Wright R-1820-86 Cyclone radial engine
Wright R-1820-86 Cyclone radial engine, 1,425 hp (1,063 kW) seen here on a Trojan T-28.
The R-1820 Cyclone 9 represented a further development of the Wright P-2 engine dating back to 1925. Featuring a greater displacement and a host of improvements, the R-1820 entered production in 1931. The engine remained in production well into the 1950s.
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