Supermarine Commercial Amphibian

The Supermarine Commercial Amphibian was a British passenger-carrying flying boat designed by Reginald Mitchell and built by the Supermarine Aviation Works.

Commercial Amphibian
Role Flying boat
Manufacturer Supermarine
Designer Reginald Mitchell
First flight September 1920

Description

In April 1920, the British Air Ministry announced that it would hold two competitions for commercial aircraft, one for Landplanes and one for Seaplanes. The Supermarine Commercial Amphibian, was designed to compete for the Seaplane prize,[1]:41 and was a single-engined biplane flying boat with a wooden hull and unequal span wings. The engine was mounted between the wings in pusher configuration. The tail had a single vertical fin, and single tailplane mounted halfway up the fin.[1]:42–43

The pilot was accommodated in an open cockpit just forward of the wings, and the passengers sat in an enclosed cabin further forward.[1]:42–43

The competition was held in September 1920, with the Commercial Seaplane finishing second to the Vickers Viking, winning a prize of £8,000. It was badly damaged in a crash in October 1920, and was not rebuilt.[1]:44–45 It formed the basis for the Supermarine Seal amphibian of 1921.[1]:68–69

Specifications

Data from Supermarine Aircraft since 1914 [1]:45

General characteristics

  • Crew: 1
  • Capacity: 2 passengers
  • Length: 32 ft 6 in (9.91 m)
  • Height: 14 ft 6 in (4.42 m)
  • Wing area: 600 sq ft (56 m2)
  • Empty weight: 3,996 lb (1,813 kg)
  • Gross weight: 5,700 lb (2,585 kg)
  • Powerplant: 1 × Rolls-Royce Eagle VIII V-12 water-cooled piston engine, 350 hp (260 kW)
  • Propellers: 4-bladed wooden fixed-pitch propeller

Performance

  • Maximum speed: 94.4 mph (151.9 km/h, 82.0 kn)
  • Cruise speed: 80 mph (130 km/h, 70 kn)
  • Alighting speed: 55 mph (48 kn; 89 km/h)
  • Range: 312 mi (502 km, 271 nmi)
gollark: You can probably get a bunch of low time hatchlings. Everyone loves low time hatchlings.
gollark: Trade it!
gollark: Plus, it would probably find its way to, I don't know, EA.
gollark: I don't think TJ09 is likely to sell it in any case, unfortunately.
gollark: Well, you could offer a few million [CURRENCY].

See also

References
  1. Andrews, C. F. (Charles Ferdinand); Morgan, E. B. (Eric B.) (1987), Supermarine aircraft since 1914 (New ed.), Putnam, ISBN 978-0-85177-800-6
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