# Grumman FF

> 1931 fighter aircraft family by Grumman

**Wikidata**: [Q769121](https://www.wikidata.org/wiki/Q769121)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Grumman_FF)  
**Source**: https://4ort.xyz/entity/grumman-ff


## References

1. United States Naval Aviation 1910-2010 Volume II Statistics
2. [Source](https://github.com/JohnMarkOckerbloom/ftl/blob/master/data/wikimap)
3. Freebase Data Dumps. 2013
4. Jane's American Fighting Aircraft of the 20th Century
5. National Library of Israel Names and Subjects Authority File