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Allison V-1710 Engine - Palm Springs
Palm Springs Air Museum visit November, 2008

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Allison Aircraft Engine

Allison Aircraft Engine, Palm Springs Air Museum - California

The V-1710 was built by the Allison Division of General Motors Corporation in cooperation with other GM departments and products and raw material from outside firms and contractors.

The liquid cooled engine meant that the design of the aircraft nose could be more streamlined. The sleek shape could be seen in the P-38 Lightning, P-39 Airacobra, P-40 Warhawk, P-51 Mustang, and the P-63 Kingcobra. This design was in contrast to such planes as the the P-47 Thunderbolt, F6F Hellcat, and the F4F Wildcat, which needed a more rounded nose to accommodate their Pratt & Whitney Double Wasp engines.

One of the drawbacks to the engine seems to be that it had no high-altitude supercharger which limited its speed at higher altitudes. For this reason, the P-51Bs and later Mustang versions began using the Merlin engine built by Packard Company (this was a licenced version of the British Roll-Royce engine).

The following text is from the museum sign:
"The Allison V-1710 was one of the most important large U.S. Aero engines, with over 70,000 engines produced from the time of the first in 1931 to the last in 1948. The engine was produced in large quantities in the early 1940s for several important fighters of WWII including the P-38, P-39, P-40, P-51, P-63, and P-82. "

"The Allison V-1710 was the only liquid cooled U.S. designed engine of the Second World War. The  V-1710 exhibited the advantages inherent with liquid cooled engines, low frontal area and high short-term peak power. The air-cooled engine's advantages are primarily the weight savings and reliability inherent in eliminating the liquid cooling system."

"Type V-12 supercharged liquid-cooled engine Displacement: 17,10.6 inches³ 28 Liters
 Bore: 5.5 inches Dry weight: 1,445 pounds
 Stroke: 6 inches Power output: 1,325 hp
 Length: 98.53 inches Specific power: 0.77 hp.inches ³
 Width: 29.28 inches Compression ratio: 6.65:1
 Height: 41.18 inches Power-to-weight ratio: 0.92 hp/pound "


Also see on our website

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