Inertial Measurement Unit, Space Shuttle


Display Status:

This object is not on display at the National Air and Space Museum. It is either on loan or in storage.

Collection Item Summary:

This Inertial Measurement Unit, manufactured by Singer, uses a set of gyroscopes and accelerometers to provide the Space Shuttle with velocity and attitude data. This information is fed into the Space Shuttle on-board computers, which generate appropriate signals to control the vehicle in flight.

This unit was flown on eight Shuttle missions between 12 April 1981 and 8 March 1989, including six times on OV-102 Columbia and two times on OV-104 Atlantis.

NASA transferred this object to the Museum in 2006.

Collection Item Long Description:



Inventory Number


Credit Line

Transferred from NASA, Johnson Space Center.

Country of Origin

United States of America


Aluminum, paint, gold plating, plastic, rubber/neoprene


3-D: 27.9 x 55.9 x 24.1cm, 24.9kg (11 x 22 x 9 1/2 in., 55lb.)

Data Source

National Air and Space Museum

Restrictions & Rights

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


SPACECRAFT-Manned-Guidance & Control

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