Pratt & Whitney R-1690 Hornet

The Pratt & Whitney R-1690 Hornet was a widely used American aircraft engine.

Developed by Pratt & Whitney, 2,944 were produced from 1926 through 1942.

In Germany, the BMW 132 was a developed version of this engine.

The R-1860 Hornet B was an enlarged version produced from 1929.

Comparable engines Related lists

R-1690 with chamber walls cut away to show internal workings