Following the departure of Frederick Rentschler and colleagues to form Pratt & Whitney, Charles Lawrance, who formerly headed his own company, became president of Wright Aeronautical, and reacted vigorously with a competitor to Pratt & Whitney’s Hornet. An enlarged and improved Wright Cyclone engine, known as the Model R-1750, made its formal appearance and passed a 50-hour service test during 1927, succeeding the Cyclone P-2, and certificated in January 1929. This model was relatively short lived, and was replaced by the more heavily produced R-1820 beginning in 1930.

Aircraft powered by R-1750, GR-1750, G1R-1750, and R-1750E engines included the: Keystone XLB-6, LB-6, LB-9, LB-10, LB-11, LB-11A, B-5A; Thomas-Morse XO-21A; Douglas O-29; General Avia C-14 and C-15.

 Display Status

This object is not on display at the National Air and Space Museum. It is either on loan or in storage.
Object Details
Date 1929 Country of Origin United States of America Type PROPULSION-Reciprocating & Rotary Manufacturer Wright Aeronautical
 Physical Description Type: Reciprocating, 9 cylinders, radial, air-cooled Power rating: 391 kW (525 hp) at 1,900 rpm Displacement: 30.5 L (1,750 cu in.) Bore and Stroke: 171 mm (6.8 in.) x 152 mm (6.0 in.) Weight: 345 kg (760 lb) Dimensions 3-D: 88.9 × 139.7cm, 344.7kg (2 ft. 11 in. × 4 ft. 7 in., 760lb.)
 Materials HAZ MAT: Asbestos
Ferrous Alloy
Aluminum Alloy
Paint
Adhesive Tape
Rubber
Grease
Plastic
Silica Gel
Copper Alloy
 Inventory Number A19660457000 Credit Line Found in the collection Data Source National Air and Space Museum Restrictions & Rights Usage conditions apply
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