You are here

Wright 6-60, In-line 6 Engine


Display Status:

This object is on display in the Early Flight exhibition at the National Air and Space Museum in Washington, DC.

Collection Item Summary:

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.

Collection Item Long Description:

Data Source

National Air and Space Museum


Do not reproduce without permission from the Smithsonian Institution, National Air and Space Museum

Credit Line

Transferred from the War Department, Air Corps, Materiel Division, Wright Field, Dayton, Ohio.


metal, fabric, rubber


  • 3-D: 104 × 38.1 × 68.6cm (40 15/16 × 15 × 27 in.)
  • Support: 25.4 × 88.9 × 43.2cm (10 × 35 × 17 in.)

Country of Origin

United States of America



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)


PROPULSION-Reciprocating & Rotary

Inventory Number