On Friday, November 15, we had the last C’ Mission Techniques meeting I expect we will ever have. It was mostly devoted to entry although, of course, some other odds and ends were discussed….
Year: 1968
Is MSFN ranging mandatory for C’?
During our C’ Data Select Mission Techniques meeting a question came up which must be understood and answered prior to the flight. It involves the requirement for being able to obtain MSFN range information during the cis-lunar phase of the mission. It has been said unofficially that ranging is essential to do a decent job…
C’ entry initialization with no communication
Bob Weber, Jon Harpold, and some of their friends got together to work out the procedure for the crew to determine the landing point for targeting the GNCS entry program (P61) in the event of a no communication/return to earth. The procedure is essentially as we laid it out during one of our big meetings…
Descent Aborts – Part III
We have had a couple more Descent Aborts Mission Techniques meetings resulting in substantial progress which I would like to tell you about in this memo, if you haven’t already heard….
LM DPS low level light fixing
I think this will amuse you. It’s something that came up the other day during a Descent Abort Mission Techniques meeting….
D Rendezvous Mission Techniques
This memo is to tell you about the results of the November 25 D Rendezvous Mission Techniques meeting. Except for a number of small clean up items, we spent most of our time talking about how to handle slippage of TPI time and incomplete Insertion and Phasing maneuvers. After an exhausting discussion, I think we…
Proposal to add something nice to the F mission
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…
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…