Beschreibung:

EXTENSIVE NOTES MADE BY ARMSTRONG TO REFINE THEIR TRAJECTORY HOME. FLOWN Apollo 11 Flight Plan, page 3-109/3-110, a single sheet printed recto and verso. NASA/MSC, July 1, 1969. 8 by 10½ inches. Extensive notations and checks by NEIL ARMSTRONG. With a Typed Letter Signed by BUZZ ALDRIN. During this period of the mission, Neil Armstrong and the Apollo 11 crew were placing Command/Service Module Columbia into the proper attitude to perform the MCC-5 spacecraft burn. BUZZ ALDRIN'S signed provenance letter reads: "Enclosed with this letter is a sheet numbered 3-109 and 3-110 from the Apollo 11 Flight Plan, Part No. SKB32100080-350, S/N 1001. It is part of the entire document that was carried to the Moon in Command Module Columbia on the first lunar landing mission during July 16 to 24, 1969. This sheet is from the detailed timeline section and covers from hour 150 to the beginning of hour 153 in the mission. The previous day, July 21, Neil Armstrong and I had left the lunar surface after an approximately 22 hour stay and surface excursion. Once we completed rendezvous, we started preparations to return home to earth. Our Transearth Injection (TEI) engine burn had to work. If it did not, Neil, Michael Collins and myself would remain in lunar orbit, never to return. The TEI burn did work and we were able to get several hours rest afterwards. At about 147 hours into the mission, Mission Control gave us a wake-up call. After the post sleep activities, we prepared for the MCC5 (Mid Course Correction) burn number 5 to refine our trajectory back to earth. Mike Collins made the 4.8 second burn while Neil Armstrong recorded the information on page 3-109. Neil checked-off each step when completed prior to and after the burn. He logged the values of: "03, -20.2, 4.8" and wrote in the Burn Status Report box: "0, ?, PAD, .0, .2, .1, .2." The burn accomplished exactly what we and Mission Control wanted, a precise placement to our entry corridor into the earth's atmosphere. Neil's final note of "from prev page" relates to instructions for charging Columbia's battery "A." Page 3-110 shows an illustration of what the earth looked like through our optical navigation equipment. This would help us during a realignment of the nav system after the MCC-5. The pace of events up to that time had been very rapid. During the period outlined on this sheet, we did have a chance to reflect on the accomplishments of the past few days – making the first lunar landing, the first lunar surface excursion, lift-off from the Moon, the lunar orbit rendezvous, and the start of our return home. The flight plan was probably the single most important document related to the success of our mission. It provided a time schedule of crew activities and spacecraft maneuvers to accomplish the first lunar landing. This page has been in my private collection since 1969. I have written on page 3-109: 'Carried to the Moon on Apollo XI' and signed it along the top of that page. I have also written on page 3-114: "Carried to the Moon on Apollo XI" and signed my name along the bottom of that page. Additionally, a copy of the flight plan cover is enclosed."