# R-1690 Hornet

> 9-cylinder radial engine family by Pratt & Whitney

**Wikidata**: [Q1813068](https://www.wikidata.org/wiki/Q1813068)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Pratt_&_Whitney_R-1690_Hornet)  
**Source**: https://4ort.xyz/entity/r-1690-hornet


## References

1. [Pratt & Whitney](http://www.pw.utc.com/R1690_Hornet_Engine)
2. The Complete Encyclopedia of Flight 1848-1939, Chartwell Edition