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 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.
In 1936, the U.S. Navy contracted for XV-770-4 engines having a take-off rating of 373 kW (500 hp). Low projected frontal area and inverted installation permitted excellent pilot visibility, attractive for scout observation aircraft. Later changes in the -6 model, incorporated to improve structural and vibration deficiencies, allowed installation in the Curtiss SO3C-1 aircraft.
Improvements in the supercharger and structural refinement begun 1n 1942 resulted in the V-770-8, approved for installation in other SO3C and XOSE-1 aircraft.
The V-770-15 was an Air Force engine, and powered the Fairchild AT-14A and AT-21 aircraft.
This object is not on display at the National Air and Space Museum. It is either on loan or in storage.
Circa World War II
United States of America
PROPULSION-Reciprocating & Rotary
Fairchild Engine and Airplane Corporation
Type: Reciprocating, 12 cylinders, V-type, inverted, air-cooled, supercharger
Power rating: 388 kW (520 hp) at 3,150 rpm
Displacement: 12.6 L (770 cu in.)
Bore and Stroke: 102 mm (4 in.) x 130 mm (5.125 in.)
Weight): 348.4 kg (768 lb)
Overall: 2 ft. 10 1/8 in. × 2 ft. 8 1/2 in. × 5 ft. 8 15/16 in., 768lb. (86.7 × 82.6 × 175.1cm, 348.4kg)
Other: 5 ft. × 6 ft. 10 in. × 4 ft. 2 in. (152.4 × 208.3 × 127cm)
Ferrous Alloy
Non-Magnetic Metals
Uncharacterized Fabric
Adhesive Tape
Graphite
Ink
Paint
A19660460000
Found in the collection
National Air and Space Museum
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