The Wright R-1300 Cyclone 7 is an American air-cooled seven-cylinder supercharged radial aircraft engine produced by Curtiss-Wright.

The engine was produced under license by Kaiser-Frazer and later by AVCO Lycoming.

[2] The engine was used in combat — the R-1300-1A and -1B in the A model North American T-28 Trojan and the R-1300-3, -3A, -3C and -3D in the Sikorsky H-19 Chickasaw.

The R-1300-4 and -4A were used in the N class blimp; 50 of these variants were produced by AVCO.

[2] Early-production engines had vibration problems, an improved lateral dampener in the crank brought about most of the model changes.