Supermarine Sea Urchin

Short description: 1920s British racing aircraft design project

Sea Urchin

General information
Type| Racing flying-boat
Manufacturer| Supermarine Aviation Works

The Supermarine Sea Urchin was an unbuilt British racing biplane flying boat designed by the Supermarine Aviation Works 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 via geared shafts. It was abandoned without being built owing to problems with the engine and the transmission required to drive the propeller.[1]

## Contents

* 1 Specifications (Sea Urchin – estimated)
* 2 See also
* 3 References
* 4 Sources

## Specifications (Sea Urchin – estimated)

Data from Supermarine Aircraft Since 1914[1]

General characteristics

* Crew: 1
* Powerplant: 1 × Rolls-Royce Condor V-12 water-cooled piston engine, 600 hp (450 kW) driving the propeller through bevel gearboxes and a transmission shaft
* Propellers: 4-bladed fixed-pitch pusher propeller

Performance

## See also

* List of flying boats and floatplanes

## References

1. ↑ 1.0 1.1 Andrews & Morgan 1981, pp. 174–175, 356.

## Sources

* Andrews, Charles Ferdinand; Morgan, Eric B. (1981). Supermarine Aircraft since 1914. London: Putnam. ISBN 978-03701-0-018-0. https://books.google.com/books?id=p3NTAAAAMAAJ.

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