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Ranger L-440 / 6-440C



The Ranger L-440 (company designation 6-440C) are six-cylinder inline inverted air-cooled aero-engines produced by the Ranger Aircraft Engine Division of the Fairchild Engine and Airplane Corporation of Farmingdale, New York, United States. The engine was mainly produced for Fairchild's family of training aircraft in the mid-1930s.


175hp variant with a 6:1 compression ratio.

180hp variant with a 6.2:1 compression ratio.

190hp variant with a 6.8:1 compression ratio.

200hp variant with a 7.5:1 compression ratio.


Fairchild PT-19/26
Falconar SAL Mustang
Grumman Widgeon
Maestranza Central de Aviación HF XX-02
St. Louis PT-LM-4



Type: Six-cylinder inline inverted air-cooled
Bore: 4 1⁄8 in (104.8 mm)
Stroke: 5 1⁄2 in (139.7 mm)
Displacement: 441 in³ (7.2 litres)
Length: 53.156 in (1.351 m)
Width: 21.954 in (0.549 m)
Height: 33.50 in (0.854 m)
Dry weight: 376 lb (170.7 kg)
Valvetrain: Underhead camshaft
Fuel system: Upright carburetor
Fuel type: 65 octane rating gasoline
Oil system: Full pressure type
Cooling system: air-cooled (pressure type cylinder baffles)
Power output: 175 hp at 2,450 rpm
Compression ratio: 6:1



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