The de Havilland DH.90 Dragonfly is a 1930s British twin-engined luxury touring biplane built by the de Havilland Aircraft Company at Hatfield Aerodrome.
The Dragonfly shares a clear family resemblance with the Dragon Rapide, but is smaller and has higher aspect ratio, slightly sweptback wings. The lower wing has a shorter span than the upper, unlike the DH.89, and the top of the engine nacelles protrude much less above its surface because the fuel tank had been moved to the lower centre section. Structurally, too they are different: the Dragonfly had a new preformed plywood monocoque shell and strengthened fuselage. It was designed as a luxury touring aircraft for four passengers and a pilot, with provision for dual controls
In 1936 seven de Havilland DH.90 Dragonfly airframes were shipped to Canada, and erected by de Havilland Canada. Two were flown by the RCAF, and two were flown by the RCMP to combat rum runners. The remainder served a variety of small commercial operators. At least one, Reg. No. CF-BFF, was fitted with Edo floats, and was flown commercially as a Dragonfly floatplane. The RCAF eventually flew six, (Serial Nos. 7623-7628). Harold Skaarup web page and Wikipedia