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The Wright vertical four-cylinder engine was designed by Orville Wright in 1906. These engines, of which more were built than any other Wright Brothers' engine model, were produced until approximately 1912. They were used during the U.S. Army and European demonstrations, which were crucial to the success of the Wright brothers and their airplanes. An engine of this type powered the Vin Fiz, the first U.S. transcontinental aircraft, and Wright Model B aircraft. A Wright B1 was the U.S. Navy’s second aircraft, which was first flown by Orville Wright on July 15, 1911, and later converted to a “hydroaeroplane.”
This particular engine was a keepsake of Orville Wright for many years. Wright gave the engine to his close and trusted friend, Jim Jacobs, who had been a mechanic with the original Wright Company. In 1948, the engine was donated to the Smithsonian Institution by Jacobs' wife, Ruth.
Date
1906
Country of Origin
United States of America
Type
PROPULSION-Reciprocating & Rotary
Manufacturer
Wright Company (Dayton, Ohio) Physical Description
Engine Type: Reciprocating, 4 cylinders, in-line, water cooled
Power rating: 31 kW (42 hp) at 1,325 - 1,500 rpm
Displacement: 3.9 L (240 cu in.)
Bore and Stroke: 111 mm (4.375 in.) x 102 mm (4 in.)
Weight: 81.6 kg (180 lb.)
Dimensions
Overall: 1 m 3.5cm × 45.7cm × 68.6cm, 81.6kg (3 ft. 4.8 in. × 1 ft. 6 in. × 2 ft. 3 in., 180lb.)
Overall (Support (Each block)): 47.3cm × 7cm × 11.4cm (1 ft. 6.6 in. × 2.8 in. × 4.5 in.) Materials
Metal
Plastic
Coating Inventory Number
A19620037000
Credit Line
Gift of the Family of James M. H. Jacobs
Data Source
National Air and Space Museum
Restrictions & Rights
Open Access (CCO)
For more information, visit the Smithsonians Terms of Use.