The Apollo spacecraft contained a separate inertial guidance and navigation system that enabled its crew to navigate from Earth orbit to the Moon and back. It consisted of three principal parts. One was an inertial measurement unit (IMU), which contained gryoscopes and accelerometers that established a base position and attitude for the craft. The second was an optical unit, which allowed the astronauts to update the IMU's settings based on sightings of stars and planets. The third was a digital computer.

This artifact is part of the Command Module's IMU. It is probably unflown but othewise identical to those used on Apollo missions.

NASA transferred this object to the Museum in 2001.

Display Status

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

Object Details

Country of Origin

United States of America

Type

SPACECRAFT-Crewed-Guidance & Control

Manufacturer

Kollsman Instrument Company

Dimensions

3-D (Controller): 10.8 × 15.2 × 24.4cm (4 1/4 × 6 × 9 5/8 in.)
3-D (Loose Screws): 1.6 × 0.8 × 0.8cm (5/8 × 5/16 × 5/16 in.)

Materials

Aluminum
Synthetic
Glass
Copper Alloy
Coating
Unknown Plating
Textile

Inventory Number

A20010305003

Credit Line

Transferred from the National Aeronautics and Space Administration

Data Source

National Air and Space Museum

Restrictions & Rights

Usage conditions apply
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