we sort of knew at the time that that’s what it was.
I was back in the engineering directorate at the time. I was back
in the aerodynamic flight dynamics group at the time. We were working
Shuttle return White Sands [Missile Range, New Mexico] test—I
don’t even remember the name of it—where the Shuttle flew
on top of the [Boeing] 747, approach and landing test [ALT]. We were
getting prepared for all of that. After the analysis, we had finished
all of that analysis of the approach and landing test. In any event,
we knew at the time what was going on.
As the result of our involvement, the fact that I was then getting
into the computer side of work at NASA, I had several people working
for me who were doing graphics, three-dimensional analysis, getting
ready to tool up for Space Station and that kind of stuff. We had
the tools, the graphics tools, that they needed to help analyze, so
several of the guys that worked for me were pulled off and put on
the Challenger post-accident investigation, applying a lot of the
techniques and the technology that we had been working on up until
that point.
Personally, I didn’t do any analysis on it other than to act
as an advisor in some of the meetings that they had, but they were
pretty smart people. They got the best people at JSC and at Marshall
to work on it. So it was pretty much known what was going on, it was
just a matter of figuring out why it happened, what the conditions
were that it happened in. Those tests and stuff were done pretty much
at Marshall.
Bergen:
You mentioned the approach and landing test.
DeFife:
I guess that came well before Challenger, but I was involved in that,
as well.
Bergen:
Were you involved in any way in the discussions about putting engines
on the Shuttle or letting it land unassisted?
DeFife:
During the approach and landing test, or totally?
Bergen:
Or prior to that, whichever was later.
DeFife:
If I remember correctly, that was part of the discussions and the
designs that we went through with Grumman and Boeing, whether it was
a powered fly-back or whether it was a glider fly-back. I don’t
remember anything about the approach and landing test itself, whether
we were going to do engines on that or not, but I think it all fundamentally
boiled down to it was an external tank on the Orbiter. There was no
propellant left. I think that’s what finally made the decision
is that it was going to be a powerless fly-back. So, yes, we were
involved in that, but only through the Grumman and the Phase D design
after they chose Rockwell.
Bergen:
Is there anything significant, other than what you’ve already
told us, about your work during the Shuttle development and design
that stands out to you, or something unique that you had to deal with,
that was different from your work that you had done on Gemini and
Apollo?
DeFife:
Well, it was a lot more political at the time. There were a lot of
discussions at the time about money. Space Station was competing for
money. There was a lot of discussion, I wasn’t directly involved
in much of it, but I know there was a competition for, “Do we
do the Space Station before we do the Space Shuttle?” and all
that kind of stuff. So we had an awful lot of, “Let’s
go put a presentation together and give it to management,” to
prove this point or prove that point or show this analysis or show
that analysis.
We almost went to the point where we didn’t have direction,
technical direction. We had good managers; it’s just that they
didn’t know what their job was. They didn’t know what
mission we were trying to accomplish, so we sort of scattered into
different directions. So the atmosphere was completely different,
from my point of view. I was working on one piece of this and one
piece of that and one piece of this, and another piece of something
else, and I never really did seem to have the continuity of taking
a project from beginning to end and working on the design and that
kind of stuff, until they made the decisions that they made for Shuttle.
So it was very much a different atmosphere. It started to slow way
down. It started to become much more bureaucratic, much more money-driven,
much more "Let’s fight between the Johnson Space Center
and the Marshall Space Center for project management." Is it
in Washington [DC], or is it independent, or is it Washington employees
working at the Johnson Space Center. It just became something that
was much more political.
I’ve thought about this in the past, and I’ve tried to
figure out what it was. Was it the fact that I grew older and a little
bit more understanding of what was going on, or was it actually that
the program and the environment at NASA changed? I don’t know
that I have a real good answer to that, but I honestly still think
that it was the fact that we changed, the program changed, that it
was not that I understood more and was more sensitive to that kind
of stuff.
