At the seventh “D” Mission Rendezvous Mission Techniques meeting on March 25, we spent most of our time discussing activity in the football rendezvous, specifically, under what circumstances and how to abort. It turned out that the same ground rules and techniques probably apply equally well to the pseudo-TPI maneuver halfway through the rendezvous exercise….
F mission lunar orbit attitude sequence
This belated memo is to describe the results of our March 10 Mission Techniques meeting on the F mission lunar orbit attitude sequences as well as I can remember them….
Data Priority meetings schedule
In order to get a little bit more orderly in our conduct of the Trajectory Control Data Priority business, it’s evident that we must schedule meetings on a pre-established, periodic basis. Accordingly, the Ascent and Descent meetings will take place on alternate Tuesday afternoons; Rendezvous meetings will be held of Wednesdays, one mission in the…
LM rendezvous radar is essential
A rather unbelievable proposal has been bouncing around lately. Because it is seriously ascribed to a high ranking official, MSC and GAEC are both on the verge of initiating activities – feasibility studies, procedures development, etc. – in accord with it. Since effort like that it at a premium, I thought I’d write this note…
Spacecraft computer program orbital integration
This is just another little golden nugget for your files….
Descent Orbit Insertion (DOI) monitoring and abort procedures are proposed
Something rather interesting came out of Floyd Bennett’s April ?? Descent Mission Techniques meeting that I would like to pass around. It has to do with monitoring the DOI maneuver….
Is display of max g in P-61 any good?
During our lunar landing GSOP review someone commented that the display of max g in P-61 is of no use at all. It was said to be grossly in error for earth orbit reentry and of no value in determining appropriate action during entry from lunar return or following an abort when it is more…
AGS/PNGCS incompatability review – Chapter One
At the January 8 meeting of your CCB I was given the action item of reviewing AGS SCP’s Nos. 34 and 35. Specifically, I was to determine our position on the advisability of making these changes which you tentatively approved at that meeting, and, in particular, we are to satisfy ourselves that the AGS and…
Some things about the Descent Propulsion system as controlled by the LGC
I guess I would have realized this if I had thought about it, but it was a surprise to me (and others) to learn that the Descent Propulsion System (DPS) engine in the LM is not aligned through the cg prior to ignition. I suppose I had assumed that it would be handled the same…
Apollo spacecraft guidance navigation modes currently planned for AS-503 and AS-504
I am afraid there is a bit of confusion as to what navigation modes are being provided in the AS-503 and AS-504 Apollo spacecraft computer programs. I am sure I have contributed to this confusion myself, and the purpose of this memorandum is to try and clear it all up….