One prototype only, K2892, never flown. Specification Blackburn F3 (F.7/30) | BAE Systems | International Powerplant One 695 hp Rolls-Royce Goshawk IIISpan36 ft 10.75 inMaximum Weight3,960 lb Capacity & Armament One pilot; four fixed forward-firing Vickers Mk III machine guns Maximum Speed190 mph at 14,500 ft (estimated)
You have to admit though that this is the only biplane where the pilot has an unobstructed view forward and upward and the view to the side is far better than many as well.