Looks like we’re approaching the final chapter in the proceed button story. As I understand it, all manned Apollo spacecraft will have computers wired such that the standby button serves the dual purpose of standby function, as before, and a proceed function duplicating Verb 33 Enter. At least, that is the current intention. Apparently there…
Category: C
Reentry guidance is perfect for S/C 101 regardless of L/D
This memorandum is in response to your question regarding the reentry guidance with low L/D. It was erroneously reported to you in the August 3 MPAD Weekly Activity Report that, although the program could be modified easily to handle L/D as low as 0.2, it probably would not be implemented for Spacecraft 101. Actually, some…
Apparently, S/C 103 may fly one month after S/C 101
At his staff meeting on Monday, George Low made a strong point about uncoupling Spacecraft 101 and Spacecraft 103. Apparently, he feels it is likely that 103 will be launched on a Saturn 5 which implies no pad readiness schedule implications. The LM-2 will be available at the Cape early and, apparently, Spacecraft 103 is…
Another meeting about trajectory control on the first manned Apollo mission (S/C 101)
As you may have heard, we had the first of the Trajectory Control Data Priority Panel meetings last Thursday, August 31. My original intent was to go through the four major exercises on the Spacecraft 101 mission involving the Guidance & Propulsion Systems at that meetint but time did not permit discussion of more than…
It’s SUNDISK for Spacecraft 103
This memo is to make absolutely sure you are aware of the horrible decision we had to make, namely that we must use the SUNDISK spacecraft computer program for Command Module 103 as well as 101. Of course, I am bringing this to your special attention since it has obvious influence on how the Apollo…
Some assumptions about Spacecraft 101 retrofire and reenty procedures
We have recently held several small Trajectory Control Data Priority Working Group meetings dealing with Spacecraft 101 retrofire and reentry. The results are being documented to show how the various guidance and navigation data sources will be compared to one another and used during the mission. During these discussions a couple of basic assumptions have…
Third Trajectory Control Data Priority Meeting for Spacecraft 101
At 9:00 a.m. on December 20, 1967, in Room 966, Building 2, there will be a Trajectory Control Data Priority meeting to review the detailed logical flow charts prepared at MSC defining the retrofire and reentry phase of the S/C 101 mission. Appropriate comments shall be incorporated and they will be reissued as configuration controlled…
Apollo 205/101 reentry procedures
ASPO’s Systems Engineering Division wrote a memo outlining general procedures to be used by the Spacecraft 101 crew following a G&N controlled deorbit burn and also specifying that an automatic reentry would definitely not be performed. You forwarded that memo to me questioning whether our Data Priority Coordination group had looked into this subject and,…