The question of using LM propulsion in a LM/CSM configuration has recently been the subject of detailed review. Control system studies, both inhouse and at GAEC, have contributed to that review. Because of the current interest in the LM propelled docked configuration and its guidance and control systems, a review of the studies performed in support of the system development effort has been made. The present memorandum is intended to summarize the results of those studies….
Month: May 1968
Since I was surprised at what Gunter Sabionski told me and, in turn, almost everyone I have told has been surprised, perhaps you too will be surprised to learn that the least significant increment output by the CSM accelerometer is equivalent to 0.2 fps! (The LM is considerably better, the value being 0.03 fps per…
LM3 AGC will use Kearfott accelerometers
Bob Gardiner announced at George Low’s April 6 staff meeting that there are no Abort Sensor Assemblies available with Bell accelerometers. On the other hand, one is available with the Kearfott Group accelerometers – ahead of schedule. It is their intention to use this one on LM3….
Visit to RCS, Camden, New Jersey, May 3, 1968
I visited RCA, Camden, New Jersey on Friday, May 3 to review an engineering model demonstration of the VHF Ranging System. The test setup included the components for the Command Module (CM) and the Lunar Module (LM) located in two adjacent screen rooms. Signal strength between the two installations could be varied by changing a…
“C” rendezvous open item clean up
Paul Kramer, Phil Shaffer, Duane Mosel, Ed Lineberry, and myself spent the morning of May 7 trying to close our major open items remaining on the “C” mission rendezvous. These items were:…
No special visual reference will be provided for the final transearth midcourse correction maneuver
On May 7 we reviewed the need for an RTCC program change to provide a special visual reference for the crew during the last transearth midcourse correction maneuver on a lunar mission. We concluded it is not needed and that no new programming or displays are required….
Aborts from powered descent on the lunar landing mission
We spent the entire May 8 Ascent Data Priority meeting discussing mission techniques associated with aborts from powered descent on a lunar landing mission. This discussion led to some pretty simple procedures which are outlined in this memo. They are based on some assumptions which I’ve also listed below. If you feel that they are…
Spacecraft computer program newsletter
I learned some things at MIT last week that seemed interesting enough to justify this note. Of course, it deals primarily with the spacecraft computer programs and their influence on the mission techniques we are developing….
Progress Report on Mission Techniques
Since we have not been able to get together this year, except for our short discussion prior to the George Mueller briefing, I thought it might be a good idea to send you a little informal Mission Techniques progress report. I guess our lack of contact is an implicit vote of confidence which I hope…