The Supermarine Sea Urchin was an unbuilt British racing biplane flying boat that the Supermarine Aviation Works designed to compete in the 1924 Schneider Trophy. It was to be a single-seat biplane powered by a Rolls-Royce Condor V-12 water-cooled engine buried in the fuselage, driving a pusher propeller mounted on the upper wing through geared shafts. That arrangement was the source of its trouble: the project was abandoned without being built because of problems with the engine and with the transmission needed to drive the propeller. It is one of the racing designs that Supermarine drew up in the years between the Sea Lion series and the monoplane seaplanes, and it never reached the water.
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Comparison
Body StyleAircraft (no road body style) 1 Connections
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Source Supermarine Sea Urchin (Wikipedia)
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Source Supermarine Sea Urchin (Wikipedia)
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Source Supermarine Sea Urchin (Wikipedia)LeadQuote, Lead
The Supermarine Sea Urchin was an unbuilt British racing biplane flying boat designed by the Supermarine Aviation Works
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Source Supermarine Sea Urchin (Wikipedia)LeadQuote, Lead
The Supermarine Sea Urchin was an unbuilt British racing biplane flying boat designed by the Supermarine Aviation Works
Sources
1. Supermarine Sea Urchin (Wikipedia)
Lead
The Supermarine Sea Urchin was an unbuilt British racing biplane flying boat designed by the Supermarine Aviation Works
Lead, status
It was abandoned without being built
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