Category: Uncategorised

In our (MSC) attempt to establish the most meaningful flight development schedule for Apollo including, as it must, adjustments to conform with the continually varying mission constraints as well as providing backup missions for contingency situations, many people have legitimate need to know the effect of their ideas and proposals on the readiness of the…

As you know, we are currently figuring on using the AS-278 spacecraft computer programs for AS-503. Ed Copps called me the other day to state that the orbital integration routines in the AS-278 program are scaled such that they will only work for altitudes less than about 5,400 nautical miles above the surface of the…

Ken Cox, Rick Nobles, Charley Parker and I got together to see what could be done about reducing the number of crew displays and inputs associated with the digital auto pilot (DAP). As you recall, the DAP’s require initialization by the crew who specify the spacecraft configuration, choice of RCS quads to be used, dead-band,…

At one time I had sort of expected that we would have to maintain two basic programs for each of the Apollo spacecraft – one for earth orbital operations and one for lunar operations. The former would probably be a refinement of the AS-258 programs and the latter of the AS-504 programs. Further investigation, primarily…

Reference: Memorandum from CA/Director for Flight Crew Operations to FM/Howard W. Tindall, Jr., “AGS Software Documentation”, dated January 18, 1967….

Ken, this is to remind you that you are carrying the ball for getting high rate CDU data on the downlink during DPS burns if you feel it is necessary for postflight analysis of the Digital Auto Pilot. MIT people, particularly George Cherry, are emphatic in stating this data is mandatory for DAP development and…

A call from Mr. C. C. Kraft the other day drew my attention again to the spacecraft guidance system navigation tests planned for the AS-503 mission. He had received indications that the planning for this exercise was rather haphazard. Specifically, he recommended that MIT be brought into the mission planning in this time in order…

We had a fruitful program development plan review meeting at MIT on February 15th. With one exception, everything seems to be moving along nicely now. In fact, much of our meeting was spent on non-technical matters – those associated with administrative management – not so time critical in so far as getting the programs out…

In response to your memo dated January 13, same subject as above, we requested the Guidance and Control Division to carry out a study into the possibility of adding a CMC routine to complete RCS propellant consumed. The results of this study are detailed in the attached memo. As you can see, they have concluded…

This action item was given MIT by FCD. We stopped it….