Latest on TLI

See list belowJAN 16 196868-PA-T-9APA/Chief, Apollo Data Priority CoordinationLatest on TLI

1. It looks like all we need now is Headquarter's concurrence to eliminate command module steering of the S-IVB during the TLI maneuver. Unbeknownst to me, MIT was directed to stop work on this program (P-15) shortly before Christmas. They estimated that P-15 would become pacing if they did not start working again by January 15 and they have been told not to start. Work going on within MPAD and TRW associated with this spacecraft capability is also being terminated and I recommend RTCC program and associated MCC display requirements be dropped immediately, too. (Of course, all effort required to make the TLI GO/NO GO decision must be continued.)

2. During the many recent discussions of TLI, crew monitoring when the S-IVB is guided by the Saturn system has repeatedly come up. It is our current intention to use the average g program (P-47) from which it will be possible to call up displays of velocities, attitude and attitude rate—the same parameters that are available during the launch phase. This will require a small program change which the Flight Software Branch is coordinating with MIT in preparation of the total PCR. I have been told there is no schedule impact.