In spite of the feverish activity we have on three swinging missions C, C’, and D, a few of us found a couple of minutes to spend on the G Rendezvous. Some things came out of it that are probably worth reporting:…
Category: Contingency plans
Landing point dispersions given communication loss in lunar orbit
During Chris Kraft’s staff meeting of July 17 there was a long discussion regarding the necessity of a beacon to help the recovery people find the spacecraft. It was pretty well concluded that it was not needed as long as we knew where the spacecraft landed to within several hundred miles. Of course, if the…
C’ Contingency Procedures – Draft Review
A review of the C’ Contingency Procedures Techniques Document is currently scheduled for October 22, 1968. Topics included are:…
Fourth Mission “C” Rendezvous Mission Techniques meeting
As a result of our deliberations today (February 16) I think we have finally determined what to do about delta V residuals on the NCC₁ maneuver. Previously, it had been stated that we would probably trim out small values but, in order to save RCS, would allow larger values to propagate to the subsequent maneuvers,…
Apollo 13 Odds and Ends Meeting
This memo is to notify you of an Odds and Ends Mission Techniques meeting for Apollo 13 on December 5, 1969, starting at 9 a.m., Room 378 of Building 4. Very likely it will be the last big get together we will have for that mission. Generally, subjects to be discussed result from the effect…
“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:…
Two-stage LOI looks good after C’
Just like in other fields of endeavor, it always seems possible to use actual flight results to prove how smart you were before the flight. I am writing this note to crow about how C’ proved we “done right” in planning a two-stage LOI….
Apollo 12 Newsletter
So many things have changed – some subtly, some considerably – that I thought a newsletter might be useful. It is written particularly for those of you who have not been directly involved in preparation for Apollo 12….
Spacecraft computer programs controlling DPS throttling need more changes
On February 14 we had a meeting with everyone at MSC, plus MIT and Grumman, who are interested in the way the spacecraft computer program throttles the Descent Propulsion System (DPS). There has been concern that the throttling programs as currently designed are not adequate for the Descent Orbit Insertion (DOI) maneuver on a lunar…
Third “D” Mission Rendezvous Mission Techniques meeting
We had our third “D” Mission Rendezvous Mission Techniques meeting on January 29. I am afraid it was a rather frustrating meeting for everyone. But on second thought—what’s new?…