As you suggested, I checked with Phil Shaffer – Chief, Flight Dynamics Officer on the C mission – to determine if the flight crew and flight controllers are following the mission techniques we developed. He is completely satisfied that everything is being done properly – at lease those things they are able to observe from…
Category: Reentry
AS-258 RTCC Retrofire Time Computation
One step taken in an attempt to alleviate the RTCC program development problem has been to make major reductions in the area of retrofire time computations. Since these deletions have an impact on the Retrofire Controller’s capability and mode of operation, I felt it desirable to report these things in a memorandum devoted solely to…
“Final” review of Spacecraft (Mission “C”) Retrofire and Reentry Mission Techniques
On January 10 we had a “final” review of Spacecraft 101 (Mission “C”) Retrofire and Reentry Mission Techniques as documented in the logical flow charts prepared by TRW based on a series of meetings we have had here at MSC. These flow charts, which show the operations starting several hours prior to the retrofire maneuver…
Lunar Mission Reentry Mission Techniques meeting
A Mission Techniques Data Priority meeting is scheduled on March 7, 1968, at 9:00 a.m. in Building 2, Room 730, to discuss entry from a lunar mission. This mission phase begins 9 to 10 hours before landing and includes final midcourse maneuvers if required, preparation for reentry, and reentry itself. We expect to pay particular…
Average g
During a discussion about reentry at lunar return velocities the other day, the question came up as to when it was okay to turn on Average g. There was some reason for wanting to do this about one-half hour before arrival at 400,000 feet altitude. We all recognized the inaccuracy which results from accelerometer bias,…
Lunar Reentry Mission Techniques meeting
On February 1 we had another meeting on lunar reentry mission techniques. Almost all of our discussion dealt with the final midcourse maneuver prior to entry. As you know, midcourse maneuvers are currently planned to occur approximately 12 hours after TEI which is near the sphere of influence of the moon and about 15 hours…