Fairchild Ranger L-440-3 (6-440-C5), Inverted In-line 6 Engine

Type: Reciprocating, inverted, in-line, 6 cylinders, air-cooled

Power rating: 164 kW (220 hp) at 2,460 rpm

Displacement: 7.2 L (440 cu in.)

Bore and Stroke: 105 mm (4.125 in.) x 140 mm (5.5 in.)

Weight: 179.2 kg (395 lb)

Ranger Engineering of Farmingdale, New York was a unit of the Fairchild Engine and Airplane Corporation which entered the aircraft engine business in 1925 with the formation of the Fairchild-Caminez engine corporation. Initially a manufacturer of radial engines designed by Harold Caminez, whose earlier career was at the U.S. Army’s McCook Field, Fairchild later became a successful manufacturer of air-cooled in-line aircraft engines. The first model in the 6-440 series was the 130 kW (175 hp) 6-440-C2 (military designation L-440-1), certificated in July 1939. The Model 6-440-C5 (military designation L-440-5) that followed was designed with a higher compression ratio, made possible with the availability of a higher (87) Octane fuel.

Among the military aircraft powered by the Model L-440 series were the Fairchild PT-19, PT-26, and UC-61 aircraft. Among the civilian aircraft powered by the 6-440 series were the Fairchild 24R46 and Grumman Widgeon G-44-A aircraft.