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FLOWN Apollo 13 LM Contingency Checklist. A single sheet approximately 5.5x8 inches, being a P27 Update card from the LM Contingency Checklist.
FLOWN Apollo 13 LM Contingency Checklist. A single sheet approximately 5.5x8 inches, being a P27 Update card from the LM Contingency Checklist. NASA/MSC, 1970
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Notes: During the life-and-death struggle of the Apollo 13 mission, Fred Haise used this page to record critical flight data for both the Service Module and Lunar Module separation maneuvers. The actual flight notes read: "SM SEP PAD, Following MCC-7 mau (maneuver), R 000 (degrees) P 091.3, Y 000. @ GET 138:10:00, EI - 4 1/2 hrs, execute push of 0.5 fps, 4 jet ullage then execute SM Sep followed by pull of 0.5 fps." These were the real time procedures to separate the Service Module from the still docked Command and Lunar Modules. This procedure and flight configuration had never been performed during the Apollo Program.
After the Mid-Course Correction (MCC) maneuver number 7, the crew placed the CSM/LM configuration in the position defined by the R, P, and Y angles. At the Ground Elapsed Time (GET) of 138 hours and 10 minutes, 4.5 hours before Entry Interface (or entering the earth's atmosphere), the crew "pushed" the SM with the LM's 4 small attitude control engines at 0.5 feet per second (fps), released the SM from the CM/LM, then "pulled" away from the SM at 0.5 fps. This was to insure a safe separation.
The last major flight step prior to entering the earth's atmosphere was to jettison the LM. It had served as the crew's "life boat" during the mission and was the only vehicle capable of placing the entire docked configuration on a proper trajectory to return safely to the earth. The actual notes on the opposite side of this sheet read: "LM SEP PAD, Prior to 141:40:00 (EI - 1:00) manver to following attitude - R 130, P 125, Y 012.4. Corresponding CSM gimble angle - R 291, P 196 Y 045." Other notes are: "2 Bat C current, 30.2 Bat A volt" and the numbers "31021, 25248, 09050." Only one hour before the crew entered the atmosphere, the crew placed the CM/LM docked vehicles in the attitude defined by the R, P, and Y angles. The crew then released the LM, allowing the atmospheric pressure inside the docking tunnel to push the vehicle apart. Haise recorded the current flow of battery C and the voltage of battery A.
This is the first time any flown flight manual material from Apollo 13 has been offered at public auction. These two flight maneuvers were the last critical steps to insure the crew would return to the earth. These steps were developed and tested by ground support crews in mission system simulators during round-the-clock efforts after the Service Module explosion occurred some 56 hours into the flight.
Both sides have been inscribed and signed by Fred Haise with: "Flown to the Moon on Apollo 13, Fred Haise, Apollo 13 LMP." With a Typed Letter Signed by Haise.
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April 2, 2005 12:00 AM EST
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