Launch from Cape Canaveral; landing 620 km
southwest of the Bermuda-Islands in the Atlantic Ocean.
The launch was
scrubbed because of a spacecraft computer malfunction, which ended in a hold of
the countdown, and then thunderstorms approached the Cape Canaveral area. With
the computer problem unresolved and the weather deteriorating rapidly, the
mission was completely scrubbed and rescheduled for August 21, 1965.
There were no problems during the first two orbits and the ejection of the
was planned to evaluate the performance of the rendezvous guidance and
navigation system, but then the pressure in the oxygen supply tank of the fuel
cell system dropped down. The spacecraft was powered down and the
exercise was abandoned. Even a premature end of the mission was considered. But
the powering up of the fuel cells was successful and the mission could
continue. On mission day 3 a simulated Agena rendezvous with four different
maneuvers was conducted at full electrical load, using the orbit attitude and
maneuver system (OAMS
). In the following days several thrusters failed,
so the experimental and operational activities continued, but were limited.
Only a few onboard medical tests were continued (the same as
) to show the feasibility of
longer flights and photographical work. Seventeen experiments had been planned
(one was cancelled). But all in all in was a little bit boring and Charles
later lamented, that he had no book to read. The main
goal was now only, to have a new flight duration record, which was successful.
While Gemini 5 drifted, the cabin got cold.
Because of the erratic, and
, the crew was allowed to use one of the two rings
of the reentry control system to position the spacecraft properly more than one
revolution before coming back to Earth. Due to a computing error (wrong
programming), the crew landed 130 kilometers short of the planned landing
point. The short landing caused no problems for the U.S. Navy recovery forces.
There were several carrier in the landing area. A helicopter (from
soon arrived and the crew was brought to the