Preliminary Gemini 4 Crew Debriefing, Part II, 1965

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3
White
McDivitt
use to us.
We knew the stars along our track but
you couldn't see enough of them.
The quickest
way to get the yaw reference was to look down at
the ground.
Once we got the platform caged, aline­
ment was quite simple.
All you had to do was just
hold the needles at zero and the platform alined
itself. Of course you had to have the scanners
on,
The modes--the SEF and the EEF wer e identically
the same except the spacecraft is pointing in
different directions .
You tended to null the
needles by using pulses and just hold the needles
very close to null and the platform alined itself
through the horizon scanners.
Orbit Rate was a
satisfactory mode, I thought.
As a matter of fact,
it was very good.
I liked that Orbit Rate,
Yes, because we finally had a reference where we
didn't have to look out and see the ground. It 's
like having the old altitude indicator back in an
airplane.
The only thing was, we had the wrong
orbit rate in the spacecraft because it was set
for an orbit rate t hat was to take care of, I
think, a 60 nautical mile circular orbit. This
was to take care of the short period of time between
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