Wright R-1820 Cyclone Engine Walk Around

Photographs taken at the National Museum of the United States Air Force, Dayton, Ohio

Photographs taken at the Air Zoo, Kalamazoo, Michigan

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.  It was utilized in the following aircraft:

Bloch MB.221

Boeing B-17 Flying Fortress

Boeing 307

Brewster F2A

Curtiss AT-32-A Condor

Curtiss SBC-4 Helldiver

Curtiss P-36 Mohawk

Curtiss SC Seahawk

Curtiss-Wright CW-21

Douglas A-33

Douglas B-18

Douglas DC-2

Douglas DC-3 (DST, G-102 and G-202)

Douglas Super DC-3, R4D-8 / C-117

Douglas DC-5

Douglas DF Wright SGR-1820G-2

Douglas SBD Dauntless

FMA AeMB.2 Bombi

General Motors FM-2 Wildcat

Grumman TF-1 / C-1 Trader

Grumman E-1 Tracer

Grumman FF

Grumman F3F

Grumman XF5F

Grumman XP-50

Grumman HU-16 Albatross

Grumman J2F Duck

Grumman S-2 Tracker

Lockheed 14

Lockheed Lodestar

Lockheed Hudson

Martin B-10

North American NA-44

North American O-47

North American P-64

North American T-28B/C/D Trojan

Northrop YC-125 Raider

Piasecki H-21

Polikarpov I-16

Ryan FR Fireball

Sikorsky S-58/HUS/HSS/H-34

Vultee V-1

• From Wikipedia