“Gérin 1936 Varivol biplane”的意思、由来-开放百科全书

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Gérin 1936 Varivol biplane

释义

Design and development
Further developments
Specifications
References
Notes Bibliography

name=Varivol

image=

caption=

}}{{Infobox Aircraft Type

type=Research biplane

national origin=France

manufacturer=

designer=Jacques Gerin

first flight=1936

introduced=

retired=

status=Destroyed

produced=

primary user=

number built=1

developed from=

variants with their own articles=

developed into=
}}

The Gerin Varivol was a 1930s French research aircraft designed and built by Jacques Gerin.^[1] Only one aircraft was flown during 1936 before it was destroyed in an accident.^[1]

Design and development

The Varivol was an odd looking biplane with a deep and bulky fuselage with a knife edge rear where the rudder was attached and a braced variable-incidence tailplane was mounted on top of the rear fuselage.^[1] The unique feature of the aircraft were the two narrow-chord biplane wings in an inverted sesquiplane configuration.^[1] The wings were wire-braced and had one interplane strut on each side.^[1] The upper wing normally had an area of {{convert|6.30|m2|sqft|abbr=on}} but additional flexible surfaces inside the fuselage could be extended using an electrical motor to increase the wing area to {{convert|26|m2|sqft|abbr=on}}.^[1] It was also possible to change the camber of the wings when extended.^[1] The Varivol was powered by a {{convert|230|hp|kW|0|abbr=on}} Salmson radial piston engine with a two-bladed propeller.^[1]

It was first tested in a wind tunnel at Chalais-Meudon before starting test flying in March 1936.^[1] The aircraft continued to fly successfully until November 1936 when it was destroyed in a fatal crash, an investigation determined the accident was not due to the variable-area wings.^[1]

Further developments

Further development of the Varivol concept was carried out with the Gérin 1938 V.6E Varivol Racer a sleek monoplane racing aircraft that was built just prior to and during World War II, being put into storage after the war. The aircraft can be seen at the Musee Regional de l'Air at Angers in France.

Specifications

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References

Notes

1. ^¹²³⁴⁵⁶⁷⁸⁹¹⁰¹¹Orbis 1985, p. 1954

^[1]
}}

Bibliography

{{cite book |last= |first= |authorlink= |coauthors= |title= The Illustrated Encyclopedia of Aircraft (Part Work 1982-1985)|year= |publisher= Orbis Publishing|location= |issn=|pages=}}

2 : French experimental aircraft 1930–1939|Single-engined tractor aircraft

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