There were a lot of times in the Shuttle Program where it wasn’t
a lot of fun to be there, because you were always worried about a
decision coming from somebody at Headquarters or in Congress making
you do something technically, politically, organizationally, that
you didn’t really think was the thing that needed to be done
now. These guys were being paid a lot of money. They were a lot smarter
than I was. They had a lot more information than I did. I’m
not being critical of anything that they did. It just seemed from
my point of view that NASA changed significantly at that point, in
the early days of Shuttle.
After Challenger, it was another change, complete change. I mean,
it went from something where we were trying to save money, to very
extreme pressure, very extreme tenseness to get it done right and
to not screw it up, and to change the way we communicated, and all
the problems that they found. A lot of all kinds of investigations,
people flying to Washington for investigative testimonial. You just
wondered what was going to happen to your job when some of those reports
were finished.
So it became—I don’t want to say—it was sort of
adversarial. It really just didn’t feel very good. It certainly
didn’t feel like it did in the early days of Apollo and Gemini,
when we were actually having a lot of fun. It just became more of
a job at that time.
That’s about all I can remember for Shuttle. The Challenger,
of course, changed everybody’s life. There was some discussion
and some thinking, as I remember talking about it, or hearing about
it, that the way we managed Apollo, Gemini, Mercury, we had different
managers at different phases. One manager would be good at the initial
design and development. Then when that phase was done, they’d
bring in a new high-level manager, and he or she—never she—he
would be good at doing something else and going for that phase. They
always seemed to be able to choose the right manager for the job.
Shuttle came along, and Bob Thompson came in and he stayed through
all phases of Shuttle. Bob was a good manager, I believe, he was a
good project manager, but he took a lot of flak because maybe he wasn’t
as good at design and engineering as he might have been at operations.
There were a lot of personalities that were starting to become very
strong and very vocal at the Johnson Space Center. At the time there
were a lot of politics that were starting. The Chris Krafts had gone
and the Bob Thompsons had pretty much gone. Other people were taking
over.
Bergen:
Your job seemed to change a lot. You spent some time with the Aerodynamic
Data Analysis Program. Tell us a little bit about that. I think you
mentioned it earlier, briefly.
DeFife:
ADAP, Aerodynamic Data Analysis Program, was kind of a strange project.
We had a lot of aerodynamic data that we had to analyze and accumulate.
They were putting together aerodynamic data books. For this particular
flight, this is the set of aerodynamics that you would use, because
it had this configuration and it had this pedigree, and it had this
heat protected system, and it was done at this wind tunnel and it
was done for this flight range. Then we would do more tests, and we
would refine the data, and we would change pieces of that data block.
There were people from all over the country, I guess, the contractors
as well as NASA, who were looking for baseline reference data. “Which
data set do we use?” It was a matter of, if you used a different
set of data from a wind tunnel test that perhaps wasn’t calibrated
as well as another wind tunnel test, and the data was slightly different,
you would get completely different performance from the vehicle. So
they decided that they had to have a set of baseline aerodynamics,
and we had a lot of aerodynamic engineers, aeronautical engineers,
working on what was the best data.
What we needed at the time was a program, a computer program, a software
program, that would allow the engineers to analyze the data, look
at it from different views, combine it with other data, show differences
between one test to another test, refer to the data, come up with
a baseline print and document, and put a set of data charts out there
that had the official data. So the Aerodynamic Data Analysis Program
was a piece of software that was developed by Lockheed as the support
contract to the engineering directorate.
I became the program manager for that. It was struggling in the beginning.
There were some personalities involved, conflicts I guess, more precisely.
It wasn’t doing well. We were having delays and missed deadlines
and that kind of stuff. So I don’t know, for some reason or
other, they chose me. I was interested in software at the time. That
was the beginning of when I was really starting to get into computer
stuff. Since I had spent a lot of time in the program office, especially
on this Grumman-Boeing project, I had the ability and I had the skills,
I guess, that they needed to get in there. Plus I had the aerodynamic
background that they needed from the NASA side. So I got in and we
worked that program. They probably are still using that program, as
far as I know. I don’t really know that they’re not, but
it was a fairly sophisticated set of software coding that we did,
that Lockheed basically did.
Bergen:
What did you do after your work with ADAP?
