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The Wright R-975 Whirlwind was a series of nine-cylinder air-cooled radial aircraft engines built by the Wright Aeronautical division of Curtiss-Wright. These engines had a displacement of about 975 cu in (15.98 L) and power ratings of 300–450 hp (220–340 kW).
Wright's J-1 was the first engine in its nine-cylinder R-790 Whirlwind series and was quickly followed by the J-3, J-4, J-4A, J-4B, and finally the popular and successful J-5 of 1925. In 1928, Wright replaced the R-790 series with the J-6 Whirlwind family, in which a supercharger was added to boost engine power and the cylinders were enlarged ...
One 4-AT with Wright J-4 200-hp engines was built for the U.S. Army Air Corps as the C-3, and seven with Wright R-790-3 (235 hp) as C-3As. The latter were upgraded to Wright R-975-1 (J6-9) radials at 300 hp and redesignated C-9. Five 5-ATs were built as C-4s or C-4As. The original (commercial production) 4-AT had three air-cooled Wright radial ...
The Wright R-790 Whirlwind was a series of nine-cylinder air-cooled radial aircraft engines built by Wright Aeronautical Corporation, with a total displacement of about 790 cubic inches (12.9 L) and around 200 horsepower (150 kW). These engines were the earliest members of the Wright Whirlwind engine family.
With the approach of war, increasing orders for M4 Sherman tanks were causing supply issues with the 9-cylinder radial Wright R-975 Whirlwind engine used. The U.S. Army decided it needed to source additional engine suppliers, choosing a version of the Ford GAA cut down from twelve cylinders to eight for various vehicle applications.
Pages in category "Wright aircraft engines" The following 15 pages are in this category, out of 15 total. ... Wright R-975 Whirlwind; Wright R-1300 Cyclone 7;
K-3 through K-8 had only minor modifications to K-2 ' s design, the only major change was in engines from Pratt & Whitney R-1340-16s to Wright R-975-28s. The Wright engine/propeller combination proved excessively noisy and was replaced in later K-ships with slightly modified Pratt & Whitney engines. The K-3 cost $325,000. [2]
Wright R-975-7 Whirlwind 400 hp (300 kW) 40 Armed BT-9 with one cowl gun and one rear flexible gun, and suitably modified canopy. NA-20: NA-16-2H Trials, to Fuerza Aérea Hondureña (FAH) Wright R-975 Whirlwind (Unknown sub-type/HP) 1 NC16025 originally intended as demonstrator for China NA-22: NA-22: USAAC (rejected) Wright R-760ET 225 hp (168 ...