S-IVB manual steering

This basic spacecraft design deficiency , along with other unknown perturbative effects, have forced us to accept a proposal which worries a lot of us.
Apollo 12 Mission TechniquesSeptember 24, 1969Howard W. Tindall, Jr.
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Crew familiarization and training for TLI

January 15, 1968 - Howard W. Tindall, Jr. Posted on 12 April 2022 by flight

During our many discussions on the need for command module steering of the S-IVB during TLI, a potential crew familiarization. training problem became apparent. Specifically, even if the P-15 CSM TLI Steering is retained, it is not obvious that it will be possible to make the AMS faithfully reproduce the attitude excursions which may be…

No special spacecraft computer programs are to be developed for AS-208B and AS-503

January 10, 1967 - Howard W. Tindall, Jr. Posted on 24 March 2022 by flight

The decision has bean made by the Apollo Program Manager that unique computer programs need not be developed for missions AS-208B (LM) and AS-503 (CM). This decision was brought about due to concern that effort on these programs would affect development of the main line programs. It is certainly consistent with numerous other actions taken…