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Like many aircraft engine manufacturers, Isotta-Fraschini began building auto engines in 1898, and produced its first aircraft engine in 1908. Its early products were used in trainers and airships. Most were six cylinder in-lines, with cast-iron cylinders in pairs with common heads. Power varied from 89 to 209 kW (120 to 280 hp). The Model V-6 (“V” derived from the Italian volo for flight) was introduced in 1917, and was the most important of the company’s engines.

Eduardo Bianchi Company, San Giorgio of Sestri Ponente, and Romeo of Milan, Italy were granted licenses to build the V-6. The V-6 powered the Macchi 7 and the Savoia 13 airplanes successfully in the Schneider Cup Races of 1919 and 1921, respectively.

Later derived engine products had monobloc cast aluminum heads, but retained separate iron cylinders. Beginning in 1920, the company’s engines assumed the Asso name.

 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 1917 Country of Origin Italy Type PROPULSION-Reciprocating & Rotary Manufacturer Isotta-Fraschini
 Physical Description Type: Reciprocating, 6 cylinders, in-Line, water cooled Power rating: 186 kW (250 hp) at 1,650 rpm Displacement: 16.6 L (1,014 cu in.) Bore and Stroke: 140 mm (5.51 in.) x 180 mm (7.09 in.) Weight: 281 kg (620 lb) Dimensions Storage (Rehoused on metal pallet and stand): 203.2 × 107.3 × 136.5cm, 374.2kg (6 ft. 8 in. × 3 ft. 6 1/4 in. × 4 ft. 5 3/4 in., 825lb.)
 Materials Aluminum
Steel
Copper Alloy
Rubber
Paint
 Inventory Number A19340003000 Credit Line Transferred from the War Department, Air Corps, Materiel Division, Wright Field, Dayton, Ohio Data Source National Air and Space Museum Restrictions & Rights Usage conditions apply
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