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Famed designer Mark Birkigt was from Switzerland, but his aircraft engines were built elsewhere. Hispano-Suiza engines were built in company factories in France and Spain, but also under license in England and the United States. In 1916, the Wright-Martin Corporation was formed in New Brunswick, New Jersey in order to begin quantity production of the 112 kW (150 shp) Hispano-Suiza Model A engine ordered by the French government. Over time, among the additional Hispano-Suiza engine models developed were the 134 kW (180 shp) Model E and the 224 kW (300 hp) Model H.

In 1919, Wright-Martin became Wright Aeronautical Corporation and made improvements in the Model H by raising its output to 280 (375 shp). The engine was then designated H-3. In 1922, the H-3 was considered the lightest and most efficient pursuit engine in the world.

 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 Designer La Société Hispano-Suiza
 Manufacturer Wright Aeronautical
 Physical Description Type: Reciprocating, 8 cylinders, V-type, water cooled Power rating: 224 kW (300 hp) at 1,800 rpm Displacement: 18.5 L (1127.36 cu in.) Bore and Stroke: 140 mm (5.51 in.) x 150 mm (5.91 in.) Weight: 405.5 kg (894 lb) Dimensions Overall: 35 x 38 1/2 x 55in., 620lb. (88.9 x 97.8 x 139.7cm, 281.2kg)
Other: 35 x 55 x 38 1/2in. (88.9 x 139.7 x 97.8cm)
Overall (with Stand): 405.5kg (894lb.)
 Materials Aluminum, Steel, Ceramic, Copper, Brass, Rubber, Textile, Paint, Leather
 Inventory Number A19710886000 Credit Line Transferred from the U.S. Navy Data Source National Air and Space Museum Restrictions & Rights Open Access (CCO)
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