System Course Title Duration Hours

1. Structures and Mechanical Systems 6

2. Electrical Power Systems 10

3. Instrumentation 6

4. Crew Systems 6

5. Communications 6

6. Environmental Control 12

7. Propulsion 12

8. Guidance, Navigation and Control 24

Environmental Familiarisation: For experienced aircraft pilots (as well as for the three recently qualified scientist-astronaut ''pilots''), the environmental conditions of space flight are unique in that they are more extreme or of longer duration than nominal aircraft flying. These environment conditions also have an effect on the performance of the astronaut relative to their familiarity with the condition. To help prepare them for this, each astronaut was exposed to the environmental conditions of space flight: weightlessness, launch and re-entry accelerations and decelerations and pressure suit familiarisation.

Weightlessness (4 days): Using a US Air Force KC-135, each astronaut was exposed to approximately thirty seconds of ''zero-g'' per parabolic trajectory with between eighteen and twenty parabolas flown on one flight. There were twenty-four astronauts flying in groups of three and two flights per day for four days, so eight flights were scheduled. (24-27 January 1967 - one day per man).

Launch and Entry Acceleration: Using the centrifuge at MSC, four to six familiarisation runs for each astronaut (in ''crews'' of three to simulate an Apollo flight profile) were used to simulate expected acceleration profiles of the Saturn 1B Earth-orbit launch, as well as selected launch aborts and orbit re-entry. These runs gave the astronauts familiarity with the forces encountered during these mission periods and an understanding of the accelerations, as well as an appreciation for their operational capability during these phases of the mission. As they used an early Apollo centrifuge crew configuration, it did not have control capability, so crew station angular positions and acceleration profiles were pre-programmed into the centrifuge central computer. As there were also no active controls or instrumentation, except for a "g" meter and an event timer, a running commentary on the mission events and crew tasks was given to the crew over the radio link as the run progressed. The crew were then required to make the proper motions to simulate these tasks on the basis of the commentary. Each crewmen received two sessions separated by at least twelve hours, with three training periods (09:00, 11:00 and 13:30 hrs) per day scheduled (7-15 November 1966).12

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