Westland Weasel Aircraft

Production Details

Design Company:

Westland Aircraft Works, Yeovil

First Flight:

November 1918

Weasel:

4 - Westland Aircraft Works

Type Specification

Applies to:

Westland Weasel

Type:

Two seat fighter reconnaissance aircraft to RAF Type IIIA specification

Wing:

Constant chord, two bay biplane, equal span, staggered, unswept. Upper wing has dihedral while lower wing is flat. Wooden spars and ribs with fabric covering. Ailerons on all four wings

Fuselage:

Rectangular section structure mounted on lower wing. Top surface of fuselage faired to rounded section. Wooden structure with plywood covering forward, remainder fabric covering

Tail Unit:

Monoplane braced tailplane at top of fuselage with single fin and rudder

Landing Gear:

Crossaxle type undercarriage carried on V shape main undercarriage legs. Tail skid

Power Plant:

One 340 hp ABC Dragonfly nine cylinder air cooled radial engine driving a 9 ft 9 in diameter two blade wooden propeller

Accommodation:

Pilot in open cockpit below cut out in upper wing trailing edge. Gunner behind in open cockpit

Armament:

Two Vickers machine guns mounted on top of fuselage firing forward and one or two Lewis guns on a Scarff ring mount in the rear cockpit

Span:

35 ft 6 in

Length:

24 ft 10 in

Height:

10 ft 1 in

Wing Area:

368 sq ft

Empty:

1,626 lb

Loaded:

3,046 lb

Max Speed:

120 mph at sea level

Service Ceiling:

22,100 ft

Preserved in British Museums

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