This note is to inform everyone that the AS-502 spacecraft computer program ropes will be made precisely the same as those for AS-501. Specifically, it is MIT assembly Solarium 55. You recall Solarium 54 was our original AS-501 A-release, but it was necessary to make a modification in one of the rope modules to correct…
Category: A
Progress Report – RTCC program development reduction – Review of requirements for the AS-502 mission
On February 17th we held a meeting in our continuing effort to reduce the program development demands on the Real Time Computing Complex. In this instance, a group of FCD, FSB and MPAD people reviewed requested modifications to the AS-501 RTCC program in preparation for the AS-502 mission. I could briefly summarize the results by…
Apollo Spacecraft Computer Program Schedule
Since last week I promised to start quoting some delivery dates, here goes. We are currently planning release of the flight programs for rope manufacture as follows:…
Small program change needed in the AS-501/502 AGC program
In the course of development of the AS-206 computer program at MIT, a coding error was discovered which was immediately recognized as being common to the AS-204 and AS-501/502 programs. It is a scaling error, if you know what that means, which imposes the operational constraint of not operating one of the integration programs (i.e.,…
New/old platform for AS-501
Cline Frasier told me today that the platform in Spacecraft 107 (that is, AS-501) has been replaced again by the one that was taken out several weeks ago. Apparently, there was an intermittent problem in one of the accelerometers. I believe Cline said they have replaced the Z-gyro. This change should be beneficial in terms…
Greater dispersion at entry on AS-501 with the new IMU
You have expressed concern about the somewhat poorer performance of the new platform in Spacecraft 017. While at MIT last week Dan Lickly and I spoke to John Miller about this. John says the component which contributes the most to dispersion in flight path angle at the entry interface is the Y gyro, as you…
Spacecraft computer program status for AS-501
This memorandum is to give my impression of what went on during the meeting MIT on September 12, 1966, regarding the AS-501/502 spacecraft guidance computer program. Primarily I would like to describe the status of this program as we see it now….