Preliminary Gemini 4 Crew Debriefing, Part II, 1965

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McDivitt
White
McDivitt
and near the end of the mission, we were down to
12 or 13 amp-hours on unpowered down configuration.
That was as low as I saw it go, down around 12 .
Another thing that we did was that when we weren't
actually planning on transmitting on one of the
radios, we were always putting the mode control
switch to INTERCOM, which would then cut the trans­
mitter off the line.
You could actually see the
ammeter go down a little bit. So I think that
by really powering down the spacecraft and getting
all the non-essential items off the line, we helped
ourselves a lot.
We got this 160 amp-hour cushion
because we really worked at it, not because it
just happened like that.
This takes a little diligence.
Yes , not because it was a miscalculation on the
guys who were planning the flight, but just the
fact that we really worked at keeping the lights
off, keeping the radios off, and keeping those
little bitty things down.
You know, you only
have to save two amps per hour.
We ran on a single
suit fan almost the entire flight, except when Ed
was getting warm when he was sleeping we had to