Roosa

Lind

Lousma

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1974 July. (Cancelled flight). Crew: Roosa, Lind, Lousma. Program: Apollo. Apollo 20 was originally planned in July 1969 to land in Crater Copernicus, a spectacular large crater impact area. Later Copernicus was assigned to Apollo 19, and the preferred landing site for Apollo 20 was the Marius Hills, or, if the operational constraints were relaxed, the bright crater Tycho. The planned December 1972 flight was cancelled on January 4, 1970, before any crew assignments were made. Work was stopped on LM-14; CSM-115A was studied for use on a second Skylab mission; Saturn V 515 was earmarked for use on Skylab. The remaining Apollo missions were stretched out to six-month intervals, which would have placed the Apollo 20 flight in 1974 had it not been cancelled. No crew was formally selected. In the normal three-mission-ahead crew rotation, a Conrad-Weitz-Lousma would have been named. Instead they were transferred to the Skylab program. At one time it was considered possible that Mitchell would command the crew in place of Conrad. But it has also been stated that since both Conrad and Mitchell had been on the lunar surface, Stuart Roosa would have been commander. Astronaut Lind was considered by Slayton as next in line for a chance to land as lunar module pilot. So the most likely crew would have been Roosa (Commander); Lind (Lunar Module Pilot); and Lousma (Command Module Pilot).

• 1965 Dec 15 - Proposal for four additional Apollo LEMs  Spacecraft: Apollo LM.

  Grumman was invited to provide NASA with a cost-plus-incentive-fee proposal to provide four LEMs subsequent to LEM-11, with the proposal due at MSC by the close of business on the following day. The proposal should be based on a vehicular configuration similar to LEM-11 in all respects, including supporting activities, contractual provisions, and specifications applicable to LEM-11. The required shipment dates for the four vehicles would be December 13, 1968, February 11, 1969, April 11, 1969, and June 10, 1969, respectively.

• 1969 Jun 11 - Task force for Apollo hardware development  Spacecraft: Apollo LM.

  In establishing a task force for hardware development, Apollo Program Director Samuel C. Phillips stated: "We have recently been given . . . approval on our plans for continuing the lunar missions through Apollo 20..." Additional Details: Task force for Apollo hardware development.

• 1969 Jul 29 - Tentative planning schedule for the Apollo program  Spacecraft: Surveyor, Apollo Lunar Landing.

  NASA issued a tentative planning schedule for the Apollo program:

  Flight	Launch Plans	Tentative Landing Area
  Apollo 12	November 1969	Oceanus Procellarum lunar lowlands
  Apollo 13	March 1970	Fra Mauro highlands
  Apollo 14	July 1970	Crater Censorinus highlands
  Apollo 15	November 1970	Littrow volcanic area
  Apollo 16	April 1971	Crater Tycho (Surveyor VII impact area)
  Apollo 17	September 1971	Marius Hills volcanic domes
  Apollo 18	February 1972	Schroter's Valley, riverlike channel-ways
  Apollo 19	July 1972	Hyginus Rille region-Linear Rille, crater area
  Apollo 20	December 1972	Crater Copernicus, large crater impact area

• 1970 Jan 4 - NASA canceled the Apollo 20 mission and stretched out the remaining seven missions  Spacecraft: Apollo Lunar Landing. Launch Vehicle: Saturn V.

  NASA had canceled the Apollo 20 mission and stretched out the remaining seven missions to six-month intervals, Deputy Administrator George M. Low told the press in an interview after dedication of the Lunar Science Institute (next to MSC in Houston). Budget restrictions had brought the decision to suspend Saturn V launch vehicle production after vehicle 515 and to use the Apollo 20 Saturn V to launch the first U.S. space station in 1972.

• 1970 Jan 7 - NASA issued instructions for deletion of the Apollo 20 mission from the program  Spacecraft: Apollo LM.

  NASA issued instructions for deletion of the Apollo 20 mission from the program. MSC was directed to take immediate action to:

  • Stop work on LM-14 and determine its disposition.
  • Delete requirements for the Apollo 20 spacesuits and portable and secondary life support systems.
  • Determine disposition of CSM 115A pending a final decision as to its possible use in a second workshop mission.
  • Reevaluate orbital science experiments and assignments and prepare proposed revisions.

• 1970 Jan 7 - The Apollo 20 mission was deleted from the program. 

  MSC was directed to take some immediate actions including determination of the disposition of CSM-115A, pending a final decision as to its possible use in a second Workshop mission.

• 1970 Jan 7 - The Apollo 20 mission was deleted from the program. 

  MSC was directed to take some immediate actions including determination of the disposition of CSM-115A, pending a final decision as to its possible use in a second Workshop mission.

• - 1974 July - Apollo 20 (cancelled)  Crew: Roosa, Lind, Lousma. Spacecraft: Apollo CSM.

  The preferred landing site was the Marius Hills, or, if the operational constraints were relaxed, the bright crater Tycho. The flight was cancelled on January 4, 1970, before any crew assignments were made. The most likely crew would have been Roosa (Commander); Lind (Lunar Module Pilot); and Lousma (Command Module Pilot).