The Allison V-3420 was a large experimental piston aircraft engine, designed in 1937 by the American Allison Engine Company. In 1937, at the behest of...

Power-to-weight ratio: 1.05 hp/lb (1.76 kW/kg) Related development Allison V-3420 Comparable engines Daimler-Benz DB 601 and 605 Klimov VK-107 Rolls-Royce...

climb, using the most powerful liquid-cooled engine then available, the Allison V-3420. The program was cancelled after only a small number of prototypes and...

Aircraft Development Section of General Motors to be converted to use Allison V-3420-17 liquid-cooled W24 (twin-V12, common crankcase) inline engines. Fisher...

program. They were: Wright R-2160 "Tornado" Pratt & Whitney H-3130 Allison V-3420 Not to be left out, the US Navy selected the Lycoming XH-2470 for funding...

service in this role. In February 1943, use of another engine, the Allison V-3420, was necessary due to poor progress with the Tornado engine development...

1943, the Wright R-3350 engines were replaced with liquid-cooled W24 Allison V-3420-11 by the aircraft division of Fisher Body in support of the XB-39 project...

The Allison Engine Company was an American aircraft engine manufacturer. Shortly after the death of James Allison in 1929 the company was purchased by...

Simultaneously, development of the XH-2470 engine was discontinued. Although the Allison V-3420 engine could be substituted, that required substantial airframe changes...

which would be powered by an unusual geared drivetrain with a single Allison V-3420 engine buried in the fuselage powering twin wing-mounted pusher propellers...