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As the Wright Brothers naturally sought more powerful engines as their aircraft further developed, they turned to six-cylinder vertical engines around 1911. But later, after merging with another major manufacturer in 1916, the Wright-Martin Company produced Hispano-Suiza V-8 engines under license.
In 1920 Wright-Martin dissolved, with most becoming part of Mack Trucks, while the new Wright Aeronautical Corporation began developing original designs for aviation. These included a special six-cylinder vertical engine for airships which had characteristics of the Maybach dirigible engines used in German Zeppelins. In June 1921, the U.S. Navy placed an order for three of these engines known as the Model D-1. In March 1922, the D-1 completed a 50-hour endurance test. The engine was the largest of its type built up to that time, but never entered production.
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
Circa 1922
Country of Origin
United States of America
Type
PROPULSION-Reciprocating & Rotary
Manufacturer
Wright Aeronautical Physical Description
Type: Reciprocating, 6 cylinders, In-line, Liquid-cooled
Power rating: 261 kW (350 hp) at 1,350 rpm
Displacement: 30.28 L (1,847.26 cu in)
Bore and Stroke: 178 mm (7 in.) x 203 mm (8 in.)
Weight: 599 kg (1,320 lb)
Dimensions
Height 104.6 cm, 41.19 in., Length 180.6 cm, 71.13 in., Width 56.6 cm, 22.31 in. Materials
Steel, Aluminum, Copper, Rubber, Glass, Textile, Paint, Plastic, Preservative coating Inventory Number
A19731567000
Credit Line
Transferred from the U.S. Navy, Naval Supply Center, Cheatham Annex, Williamsburg, Virginia
Data Source
National Air and Space Museum
Restrictions & Rights
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