DeFife:
I really became more specialized in computers. The super mini-computers
were starting to come along. The tools, the slide rules were gone,
and the big 7094 computers or 7090 computers were gone, and we were
running off of UNISYS and larger computers. It was at that point in
time when small companies like Digital Equipment Corporation and Harris
Corporation and several of these companies started to develop competitors
for the large mainframes. They were cheap compared to the IBMs of
the world and to UNISYS, UNIVACs I guess at the time. We needed, we
as an aerodynamic group, needed some computational power of our own.
So we spent a couple hundred thousand dollars, went off and bought
one or two of these things.
They needed someone to manage the operation of those computers, and
that’s basically how I got into computers as a career, managing
the operation of the Harris computers and the Digital Equipment computers.
Plus, at that time, the small desktops were starting to come out.
Underwood-Olivetti was one of the early PCs, I guess, if you can call
it a PC. My god, it was so, I guarantee you I can do a hundred times
more with a computer I can go buy at Circuit City, just a little hand-held
thing, than I could have ever done with that Olivetti. But the technology
grew rapidly, to the point where we had terminals on our desktop,
and networks, all kinds of stuff that was going on. So at that point
in time, after ADAP, my career moved off in a different direction.
The other thing that was going on, I guess, in my life, a little bit
more selfishly, I guess, is I had been there twenty-five years, something
like that. I knew what it was going to be like to retire. I imagined
what it was going to be like to retire from the government and go
to work for Grumman or Rockwell or McDonnell-Douglas, and come back
and do the same work that I had been managing, and I didn’t
know that that was what I wanted to do. I saw that computers were
starting to come alive in the country and in the technology, and how
much difference they made in the way we did our job, and I was excited
about it. That was the other part of the classes that I liked in college.
I got to work with computers, as well. In addition to doing the numerical
simulations, I got to work with the computers that did them. So that’s
the direction I went.
Bergen:
It was like the early space program, because you were doing something
new that had never been done before.
DeFife:
Right. Exactly.
Bergen:
Did it give you that kind of excitement for your work again?
DeFife:
It did. I was basically alone. There were two or three of us, plus
a couple of contractors, that got to do all the fun work. We could
get up at two o’clock in the morning and go to work, and nobody
would ask us why. We were becoming geeks, I guess, if you want to
use today’s terminology. Nothing at all like what they do today.
Yes, it was something that we felt that we were in control. "Give
us some money. Let us go buy the toys." We got to play. We got
to do the kind of stuff. People depended on us to do the job. We were
contributing, and it was sort of different. No politics associated
with it at all; you just go back and work.
I had been told by one of my managers in the aerodynamic group before
I went to the Shuttle Program Office that I would not like the program
office work, and he was right. I went back to work in that group,
to do engineering work. So it’s sort of a parallel with what
I’m doing today, actually.
Bergen:
So was there anything in those last few years that you were at NASA,
any major projects that you would like to discuss?
DeFife:
Well, when I changed and left the engineering directorate, that was
fairly traumatic in my life. Dan [Daniel S.] Goldin [NASA Administrator]
came in and did some turning over the ground and getting rid of the
cobwebs, and trying to convince people to do things differently, I
guess the terms “faster, better, cheaper.” No, there really
wasn’t much.
I went to work with a whole completely different set of people, doing
a completely different job. I moved into central computing information
technology. We supported office automation. It was a whole new line
of work for me. The thing that I carried with me from the engineering
and Shuttle and Apollo days was the management stuff that I liked,
the project management. I did a lot of project management when I was
in that group. Even though I managed people at the same time, it was
pretty much project management, as well as people management. I lost
a lot of technical skills during that period, and that wasn’t
the best thing that ever happened to me. I was maturing, and I was
about ready to figure out how I was going to spend the rest of my
life. Along came early retirement, and I left.
Bergen:
Looking back over your career, are there any moments or events that
stand out in your mind?
DeFife:
Good or bad?
Bergen:
Good or bad.
DeFife:
Yes. There’s a couple. I debated with myself if I was going
to get into this or not.
Bergen:
Could we pause for one moment?
DeFife:
Sure. [Tape recorder turned off.]
