Prototype DH92 Dolphin E.3 fixed undercarriage
The sole DH92 Dolphin E.3 showing the fixed undercarriage that was initially fitted.
Intended as the ultimate development of the De Havilland Dragon series of aircraft, the De Havilland Aircraft Company DH92 Dolphin was a DH89 Dragon Rapide with a fully retractable undercarriage and dual controls. It featured a DH 86A-style nose to accommodate two crew (side-by-side) with an increased wing span of unequal size.
It first appeared with the 'trousered' fixed undercarriage seen in earlier earlier biplane transports although later it was fitted with retractable landing gear before its first flight, which took place on 9th September 1936.  Geoffrey de Havilland's log book describes the aircraft during its maiden flight as being 'too heavy'.
De Havilland DH92 Dolphin retractable undercarriage
De Havilland DH92 Dolphin showing retractable undercarriage installation.
The DH86 style nose gave it a 'DH Dragon-like' appearance, although no photographs showing a complete view of the sole prototype (E-3 / G-AEMX) survives today. 
Performance was disappointing, mainly due to the weight penalty associated with the various design changes. As a result, the only prototype was scrapped in December 1936.
De Havilland DH92 Dolphin E.3 with port undercarriage up
De Havilland DH92 Dolphin prototype E.3 with port undercarriage retracted.


Powerplant Two 204 hp Gipsy Six II                                                       
Span 50 ft 6 in
Maximum Weight 6,600 lb
Maximum Speed 161 mph estimated



Nil. Sole prototype scrapped in December 1936.


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