See listMAY 17 196767-FM1-38FM/Deputy ChiefReduced L/D presents a spacecraft computer program problem
This note is to help unsure that the word gets around regarding reduced command module reentry L/D. MIT has heard rumors that the L/D may be reduced to a value of .25 and emphasized during our program development plan meeting that they are fairly certain the present spacecraft com- puter program formulation will not handle that. The current formulation is designed to handle a minimum L/D value of .30 and, although they do not know how far this limit can be extended, they feel certain major rework will be required for .25. This is not a new discovery. Our reentry experts in MPAD have been saying the same thing for some time.