Hendy Heck

The Parnall Heck was a 1930s British four-seat cabin monoplane built by Parnall Aircraft Limited at Yate, Gloucestershire. Originally a Hendy design, few were built. It combined the strength and comfort of a cabin aircraft with the speed of a racer.Lukins 1944

Design

The Heck was designed by Basil B. Henderson on commission from Whitney Straight, who specified a high cruising speed along with a very low landing speed.Ord-Hume 2000 p. 439 It was a single-engined, conventional low-wing cabin monoplane, built of spruce with a plywood covering, initially a two-seater in tandem layout. It had a manually operated retractable tailwheel undercarriage, leading edge slats and slotted flaps, giving it good short-field performance in spite of its high wing loading compared to contemporary aircraft in this class.

History

The type was originally designated the Hendy 3308 Heck, with the prototype built by the Westland Aircraft Works at Yeovil. While originally intended to be fitted with a Napier Javelin engine, it was completed with a de Havilland Gipsy Six engine instead. It was allocated the registration ''G-ACTC'' and first flew in July 1934.''Air-Britain Archive'' Summer 2009, p. 55

Parnall Aircraft Limited was formed in May 1935 when George Parnall and Company merged with the Hendy Aircraft Company and the armament engineering firm Nash & Thompson. The Heck was redesignated the Parnall Heck. A number of problems with the undercarriage led to it being locked down and covered with 'trouser' fairings. The aircraft set a new record for the flight from Cape Town to England of 6 days, 8 hours and 27 minutes in November 1936.

A small production line was started at Yate, Gloucestershire and the production version was designated the Heck 2C. The production aircraft were three-seaters with fixed spatted undercarriages. None of the aircraft was sold, and four (G-AEGH, G-AEGI, G-AEGJ and G-AEMR) were operated by Parnall Aircraft for communications and liaison with RAF squadrons in connection with Parnall's armament contracts. When the Second World War started, the aircraft were repainted from dark grey to a brown and green camouflage scheme but retained civilian registration markings.Jackson 1988, pp. 90–91

The fifth production Heck 2C, registered G-AEGL, was flown as serial K8853 under contract 486334/36, and was used for trial installations of engines and armaments, including the development of the gun sight installation for the Spitfire and Hurricane. It was later allocated the Maintenance serial 3125M.

In March 1943, G-AEGH was impressed into service with the Royal Air Force as serial NF749 on communications and liaison duties.Moss 1962

The Parnall 382 was a newly designed two-seat open cockpit trainer, with some Heck components to meet Air Ministry Specification T.1/37. It was flown in February 1939 and later assessed at Martlesham Heath as the Heck III, but was not ordered.

The last surviving Heck was G-AEGI which was damaged beyond repair in a taxying accident on 17 June 1950. The aircraft had just come seventh in the King's Cup Race at Wolverhampton's Pendeford airfield (with a speed of 159 mph) when a landing civil Supermarine Spitfire hit the rear of the Heck and demolished it. Attempts at reconstruction failed and the aircraft was broken up in 1953.Jackson 1988, p. 91

Operators

Civil operators

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* Parnall Aircraft

Military operators

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* Royal Air Force

Specifications (Heck 2C)

See also

References

Bibliography

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{{Parnall aircraft

1930s British civil utility aircraft
Heck
Heck
Single-engined tractor aircraft
Low-wing aircraft
Aircraft first flown in 1934