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Packard 1A-2500

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Template:Infobox Aircraft Engine

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.

As a result of Packard's World War II collaboration with British Rolls-Royce to produce the Packard version of the V-12 Rolls-Royce Merlin, engines in the 1A-1500 - 5M-2500 series are often confused with both.

Applications

The marine version of this engine was used in most PT boats as the 3M/4M/5M-2500.

Variants

  • 1A-2500
1924, 800 hp. Six built.
  • 2A-2500
1925, 800 hp. 75 built.
  • 3A-2500
1926, Geared propeller drive option, 800 hp. 175 built.
  • 4A-2500
1927, fitted with a supercharger, 900 hp. One built.
  • 5A-2500
1930, experimental use only, 1500 hp. One built.

Engines on display

Specifications (1A-2500)

Template:Pistonspecs

See also

Related lists

References

Notes

  1. Gunston 1989, p.109.

Bibliography

External links

Template:Packard aeroengines

This article is licensed under the GNU Free Documentation License.
It uses material from the Wikipedia article "Packard 1A-2500".