I guess the thing that I remember the most, one of the major changes
in my life, is the time probably in the last five years of my career
at NASA, when I realized that I was going to have to leave. Prior
to that, certainly in the early days, I could not see myself doing
anything else. I was so excited about what I was doing and enjoyed
what I was doing, and it was challenging enough that I thought I was
going to do it until I was ninety years old. They’d take me,
bury me, and I’d have my slide rule with me or whatever it was.
But that all changed. All the political stuff that went on in the
Shuttle days never really went away. When they started looking for
money for Space Station and they started reorganizing over and over
and over again, and Headquarters was running it, and Houston was running
it, and this guy was running it and that guy was running it, Dan Goldin
came in and, like I said earlier, started to get rid of the cobwebs
and that kind of stuff. It became obvious to me that NASA had become
very bureaucratic.
When I went to work, I had a choice of going to work in Cleveland
[Ohio]—I guess it’s Lewis Research Center. I had applied,
I believe, to Langley [Research Center, Hampton, Virginia], and I
applied to Houston. There was another one up in the Cleveland area.
What I knew about NASA at the time was it was bureaucratic. The old
NACA [National Advisory Committee for Aeronautics] was bureaucratic.
They may have had some good engineers and did a lot of stuff, but
there were a lot of meetings, a lot of management, a lot of this,
a lot of that.
I went to work for the Manned Spacecraft Center, they didn’t
have any of that. It was a lot of fun. We had a lot of work to do.
We did a good job, but there weren’t a lot of controls that
were put in, that were there.
The controls started to come in. The tighter the money got, the more
the control. It just got to a point where I realized that I was going
to have to leave. I don’t know whether it was truly something
that changed at NASA, but it felt to me like it was no longer a family.
It was a business, it was a job. It was, “Okay, you guys have
been here thirty years. Thank you. Did a good job. Here’s your
retirement book. Here’s your pictures, here’s your plaque,
here’s your retirement party. Now, see you later.” That’s
the feeling that I had about NASA in the last four or five years,
in the early nineties, [19]’90 to ’93, ’94, something
like that.
When I left the engineering directorate, it was fairly significant.
Well, I had spent twenty-some years in the engineering directorate,
doing everything that they asked me to do, only to find out that I
had become so specialized. I had made the same mistake again that
I had made in the early days when I worked on Skylab: I became specialized.
I became so specialized that they reorganized and I no longer belonged
to the engineering group, the people that I had—we spent a lot
of time together. Some of those guys are still there, as a matter
of fact. I communicate with them. But it sort of was a big letdown
for me, something that I had never, ever expected to feel at NASA.
It led me into private life and private industry, only to find out
how bad it can really be, how political it can be, how cutthroat it
can be, how different it is than the government ever was. The government
may be that way today, but the private industry is so much different
than what I was prepared for. At least the company that I work for
now, they’re very young. I am probably one of the oldest people
in the information technology, probably within the top 2 or 3 percent
of age in this group. I don’t consider myself old, but compared
to these people, I have a couple of guys that work for me, when you
add their ages together, it still doesn’t add up to my age.
So it’s this whole feeling of, they’re there to make a
career. “Get out of my way. Money is no object.” It’s
very much like NASA was in the early days, but it’s not anywhere
near as controlled as it was on Apollo and NASA in the early days.
So it’s a lot more—I don’t want to say cutthroat,
because it’s really not that extreme, but NASA, to me, sort
of stuck that up for me. They basically dropped the “I’m
your family." It’s no longer a family operation anymore.
This is a business. It was the beginning of that feeling that I found
in the last five years of NASA that bothered me. Still bothers me.
I follow NASA as much as I possibly can. You don’t get an awful
lot of it in the Richmond newspapers, but you do get enough. There’s
a lot of things that are bad about NASA, a lot of things that are
good about NASA. I sort of miss being there, but I don’t miss
being there at all. It’s one of these kind of things. I’m
glad that I’m not there anymore, because I can imagine how difficult
it must be, with all the politics associated with the way it was going
at the time, but yet all of the bureaucracy that had come in, and
all the power, and all the control, it must be a difficult place to
work. I don’t sense a lot of joy coming from the people that
are still back there.
