Packard 1A-2500
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Packard 1A-2500
1A-2500
Packard 3A-2500 USAF.jpg
A preserved Packard 3A-2500 on display at the National Museum of the United States Air Force
Type Liquid-cooled V12 engine
United States
Manufacturer Packard
First run 1924
258
$19,375 (Geared 3A-2500)

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.[]

Applications

Variants

1A-2500
1924, 800 hp. Six built.
2A-2500
1925, 800 hp. 75 built.
2A-2540
? Huff-Daland XHB-1
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.
3M-2500
Marine version[]
4M-2500
Marine version, 1200 hp (895 kW), subsequently upgraded in stages to 1500 hp (1,150 kW).[]
5M-2500
Marine version, larger supercharger, aftercooler, and power output of 1850 hp[]

Engines on display

Specifications (1A-2500)

Data from Aircraft Engine Historical Society[5] and Race With the Wind By Birch Matthews[]

General characteristics

Components

Performance

See also

Comparable engines

Related lists

References

Notes

  1. ^ Gunston 1989, p.109.
  2. ^ "Packard 3A-2500". National Museum of the United States Air Force. 8 June 2015. Retrieved 2020.
  3. ^ "Packard 3A-2500 Geared Drive, V-12 Engine". National Air and Space Museum. Smithsonian Institution. Retrieved 2020.
  4. ^ "Packard 3A-2500". New England Air Museum. Retrieved 2020.
  5. ^ Aircraft Engine Historical Society - Packard Archived 2015-03-25 at the Wayback Machine Retrieved: 30 January 2009

Bibliography

External links


  This article uses material from the Wikipedia page available here. It is released under the Creative Commons Attribution-Share-Alike License 3.0.

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