
Cierva (автожиры X. Сиервы)
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Джордж Парналл на своей фирме построил два одноместных автожира, но оба оказались неудачными: С. 10 в 1927 году разбился в ходе сравнительных испытаний с построенным фирмой "Avro" аппаратом С.9. Автожир Parnall С.11, построенный 1928 году, был аналогичным, но оснащался мотором ADC Airdisco мощностью 120 л. с. (90 кВт). Сиерва потерпел аварию на этой машине в Йеле при попытке взлететь прежде, чем несущий винт развил достаточную скорость, но его восстановили с упрощенным пилоном и позднее использовали в Хэмбле в качестве учебного пособия.
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- Описание
Фотографии
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Air Enthusiast 2003-01 / K.Wixey - The Bolas touch
The one and only Parnall/Cierva C.10, J9038, at Yate early in 1928, shortly after completion.
In 1927 Parnall built the C.10, it was powered by a 70hp (52kW) Armstrong Siddeley Genet I radial. The C.10 was intended for military trials and given the serial number J9038. -
Aeroplane Monthly 1988-08 / P.Jarrett - Parnall's pinwheels
View of the newly completed C.10 at Yate, early 1928. The peculiar broad-chord rotor blades are apparent, as are the “stabilisers” and the tall tailskid. Note the pitot tube projecting from the rotorhead.
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Aeroplane Monthly 1988-08 / P.Jarrett - Parnall's pinwheels
J9038 approaches completion in Parnall's experimental works at Yate, Gloucestershire. Parnall Imp G-EBTE can be seen in the background.
Другие самолёты на фотографии: Parnall Imp - Великобритания - 1927
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Aeroplane Monthly 1988-08 / P.Jarrett - Parnall's pinwheels
The uncovered C.10 in the summer of 1927.
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Aeroplane Monthly 1988-08 / P.Jarrett - Parnall's pinwheels
The C.11 G-EBQG in its second form, with anticlockwise-rotating, wire-braced rotor blades, and new, repositioned outriggers with marked dihedral.
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Air Enthusiast 2003-01 / K.Wixey - The Bolas touch
Bolas designed the fuselage, nose and tail unit for the C.11, also known as the Parnall Gyroplane. Powered by a 120hp (89kW) ADC Airdisco eight-cylinder vee-configuration engine, it was civil registered as G-EBQG. This crashed at Yate in 1928 with Juan de la Cierva himself at the controls. It was rebuilt and modified but was not sucessful. It ended its days as an instructional airframe at Hamble, Hampshire.
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Aeroplane Monthly 1988-08 / P.Jarrett - Parnall's pinwheels
The Parnall/Cierva C.11, G-EBQG, in its first form, with clockwise-rotating rotors with telescopic bracing struts.
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Aeroplane Monthly 1988-08 / P.Jarrett - Parnall's pinwheels
A close-up of the C.11’s original rotorhead, showing the fitting around which a rope was wound to spin-up the rotor.
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Aeroplane Monthly 1988-08 / P.Jarrett - Parnall's pinwheels
In its final form, the C.11 had a new, pyramidal pylon and a shaft drive from the 120 h.p. Airdisco engine to the rotor hub.
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Aeroplane Monthly 1988-08 / P.Jarrett - Parnall's pinwheels
In its final form, the C.11 had a new, pyramidal pylon and a shaft drive from the 120 h.p. Airdisco engine to the rotor hub. The enormously wide-track undercarriage is well shown.
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Aeroplane Monthly 1988-08 / P.Jarrett - Parnall's pinwheels
During taxi trials at Yate on April 26, 1928, when Avro test pilot Flt Lt H. A. Hamersley was in the cockpit, the Parnall C.10 was badly damaged when it turned on its side. It was rebuilt only for to crash on take-off at Andover, Hampshire, on November 5, 1928.
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Aeroplane Monthly 1988-08 / P.Jarrett - Parnall's pinwheels
A unique photograph depicting J9038 in its second form, after its second mishap, on November 5, 1928, piloted by Cierva test pilot A. H. Rawson. The new, wider-track undercarriage and the telescopic struts supporting the rotor blades are evident.
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Aeroplane Monthly 1988-08 / P.Jarrett - Parnall's pinwheels
Parnall/Cierva C.10
- Фотографии