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Abort Electronics Assembly, Apollo, Lunar Module


Display Status:

This object is on display in the Human Spaceflight exhibition at the Steven F. Udvar-Hazy Center in Chantilly, VA.

Collection Item Summary:

This device, designed by TRW, Inc., is a backup to the Apollo Guidance Computer that was installed on the Lunar Module. If needed, it was to perform only critical guidance and control functions in case of a failure of the primary system. It may have been one of the first spacecraft systems to use "strapdown" gyro technology. This unit is unflown.

The Abort Guidance System was activated at least twice during the Apollo program: on the Apollo 10 and Apollo 13 missions.

Donated by TRW to the Museum in 1973.

Collection Item Long Description:

Data Source

National Air and Space Museum


Do not reproduce without permission from the Smithsonian Institution, National Air and Space Museum


Credit Line

Gift of TRW.


Case: metal with electronic parts.


3-D: 61 x 20.3 x 14cm, 14.8kg (24 x 8 x 5 1/2 in., 32 5/8lb.)

Country of Origin

United States of America


SPACECRAFT-Manned-Guidance & Control

Inventory Number