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Murray Rotary 6 Engine

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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:

This 2-stroke cycle powerplant of 1912 is the earliest American supercharged aeronautical engine still in existence. A vane-type supercharger is located between the crankcase and the accessory section.

Collection Item Long Description:

Data Source

National Air and Space Museum

Rights

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

Designer

Joseph J. Murray

Manufacturer

Murray-Willat Company

Credit Line

Gift of Miss Vera C. Murray.

Materials

Metal

Dimensions

  • 3-D: 78.7 × 73.7cm, 117.9kg (31 × 29 in., 260lb.)
  • Support: 147.3 × 95.3 × 49.5cm (58 in. × 37 1/2 in. × 19 1/2 in.)

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National Air and Space Museum Collection

Country of Origin

United States of America

Date

1912

Physical Description

  • Type: Rotary, 6 cylinders, air-cooled, 2-stroke, supercharged
  • Power rating: 52 kW (70 hp) at 1,200 rpm
  • Displacement: 6.14 L (374.52 cu in.)
  • Bore and Stroke: 100 mm (3.94 in.) x 130 mm (5.12 in.)
  • Weight: 118 kg (260 lb)

Type

PROPULSION-Reciprocating & Rotary

Inventory Number

A19640634000