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Generator Assembly, RTG, SNAP 27

Air and Space Museum

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International media Interoperability Framework
IIIF provides researchers rich metadata and media viewing options for comparison of works across cultural heritage collections. Visit the IIIF page to learn more.
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Object Details

Subcontractor

3M

Manufacturer

General Electric Company

Subcontractor

International Harvester

Summary

The SNAP-27 (System for Nuclear Auxiliary Power) was developed for the US. Atomic Energy Commission by General Electric Company for use by the National Aeronautics and Space Administration during the Apollo Lunar Exploration Program. The SNAP-27 is a radioisotope-fueled thermoelectric power generator designed and developed to operate in the adverse lunar surface environment for periods of greater than one year. The generator and fuel deliver in excess of 72 watts through the lunar night and lunar day to power the ALSEP (Apollo Lunar Surface Experiment Package).
The first SNAP-27 ALSEP was put in place on the moon in the Ocean of Storms on November 19, 1969 by Astronauts Alan L. Bean and Charles P. Conrad. This SNAP-27 developmental unit is one of several that were subjected to the rigors of a simulated lunar environment for a period of greater than one year to verify the adequacy of the flight SNAP-27. It was donated to the Smithsonian in 1970.

Credit Line

Jointly presented by the US Atomic Energy Commission, the National Aeronautics and Space Administration, and the General Electric Company

Inventory Number

A19731201000

Restrictions & Rights

Usage conditions apply

Type

EQUIPMENT-Power Sources

Materials

Beryllium
Non-Magnetic White Metal Alloy (Nickel/Cobalt Alloy and Cobalt/Chromium Alloy)
Ferrous Alloy (Lead/Iron Alloy)
Synthetic Fiber Fabric (Nylon)
Electrical Wiring
Adhesive Tape
Plastic
Paint
Ink

Dimensions

Overall with fins: 46 length × 39.9 diameter cm, 12.8kg (18 1/8 × 15 11/16 in., 28 3/16lb.)

Country of Origin

United States of America

See more items in

National Air and Space Museum Collection

Location

National Air and Space Museum in Washington, DC

Exhibition

Destination Moon

Data Source

National Air and Space Museum

Metadata Usage

Not determined

Link to Original Record

http://n2t.net/ark:/65665/nv9bfd46395-65af-4f24-b411-d72d8b421107

Record ID

nasm_A19731201000

Discover More

A conical shaped command module named Columbia against a black background.

Destination Moon

Image of Saturn 5 guidance and control ring

Guidance, Navigation, and Control

Image of Saturn 5 guidance and control ring

Guidance, Navigation, and Control

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