American V-12 liquid-cooled 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.[citation needed]
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[citation needed]
- 4M-2500
- Marine version, 1200 hp (895 kW), subsequently upgraded in stages to 1500 hp (1,150 kW).[citation needed]
- 5M-2500
- Marine version, larger supercharger, aftercooler, and power output of 1850 hp[citation needed]
Engines on display
Specifications (1A-2500)
Data from Aircraft Engine Historical Society[5] and Race With the Wind By Birch Matthews [citation needed]
General characteristics
Components
Performance
See also
Comparable engines
Related lists
References
Notes
- ^ Gunston 1989, p.109.
- ^ "Packard 3A-2500". National Museum of the United States Air Force. 8 June 2015. Retrieved 26 June 2020.
- ^ "Packard 3A-2500 Geared Drive, V-12 Engine". National Air and Space Museum. Smithsonian Institution. Retrieved 26 June 2020.
- ^ "Packard 3A-2500". New England Air Museum. Retrieved 26 June 2020.
- ^ Aircraft Engine Historical Society - Packard Archived 2015-03-25 at the Wayback Machine Retrieved: 30 January 2009
Bibliography
- Gunston, Bill. World Encyclopedia of Aero Engines. Cambridge, England. Patrick Stephens Limited, 1989. ISBN 1-85260-163-9
- Aircraft Engine Historical Society - Packard Engines
- Matthews, Birch. Race With the Wind. Osceola, WI. MBI Publishing, 2001. ISBN 0-7603-0729-6
External links
Wikimedia Commons has media related to Packard 3A-2500.