1A-2500 | |
---|---|
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A preserved Packard 3A-2500 on display at the National Museum of the United States Air Force | |
Type | Liquid-cooled V12 engine |
National origin | United States |
Manufacturer | Packard |
First run | 1924 |
Number built | 258 |
The Packard 1A-2500 is an American V-12 liquid-cooled aircraft engine designed by Packard in 1924 as a successor to the World War I-era Liberty L-12.[1] Five aero variants were produced, of which the 3A-2500 was the most numerous. Three marine versions, used most prominently in American World War II PT-boats, the 3M-2500, 4M-2500, and 5M-2500, were also derived from it.[citation needed]
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