M.Goodall, A.Tagg British Aircraft before the Great War (Schiffer)
Deleted by request of (c)Schiffer Publishing
G.Duval British Flying-Boats and Amphibians 1909-1952 (Putnam)
Pemberton-Billing Flying-boats (1913/1914)
Undeterred by failure, Pemberton-Billing’s reference to his marine aircraft as ‘not aeroplanes which float, but boats which fly’ was borne out by his next flying-boat project, the P.B.7, of 1914. In this design, the forward part of the hull consisted of a cabin cruiser motor boat, powered by a 225 h.p. Sunbeam engine, while the after part, including wings, propellers, and tail unit, was detachable. In the assembled state, extended drive linkage connected the Sunbeam to the twin pusher propellers. The P.B.7 layout was intended to eliminate the problem of docking a large flying-boat by loading the motor boat at a pier, then connecting up with the flight structure at a convenient offshore mooring. In emergency, the flight structure could be jettisoned on the water, leaving the seaworthy motor boat to proceed alone and unhindered. A batch of P.B.7s were on order for the German Navy, and at the outbreak of war several motor boats of this type were complete and ready to have the flight structure fitted. Work on them was stopped and the design adapted into the S.S.1 military flying-boat.
The S.S.1 project consisted of a scaled-down version of the P.B.7, equipped with folding wings. Intended for launching from a surfaced submarine, the machine would jettison its flight structure after action, returning to base as a fast motor launch. In the event, it was not built, partly because Pemberton-Billing had joined the R.N.A.S. and was planning the anti-Zeppelin raid on Friedrichshaven, and partly because the company now had priority wartime contracts to fulfil. Eventually the company was transferred to the capable hands of Hubert Scott-Paine, retaining the original description of its marine aircraft, ‘Supermarines’, as the company name.
Power Plant: One 225 h.p. Sunbeam
Span: 57 feet 6 inches
Length: 34 feet
Weight Loaded: 3,950 pounds
Total Area: 558 square feet
Max. Speed: 70 m.p.h. (estimated)