Wright R-1820 Cyclone

R-1820 Cyclone
	Curtiss-Wright R-1820 Cyclone Radial Engine
Type	Radial engine
National origin	United States
Manufacturer	Wright Aeronautical
First run	1930s
Major applications	Boeing B-17 Flying Fortress ; Curtiss P-36 Hawk ; Douglas B-18 Bolo ; Douglas DC-3 ; Douglas SBD Dauntless ; General Motors FM-2 Wildcat ; Sikorsky H-34 ; North American T-28 Trojan
Number built	47,475
Variants	Shvetsov M-25
Developed into	Wright R-2600 ; Wright R-3350

The Wright R-1820 Cyclone 9 is an American radial engine developed by Curtiss-Wright, widely used on aircraft in the 1930s through 1950s. It was produced under license in France as the Hispano-Suiza 9V or Hispano-Wright 9V, and in the Soviet Union as the Shvetsov M-25.

^ "SUMMARY OF WRIGHT ENGINE SHIPMENTS 1920 – 1930" (PDF). Archived from the original (PDF) on 2021-10-10. Retrieved 2023-09-18.

[1] "SUMMARY OF WRIGHT ENGINE SHIPMENTS 1920 – 1930" (PDF). Archived from the original (PDF) on 2021-10-10. Retrieved 2023-09-18.

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