The M.39B Libellula (from Libellulidae, a taxonomic family of dragonflies) was a Second World War tandem wing experimental aircraft built by Miles Aircraft; a scale version of the M.39 design proposed by Miles to meet Air Ministry specification B.11/
![lithiumbatterystore profile image](https://sharesunday.com/uploads/profiles/2020/07/8nIVVK3yOoeh2yXY4dgM3dMMh1594654989.png)