Military Wiki
Role coastal patrol flying boat
Manufacturer English Electric
Designer W.O. Manning
Produced 1924
Number built 2

The English Electric M.3 Ayr was a British three-seat coastal patrol flying boat designed and built by the English Electric Company. The aircraft refused to become airborne and the project was abandoned.


While the company were working on the Kingston they decided to experiment with a design for a small flying boat. The aircraft was a single-engined biplane flying-boat named the Ayr and was built in 1924. The hull was designed by Linton Hope who had designed the Kingston hulls. An unusual feature was the lower wing, or stub wing mounted low down on the hull. It was designed to carry bombs underneath the stub-wings, these would have been underwater when the aircraft was afloat. During trials the aircraft rolled to the right and refused to become airborne.


Data from British Flying Boats [1]

General characteristics

  • Crew: 3
  • Length: 40 ft 8 in (12.40 m)
  • Wingspan: 46 ft 0 in (14.02 m)
  • Height: 13 ft 8 in (4.12 m)
  • Wing area: 466 sq ft (43.3 m²)
  • Empty weight: 4,406 lb (2,003 kg)
  • Loaded weight: 6,846 lb (3,112 kg)
  • Powerplant: 1 × Napier Lion IIB 12-cylinder 'broad arrow' piston engine, 450 hp (336 kW)
  • All weights estimated


  • Maximum speed: 127 mph (110 knots, 204 km/h)
  • Service ceiling: 14,500 ft (4,400 m)
  • All performance estimated


  • Guns:
  • Bombs: Provision for sponson carried bombs


  1. London 2003, pp. 260–261.
  • The Illustrated Encyclopedia of Aircraft (Part Work 1982-1985), 1985, Orbis Publishing, Page 1613
  • London, Peter. British Flying Boats. Stroud, UK:Sutton Publishing, 2003. ISBN 0-7509-2695-3.

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