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Packard 3A-2500

DAYTON, Ohio -- Packard 3A-2500 engine on display in the Research & Development Gallery at the National Museum of the United States Air Force. (U.S. Air Force photo)

DAYTON, Ohio -- Packard 3A-2500 engine on display in the Research & Development Gallery at the National Museum of the United States Air Force. (U.S. Air Force photo)

Note: This item is currently in storage.

The 3A-2500 is a 12-cylinder, liquid-cooled, direct-drive engine. Packard developed this engine, an improved version of the Packard 2A-2500 used on the Huff-Daland Keystone LB-1 bomber, in the late 1920s. This basic engine also was produced in geared and inverted configurations.

TECHNICAL NOTES:
Displacement: 2,500 cu.in.
Rated rpm: 2,000
Weight: 1,223 lbs.

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