If it makes sense, I would like to start a campaign to add some actual powered descent into the F mission with an abort about 300 seconds after PDI or whenever it is that the DPS can return the LM to the desired orbit. Could you people please give me a list of the benefits…
Month: December 1968
Some Mission D contingency plans
During a recent D mission rules review a couple of interesting things came up that I hadn’t heard of before. You probably ought to know about:…
C’ Abort Maneuver Overburn Monitoring
In response to a C’ Mission Techniques action item, Rick Nobles informs me that they have established the burn monitoring procedure to guard against overburn during any non-nominal C’ maneuver. As a standard procedure the crew should manually shut down the SPS as soon as the duration of the burn exceeds the nominal value by…
GDC required for TLI
In reference to your November 18 memo to me in which you state that the Gyro Display Coupler (GDC) is required to be operable for commitment to TLI, I would like to assure you that current C’ mission rules reflect this requirement. It is agreed by everyone I have talked to that redundant attitude reference…
F Mission Techniques – LM Checkout
On December 6 we had our first F Mission Techniques meeting dealing with pre-DOI activity. It resulted in a lot of things I never expected, since I thought the timeline and procedures for LM checkout and CSM landing site tracking were pretty well organized and acceptable with just minor tune-up. At this meeting we really…
APS and DPS operational constraints clarification is needed
Procedures for descent abort (and nominal ascent, too) can be made significantly simpler if we assume it is possible to operate the DPS and APS engines to propellant depletion. You have indicated this is an acceptable way to operate the engines both verbally and in writing, and mission techniques have been developed based on that….
D Rendezvous Mission Techniques
This memo is to let you know about some things on the D Rendezvous that have been giving us a lot of trouble. The problem we have been having is associated with the football trajectory and how to exit from it gracefully. It seems like most of the significant mission techniques open items deal with…