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In 1911, with their assistant Charles Taylor, Wilber and Orville Wright’s original Wright Company began work on a six-cylinder engine, which was first used by the U.S. Army Signal Corps on the Wright Model C aircraft. The engine developed problems in service, leading to design changes, and by 1913 a modified engine known as the Wright 6-60 evolved. At 1560 rpm, it was claimed that this engine developed 53.6 to 55.9 kW (72 to 75 hp). In 1914, a flexible flywheel drive was added, and the engine was re-designated Wright 6-70.

This engine, manufacturer's serial number 11, was one of the first six-cylinder engines designed and built by the Wright Company. One of the earliest Wright six-cylinder engines was installed in the U.S. Army Signal Corps aircraft Number 10 at Fort Riley, Kansas.

 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 1912 Country of Origin United States of America Type PROPULSION-Reciprocating & Rotary Manufacturer Wright Company (Dayton, Ohio)
 Physical Description Type: Reciprocating, In-line, 6 cylinders, water-cooled Power rating: 44.7 kW (60 hp) at 1,400 rpm Displacement: 6.65 L (405.9 cu. in.) Bore and Stroke: 111.13 mm (4.375 in) x 114.30 mm (4.5 in) Weight: 136 kg (300 lb) Dimensions 3-D: 104 × 38.1 × 68.6cm (40 15/16 × 15 × 27 in.)
Support: 25.4 × 88.9 × 43.2cm (10 × 35 × 17 in.)
 Materials metal, fabric, rubber
 Inventory Number A19340010000 Credit Line Transferred from the War Department, Air Corps, Materiel Division, Wright Field, Dayton, Ohio. Data Source National Air and Space Museum Restrictions & Rights Usage conditions apply
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