The abort system had two basic control modes, “attitude hold” and “automatic.” In automatic, the computer would take over the guidance and start looking for the command module, which was certainly not what the crew intended to do at that moment. While correcting for a minor yaw-rate-gyro disturbance, the astronauts accidentally switched the spacecraft to the automatic mode, resulting in frantic gyrations.
On May 18th 1969, a king, some congressmen, other distinguished guests, and a hundred thousand other watchers waited at scattered vantage points around the Cape area. At 49 minutes past noon, Rocco Petrone’s launch team sent Apollo 10 on its way to the United States’s second manned rendezvous with the moon.
The biggest concern before Apollo 9 was the docking maneuver. In early 1969, at NASA there was little confidence in the docking system. At a January program review, Phillips said that problems encountered during probe and drogue testing worried him…
New York City welcomed the Apollo 8 crew with a ticker-tape parade on the 10th of January, Newark hailed them on the 11th, and Miami greeted them on the 12th during the Super Bowl game. The Astronauts returned to Houston on the 13th for a hometown parade. Incoming President Richard M. Nixon sent Borman and his family on an eight-nation goodwill tour of western Europe. Everywhere they went, the astronauts depicted the earth as a spaceship and stressed international cooperation in space.
Even a perfect reentry would subject the Apollo 8 command module to extreme stress. With Gemini, the capsule re-entered from Earth orbit, but Apollo 8 would re-enter at approximated 25,000 miles per hour. The forces of heat and deceleration would be much greater.
CAPCOM Number 1 (Deke Slayton): Okay. I think you ought to clearly understand there is absolutely no experience at all with landing without the helmet on.
SCHIRRA: And there no experience with the helmet either on that one.
CAPCOM: That one we’ve got a lot of experience with, yes.
SCHIRRA: If we had an open visor, I might go along with that.
CAPCOM: Okay. I guess you better be prepared to discuss in some detail when we land why we haven’t got them on. I think you’re too late now to do much about it.
SCHIRRA: That’s affirmative. I don’t think anybody down there has worn the helmets as much as we have.
SCHIRRA: We tried them on this morning.
CAPCOM: Understand that. The only thing we’re concerned about is the landing. We couldn’t care less about the reentry. But it’s your neck, and I hope you don’t break it.
SCHIRRA: Thanks, babe.
CAPCOM: Over and out
Collins emerged from the spacecraft at dawn. Like Gene Cernan on Gemini IX-A, he found that all tasks took longer than he expected. But he was able to retrieve the package from the exterior of his spacecraft…
From the previous episode, it was decided that the name of Gemini VI would be changed to Gemini VI-a to distinguish it from the originally planned mission whose objective was to rendezvous with the Agena target vehicle. Gemini VII would be launched first before Gemini VI-a and it would be considered the target vehicle effectively replacing the Agena. After Gemini VII lifted off, Gemini VI-a would be transferred to the launch pad and prepared to launch as soon as possible. After Gemini VI-a rendezvoused with Gemini VII, it would return to earth before Gemini VII.