General Aircraft ST-25

Monospar ST-25
Monospar ST-25 Jubilee of Eloy Fernández Navamuel during the Spanish Civil War
Role
National origin	United Kingdom
Manufacturer	General Aircraft Ltd, Hanworth
First flight	19 June 1935
Produced	1935–1939
Number built	60
Developed from	General Aircraft Monospar ST-10

The General Aircraft Monospar ST-25 was a British 1930s light twin-engined utility aircraft.

The Monospar ST-25 was a low-wing cantilever monoplane with a fabric-covered metal structure. The monospar name came from the use of a single spar in the wing structure, that had been developed by H J Stieger. The cabin was enclosed with five seats. It was based on the GAL Monospar ST-10, with the addition of a folding seat for a fifth passenger, extra side windows, and the addition of a radio receiver. On 19 June 1935, the prototype (G-ADIV) made its first flight at Hanworth Air Park. It was designated Monospar ST-25 Jubilee, to honour the 25th anniversary of the reign of King George V.

Data from Jackson, 1973

General characteristics

Performance

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