Tags: Aircraft.
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.11/41 for a fast bomber. The M.39B was used by Miles to generate data from which the M.39 design was improved but the M.39 project was cancelled and the B.39B broken up.