Jul 01

Space Rocket History #342 – Apollo 15 – Lunar Orbit & Landing

Craning to look through the triangular window for a glimpse of the land ahead, Scott saw no sign of Hadley Rille.

Jun 17

Space Rocket History #341 – Apollo 15 – Serious Problems

The SPS engine was used for all the future burns.   It was the astronauts ticket home.  Any doubt as to whether it could fire raised the question as to whether the mission could continue.

Jun 03

Space Rocket History #340 – Apollo 15 – Climb to Orbit

For Scott all feelings were forgotten. All senses except sight were subordinated. All Scott’s concentration was focused on hearing information from Irwin, Worden and Mission Control about the status of the spacecraft and the Saturn V.

May 20

Space Rocket History #339 – Apollo 15 – The Launch

The last face they saw was Guenter’s, smiling and waving an enormous crescent wrench. Then the heavy hatch closed with a deep thunk.

May 06

Space Rocket History #338 – Apollo 15 – CDR Dave Scott Part 2 & The Postal Covers Incident

As Command Module Pilot for Apollo 9, Scott’s responsibilities were heavy. The Lunar Module was to separate from the Command and Service Module during the mission; if it failed to return, Scott would have to run the entire spacecraft for reentry, normally a three-man job.

Apr 22

Space Rocket History #337 – Apollo 15 – LMP Jim Irwin & CDR Dave Scott

Dave Scott showed incredible presence of mind during the unexpected events of the Gemini 8 mission. Even in the middle of an emergency, out of contact with Mission Control, he had thought to reenable ground control of the Agena before the two vehicles separated. This allowed NASA to check the Agena from the ground and use it for a subsequent Gemini mission. Scott’s competence was recognized by NASA when, five days after the brief flight, he was assigned to an Apollo crew and was promoted to lieutenant colonel.

Apr 08

Space Rocket History #336 – Apollo 15 – Introduction, Crew Selection & CMP Al Worden

The twelve day Apollo 15 mission was scheduled to launch on July 26, 1971.  It would be the fourth United States human exploration of the Moon. As compared with earlier missions, Apollo 15 would double the time and extend by a factor of ten the range of lunar surface exploration.

Feb 08

Space Rocket History #196 – Apollo 10 – Lunar Module Out of Control

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.

Apollo Lunar Module

CM viewed from LM after separation

LM Topsy-turvy during staging

Lunar Module Staging Video