AP 118 · No. 10 Section II · Aircraft Plate 94 / 232

Plate 94 of 232 · Between the wars · Two-seat all-metal light cabin monoplane

General Aircraft Cygnet II

General Aircraft GAL.42 Cygnet II (1937), painted as G-AGBN, c/n GAL/42/111, one of about ten Cygnet IIs built by General Aircraft at Hanworth in 1939–41, impressed into the RAF as ES915 and used by No. 23 Squadron as a trainer for pilots converting to nosewheel aircraft, returned to the civil register after the war, flown by the Strathallan Collection until 1988 as the last airworthy Cygnet and now displayed at the National Museum of Flight, East Fortune: General Aircraft’s side-by-side two-seat all-metal light monoplane of 34 ft 6 in span, developed from the C.W. Aircraft Cygnet of 1937, Britain’s first all-metal stressed-skin light aeroplane, with an enclosed cabin, twin fins and rudders, a fixed tricycle undercarriage with oleo legs and a 150 hp Blackburn Cirrus Major II, shown standing level on its three wheels as displayed: RAF trainer scheme of dark earth and dark green above and trainer yellow below, Type A1 roundels ahead of a large black ‘G-AGBN’ on both fuselage sides, Type A roundels under the wings, red, white and blue fin flashes on both fins, yellow undercarriage legs, red seats and a black spinner and airscrew with red tips (shape from the L’Aérophile three-view of October 1939, with the cabin glazing, undercarriage, paint and markings following photographs of G-AGBN).

3D model

Turn it over

A procedural model built in Blender from published dimensions, drawings and photographs, painted as G-AGBN, c/n GAL/42/111, one of about ten Cygnet IIs built by General Aircraft at Hanworth in 1939–41, impressed into the RAF as ES915 and used by No. 23 Squadron as a trainer for pilots converting to nosewheel aircraft, returned to the civil register after the war, flown by the Strathallan Collection until 1988 as the last airworthy Cygnet and now displayed at the National Museum of Flight, East Fortune: General Aircraft’s side-by-side two-seat all-metal light monoplane of 34 ft 6 in span, developed from the C.W. Aircraft Cygnet of 1937, Britain’s first all-metal stressed-skin light aeroplane, with an enclosed cabin, twin fins and rudders, a fixed tricycle undercarriage with oleo legs and a 150 hp Blackburn Cirrus Major II, shown standing level on its three wheels as displayed: RAF trainer scheme of dark earth and dark green above and trainer yellow below, Type A1 roundels ahead of a large black ‘G-AGBN’ on both fuselage sides, Type A roundels under the wings, red, white and blue fin flashes on both fins, yellow undercarriage legs, red seats and a black spinner and airscrew with red tips (shape from the L’Aérophile three-view of October 1939, with the cabin glazing, undercarriage, paint and markings following photographs of G-AGBN). Drag to orbit, scroll or pinch to zoom · download .glb (794 KB)

Data plate

Specification

First flight, number built and top speed are for the whole family (); engine, crew and dimensions are for the General Aircraft GAL.42 Cygnet II (1937) modelled here.

History

The Cygnet II

The Cygnet began at Slough in 1936 with C.W. Aircraft Ltd, a small firm formed by C.R. Chronander and J.I. Waddington, whose initials gave it its name. Their design was a two-seat, side-by-side cabin monoplane built entirely of light alloy with a stressed skin, at a time when British light aircraft were still made of wood, fabric and steel tube. The prototype, G-AEMA, first flew at Hanworth in May 1937 with a tail wheel, a single fin and a 90 hp Cirrus Minor, making it the first all-metal stressed-skin light aeroplane built in Britain.

Certification was slow, partly because of the novel way the aircraft was riveted, and C.W. Aircraft sold none. It had also spent heavily on a larger design, and in March 1938 it closed. General Aircraft Ltd bought the rights and the prototype, called it the GAL.42, and reworked it as the Cygnet II with a 150 hp Cirrus Major II, twin fins and rudders, and a fixed tricycle undercarriage with oleo legs, one of the first on a British light aircraft. The nosewheel made it easier to land and much harder to tip on to its nose. Production began at Hanworth in 1939, and the first production aircraft was flying by July.

The war stopped civil sales after only about ten had been built. The RAF impressed five, and because nosewheel aircraft were still rare in Britain it used them to teach pilots the technique before they went on to the Douglas Boston and Havoc, with squadrons including Nos. 23, 24, 85 and 88. Later they served as communications aircraft. The type was not revived after the war, though the survivors flew on as private aircraft for many years.

This airframe

General Aircraft Cygnet II G-AGBN

G-AGBNThe airframe modelled

G-AGBN (c/n GAL/42/111) was built at Hanworth and impressed into the RAF as ES915, serving with No. 23 Squadron, which was converting to the Boston and Havoc, as a nosewheel trainer. The National Museum of Flight records that Guy Gibson, later leader of the Dams raid, flew it twice in February 1942, while he was an instructor at a training unit, to teach pilots unused to nosewheel aircraft. After the war it returned to the civil register and went on flying privately; it later joined Sir William Roberts’ Strathallan Collection in Perthshire and was retired in 1988 as the last airworthy Cygnet. When the Strathallan Collection was broken up the aircraft went to East Fortune, and it is displayed in the museum’s civil aviation hangar; the only other survivor is in South America. The model shows it as displayed, standing level on its tricycle undercarriage, in RAF trainer colours: dark earth and dark green above and trainer yellow below, Type A1 roundels ahead of a large black ‘G-AGBN’ on both fuselage sides, Type A roundels under the wings, red, white and blue flashes on both fins, yellow undercarriage legs, red seats, and a black spinner and airscrew with red tips. The shape follows the three-view published in L’Aérophile in October 1939, scaled to the published span and length, with the cabin glazing, undercarriage, paint and markings taken from photographs of G-AGBN at East Fortune.

See it at National Museum Of Flight

Where to see one

In the gazetteer

The gazetteer records the Cygnet II in one UK collection. The airframe modelled here is marked.

Every airframe and serial All 232 plates

Profiles and models are procedural interpretations built in Blender from published dimensions, three-view drawings and photographs of each airframe. Treat the museum aircraft as the reference.