Felixstowe F.3

Felixstowe F.3
Felixstowe F.3, Canada 1920
Role Military flying boat
National origin United Kingdom
Manufacturer Short Brothers
Dick, Kerr & Co.
Phoenix Dynamo Manufacturing Company
Malta Dockyard (23)
Canadian Vickers
Designer John Cyril Porte
First flight February 1917
Introduction February 1918
Primary users Royal Naval Air Service
Royal Air Force
United States Navy
Number built 182
Developed from Felixstowe F.2
Variants Felixstowe F.5
Felixstowe F5L

The Felixstowe F.3 was a British First World War flying boat, successor to the Felixstowe F.2 designed by Lieutenant Commander John Cyril Porte RN at the naval air station, Felixstowe.

Design and development

In February 1917, the first prototype of the Felixstowe F.3 was flown. This was a larger and heavier development of the Felixstowe F.2A, powered by two 320 hp (239 kW) Sunbeam Cossack engines.[1] Large orders followed, with the production aircraft powered by Rolls-Royce Eagles. The F.3's larger size gave it greater range and a heavier bombload than the F2, but poorer speed and agility. Approximately 100 Felixstowe F.3s were produced before the end of the war, including 18 built by the Dockyard Constructional Unit at Malta.[2]

Operational history

The larger F.3, which was less popular with its crews than the more maneuverable F.2A, served in the Mediterranean as well as the North Sea.

In 1920, the Canadian Air Board sponsored a project to conduct the first-ever Trans-Canada flight to determine the feasibility of such flights for future air mail and passenger service. The leg from Rivière du Loup to Winnipeg was flown by Lieutenant Colonel Leckie and Major Hobbs in a Felixstowe F.3.

On the 22 March 1921, a Felixtowe F.3 flying boat of the Portuguese Naval Aviation – crewed by the naval aviators Sacadura Cabral and Ortins de Bettencourt, naval navigator Gago Coutinho and aviation mechanic Roger Soubiran – performed the first flight between Mainland Portugal and Madeira.

Operators

Felixstowe F.3 resting on the slipway at Kalafrana, Malta, c.1918. F.3s were operating throughout the Mediterranean by the end of the war.
 Australia
  • Tasmania – two for commercial use, carrying six passengers or a ton (2,240 lb) of freight
 Canada
 Portugal
 Spain
 United Kingdom
 United States

Specifications (F.3)

Data from British Naval Aircraft since 1912 [3]

General characteristics

  • Crew: four
  • Length: 49 ft 2 in (14.99 m)
  • Wingspan: 102 ft (31.09 m)
  • Height: 18 ft 8 in (5.69 m)
  • Wing area: 1,432 ft² (133.03 m²)
  • Empty weight: 7,958 lb (3,610 kg)
  • Loaded weight: 12,235 lb (5,550 kg)
  • Powerplant: two × Rolls-Royce Eagle VIII V12 inline piston, 345 hp (257 kW) each

Performance

  • Maximum speed: 91 mph (79 knots, 147 km/h) at 2,000 ft (610 m)
  • Service ceiling: 8,000 ft (2,438 m)
  • Wing loading: 8.54 lb/ft² (41.8 kg/m²)
  • Power/mass: 0.056 hp/lb (0.092 kW/kg)
  • Endurance: Six hours
  • Climb to 2,000 ft (610 m): 5 min 15 s
  • Climb to 6,500 ft (1,980 m): 24 min

Armament

  • Guns: 4 × Lewis guns (one in the nose, three amidships)
  • Bombs: Up to 920 lb (418 kg) of bombs beneath wings

See also

Related development

References

  1. ↑ Bruce 16 December 1955, p.897.
  2. ↑ Thetford 1978, p.197.
  3. ↑ Thetford 1978, p.198.
  4. ↑ Ransom and Fairclough, S and R (1987). "English Electric Aircraft and their Predecessors". Their Fighting Machines. Putnam. Retrieved 7 January 2017.

Further reading

  • Bruce, J.M. "The Felixstowe Flying-Boats: Historic Military Aircraft No. 11 Part 1". Flight, 2 December 1955, pp. 842–846.
  • Bruce, J.M. "The Felixstowe Flying-Boats: Historic Military Aircraft No. 11 Part 2". Flight, 16 December 1955, pp. 895–898.
  • Bruce, J.M. "The Felixstowe Flying-Boats: Historic Military Aircraft No. 11 Part 3". Flight, 23 December 1955, pp. 929–932.
  • Thetford, Owen. British Naval Aircraft since 1912. London: Putnam, Fourth edition, 1978. ISBN 0-370-30021-1.
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