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- Fairchild Ranger V-770-8 (SGV-770C-2), Inverted V-12 Engine
Fairchild Ranger V-770-8 (SGV-770C-2), Inverted V-12 Engine
Object Details
- Physical Description
- Type: Reciprocating, 12 cylinders, V-type, air cooled
- Power rating: 410 kW (550 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: 347 kg (765 lb)
- Summary
- In 1936, the U.S. Navy contracted with the Ranger Division of the Fairchild Engine and Airplane Corporation for four XV-770-4 engines with a take-off rating of 373 kW (500 hp). Because of its low projected frontal area and inverted installation, permitting excellent pilot visibility, the design was considered attractive for installation in cruiser- and battleship-based scout observation aircraft, and scheduled for installation in the Vought XSO2U-1 and Curtiss XSO3C-1 aircraft. The -4 model, because of certain structural deficiencies and unsatisfactory torsional vibration characteristics, proved unsatisfactory for service use. Design deficiencies required extensive changes resulting in the -6 model, contracted for production in 1940 for installation in SO3C-1 aircraft.
- In 1942, the Navy initiated further development to improve the power and altitude performance. Improvements including structural refinement and improved supercharger resulted in the V-770-8. This engine model was approved for production for installation in later series Curtiss SO3C airplanes and XOSE-1 aircraft.
- Credit Line
- Transferred from the Department of the Navy, Bureau of Aeronautics
- Data Source
- National Air and Space Museum
- Date
- Circa 1941
- Inventory Number
- A19520107000
- Manufacturer
- Fairchild Engine and Airplane Corporation
- Restrictions & Rights
- Usage conditions apply
- Type
- PROPULSION-Reciprocating & Rotary
- Materials
- Aluminum Alloy
- Ferrous Alloy
- Oil
- Grease
- Paint
- Rubber
- Natural Fiber Thread
- Plastic
- Silica Gel
- Copper Alloy
- Dimensions
- 3-D: 167.6 × 73.7 × 88.9cm, 347kg (5 ft. 6 in. × 2 ft. 5 in. × 2 ft. 11 in., 765lb.)
- Country of Origin
- United States of America
- See more items in
- National Air and Space Museum Collection
- Record ID
- nasm_A19520107000
- Usage
- Not determined