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Allison V-3420

Aircraft Engines

The Allison V-3420 was a large experimental piston aircraft engine that Allison designed in 1937 at the request of the US Army Air Corps. It was essentially a pair of 12-cylinder Allison V-1710 engines mated to a common crankcase, with the two crankshafts geared to a single propeller shaft, giving 24 cylinders and 3,420 cubic inches. Most parts were interchangeable with those of the V-1710-E and F engines. It offered about one horsepower per pound, excellent for its time, and was intended for projects such as the Douglas XB-19, Boeing XB-39 Superfortress, Lockheed XP-58 Chain Lightning and Fisher P-75 Eagle. Because none of those aircraft saw much production, only about 150 were built.

Facts
Year
1937 2
Cylinder Count
24 1
Classification
Fuel or Cycle
Gasoline / Petrol 1
Connections

Exemplifies

Aviation, Modes
Source Allison V-3420 (Wikipedia)

Of Make

Source List of GM engines (Wikipedia)
In the Other Atlases

Manufactured By

Also in Business Atlas: the manufacturer of this subject.

Source List of GM engines (Wikipedia)Aircraft engines, Piston
Quote, Aircraft engines, Piston
1937–1944 Allison V-3420 (derived from the V-1710)
Sources
1. Allison V-3420 (Wikipedia)
  • Specifications
    Type: 24-cylinder twin-charged double-"Vee" liquid-cooled piston aircraft engine
  • Specifications, components
    Fuel type: 100/130 Octane
  • Exemplifies: Aviation, Lead and applications
    was a large experimental piston aircraft engine
  • Part Of: Lockheed XP-58 Chain Lightning, Applications
    Lockheed XP-58 Chain Lightning
View the Source
2. List of GM engines (Wikipedia)
Aircraft engines, Piston
Quote, Aircraft engines, Piston
1937-1944 Allison V-3420 (derived from the V-1710)
View the Source
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