1918 Curtiss OX Series 5 V8 Aero Engine  Engine no. 11714

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Lot 120
1918 Curtiss OX Series 5 V8 Aero Engine
Engine no. 11714

Sold for £ 13,225 (US$ 16,589) inc. premium
1918 Curtiss OX Series 5 V8 Aero Engine
Engine no. 11714

Footnotes

  • The Curtiss OX 5 can trace its roots right back to a V-twin motorcycle designed by Glenn Curtiss in 1902. In 1906 a similar engine was modified for use in an aircraft and additional cylinders were progressively added, culminating in the V8 that first appeared in 1906. The engine was used primarily for Navy and Air Force, the U.S. Navy ordering the OX initially in 1912 for use in their A1 amphibious aircraft. The OX 5, a further development, appeared first in 1915 and was used as the power source for the JN-4 ‘Jenny’. In all some 12,600 or so units were built and production ceased early in 1919. This engine bears a plate indicating manufacture by The Willys Morrow Co. of Elmira, N.Y., presumably built by them under licence from The Curtiss Aeroplane & Motor Co., and displays a 1918 date of manufacture. Although production ceased in 1919, many of these engines remained in service years later, the fact that many had been bought in reserve by the U.S. Government resulting in engines being released to the market over the following decade or so. Many such engines were also used in boats.

    The eight cylinder, water-cooled engine, had a bore and stroke of 102mm x 127mm and displaced 8.2 litres. Engine rotation was clockwise. The pushrod-operated inlet and exhaust valves were operated by pushrods arranged one inside the other. Power output was 90hp at 1,400rpm, although short bursts at 1,800rpm would generate 105hp.

    Today the Curtiss OX 5 is a popular unit in Edwardian racing car specials. This example comes with a carburettor and a new water pump and is mounted on a display stand.
1918 Curtiss OX Series 5 V8 Aero Engine  Engine no. 11714
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