Gemini 7 Technical Debriefing, 1965

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aligned the platform for reentry that we were able to get
enough control out of 3 and 4 to align the platform.
'When
we did this, of course, in order to get yaw control we went
to roll jets - pitch, and that worked fine. I don't have
anything to add to that malfunction.
We heard the solenoids
working. When we went to DIRECT we could feel we did get an
impulse, but we did not seem to get ignition. It sounded
more like a swishing noise. The ground ana.lyzed it and
seemed to think it we.s a problem with the valve seats. I ' m
not certain what it wa.s. I do know that we also tri ed secon­
dary drivers and that didn't help.
I coul d tell that wasn't
the problem when we f i rst heard it.
Lovell
We tried different modes--PULSE, DIRECT, a.nd RATE COMMAND ,
but tb.a.t didn't help.
I think it was mechanical problem.
Borman
RATE COMMAND is a very tight control mode.
I'm very glad i t
was there. I think it is very important to have that for
retrofire.
We also used it for reentry. I think it is a
very good mode.
Of course, it is expensive in .f'uel .
We
used it also for all our thrusting when we were making orbi t
adjust maneuvers.
Lovell
Let me ask a question.
When did you go to RATE COMMAND
during the reentry?
Borman
I went to RATE COMMAND during reentry Lfte:r guidance initi­