Bergen:
What do you feel led to that change, looking back?
DeFife:
Money; Congress; the country not spending a awful lot, not paying
a lot of attention. Shuttle, they weren’t even watching Shuttle
anymore. We were watching it in the conference rooms and stuff, but
you didn’t see much. You saw it on the evening news. It’s
just like it is here. I barely know that there was a Shuttle flight.
If I don’t pay very close attention, I could miss the flight
completely. I believe that that’s the way it was back in the
early nineties across the country. That’s the way it was getting.
So Congress and the government wasn’t too interested in giving
us money, and they brought in a new bunch of management. They were
charged with making it better, spending less money, all the “faster,
better cheaper” stuff that NASA is doing today. But I think
the management is missing. I don’t think they have this layer
of managers that can make you feel like you’re part of an organization.
Yes, you had less money to do it on, and, yes, you had to do a better
job of what you were doing. Yes, you had to be more efficient. No,
you couldn’t waste a lot of money. No, you couldn’t do
a lot of false starts, because you had to be more intelligent. It
seemed to me, right before I left, that there wasn’t an awful
lot of direction coming from the middle levels of management at NASA.
I don’t know whether that went all the way up to the top, or
whether it just was the middle management, or whether it was an age
thing, or whether it was me. Kind of hard to tell. Looking back from
where I am now, I don’t think it was me.
Bergen:
If you were to give advice to a young engineer that wanted to go into
some new field, whether it be space or computers, what would that
be?
DeFife:
You mean someone who is in school, that would be perhaps looking for
a job? Actually, I had an opportunity to do that not too long ago.
A friend of mine from high school had a relative that was thinking
about going into aerospace. At the time I advised him no. I didn’t
think it was going to be an easy place to get a job, for one. Things
have changed a little bit. My son’s stepdaughter is graduating
from high school next week. She’s interested in engineering.
She’s working as a once-a-week intern from high school at Goddard
[Space Flight Center, Greenbelt, Maryland], and I can see the excitement
that she has about the things that they’re doing, the Hubble
Telescope stuff, all the things. But it seems to me that what they’re
doing, at least at Goddard in the area that she’s working in,
is they’re trying to take the technology that they’re
developing and they’re trying to apply it to the country. That’s
beginning. I think she’s excited about that.
I don’t think I would have the same advice. I would think I
would advise them pretty much to do what my granddaughter is doing.
She's basically going to look into going to work at NASA if there’s
not a better offer that comes along. If she can find a job that excites
her, I don’t think it’s a bad place to work. Publicly
it’s kind of different now than it used to be, but you know,
we miss that excitement of “The Right Stuff” kind of astronauts.
We don’t have that publicity anymore, but probably it’s
much more worthwhile and beneficial, I think, the work much more rewarding
if you can get into an area like that.
Bergen:
Looking back at your career at NASA, what do you think was your most
significant accomplishment?
DeFife:
Oh, I don’t know. I guess the Grumman-Boeing contract and the
design impact that we had. I got to a point where I enjoyed managing
people a lot, so the mentoring and the managing and the leading and
the career counseling of people that I did, I think was important.
I still feel that way. It’s one of the parts of the job that
I have today that I enjoy a lot.
ADAP was something that I’m proud of. The fact that I got some
awards along the way and I made good money, and I was well respected,
and had a great retirement party, that’s something that makes
me believe that I did contribute. I don’t think it was any one
specific thing, other than the things that I just mentioned, but it
was mostly a lot of little things as I went along, all the people
that I met and the people that I worked with, and the small contributions
that we made. I feel more proud of those than I do of any one specific
thing.
Bergen:
Is there anything you would like to say in closing, maybe that I didn’t
ask you about specifically?
DeFife:
No, I don’t think so. I think I was able to get into the things
that I see today in the job that I have. I was interested in talking
about that a little bit, and I think we did get into that enough.
No, I’m pretty comfortable.
Bergen:
I appreciate you sharing your history with me. I enjoyed it.
DeFife:
Thank you.
[End
of interview]