Encyclopedia Astronautica
1969.12.01 - Requirement for a simple lightweight Apollo lunar roving vehicle guidance and navigation system

The MSC Flight Crew Operations Directorate submitted its requirement for a simple lightweight Rover (lunar roving vehicle) guidance and navigation system that would provide the following displayed information to the crew: vehicle heading and heading to the LM, speed in kilometers per hour, total distance traveled in kilometers, and distance to the LM.

Requirements were based on the assumptions that the landing area was as well known as for Apollo 12, all traverses were preplanned, accurate photo maps were available, and there was MSFN support through voice communications. The Directorate emphasized that it had no requirements for a display of pitch and roll, X and Y coordinates, or time.

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