Air Enthusiast 2003-01 / K.Wixey - The Bolas touch

Регистрационный номерRegistry number: J9038   [7]

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

Регистрационный номерRegistry number: J9038   [7]

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.

Aeroplane Monthly 1988-08 / P.Jarrett - Parnall's pinwheels

Регистрационный номерRegistry number: J9038   [7]

Aeroplane Monthly 1988-08 / P.Jarrett - Parnall's pinwheels

Регистрационный номерRegistry number: J9038   [7]

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: Another planes on the photo: Parnall Imp - ВеликобританияUnited Kingdom - 1927

Aeroplane Monthly 1988-08 / P.Jarrett - Parnall's pinwheels

Регистрационный номерRegistry number: J9038   [7]

The uncovered C.10 in the summer of 1927.

Aeroplane Monthly 1988-08 / P.Jarrett - Parnall's pinwheels

Регистрационный номерRegistry number: G-EBQG   [6]

The C.11 G-EBQG in its second form, with anticlockwise-rotating, wire-braced rotor blades, and new, repositioned outriggers with marked dihedral.

Air Enthusiast 2003-01 / K.Wixey - The Bolas touch

Регистрационный номерRegistry number: G-EBQG   [6]

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.

Aeroplane Monthly 1988-08 / P.Jarrett - Parnall's pinwheels

Регистрационный номерRegistry number: G-EBQG   [6]

The Parnall/Cierva C.11, G-EBQG, in its first form, with clockwise-rotating rotors with telescopic bracing struts.

Aeroplane Monthly 1988-08 / P.Jarrett - Parnall's pinwheels

Регистрационный номерRegistry number: G-EBQG   [6]

A close-up of the C.11’s original rotorhead, showing the fitting around which a rope was wound to spin-up the rotor.

Aeroplane Monthly 1988-08 / P.Jarrett - Parnall's pinwheels

Регистрационный номерRegistry number: G-EBQG   [6]

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.

Aeroplane Monthly 1988-08 / P.Jarrett - Parnall's pinwheels

Регистрационный номерRegistry number: G-EBQG   [6]

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.

Aeroplane Monthly 1988-08 / P.Jarrett - Parnall's pinwheels

Регистрационный номерRegistry number: J9038   [7]

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.

Aeroplane Monthly 1988-08 / P.Jarrett - Parnall's pinwheels

Регистрационный номерRegistry number: J9038   [7]

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.

Aeroplane Monthly 1988-08 / P.Jarrett - Parnall's pinwheels

Parnall/Cierva C.10