# Piper L-4 Grasshopper

> liaison aircraft series

**Wikidata**: [Q3905507](https://www.wikidata.org/wiki/Q3905507)  
**Source**: https://4ort.xyz/entity/piper-l-4-grasshopper


## References

1. United States Naval Aviation 1910-2010 Volume II Statistics
2. [Designation-Systems.Net](http://www.designation-systems.net/non-us/brazil.html)
3. Jane's American Fighting Aircraft of the 20th Century