The Deekay Knight was a British two-seat cabin monoplane designed by S.C.Hart-Still and built in 1937 by the Deekay Aircraft Corporation at Broxbourne in Hertfordshire, England.[1] It was built to test methods of wing construction that would later be suitable for plastic skinning.
Knight
Role
Two-seat cabin monoplane
National origin
United Kingdom
Manufacturer
Deekay Aircraft Corporation
Designer
Sydney Charles Hart-Still
First flight
1937
Number built
1
Developmentedit
The Knight was a conventional looking low-wing monoplane, with a fixed tailwheel landing gear, the main legs housed in trouser fairings and powered by a nose-mounted 90 hp (67 kW) Blackburn Cirrus Minor piston engine.[1] It had an enclosed cabin with side-by-side seating for two.[2] It had an unusual wing construction which used four spars and interspars instead of ribs.[3] Though the wing was made of wood throughout, with a stressed plywood skin, the purpose of its novel construction was to explore methods suitable for later use with plastic materials.[3][4] The wing was tested at the Royal Aircraft Establishment Farnborough and the root fittings but not the wing failed at 12.3 times the weight of the aircraft, well beyond the target load factor of 9.[1] Only one aircraft, registeredG-AFBA,[5] was built which was scrapped sometime during the Second World War.[1][2]
Specificationsedit
Data from Jane's All the World's Aircraft 1938,[6] The Illustrated Encyclopaedia of Aircraft,[1] British civil aircraft since 1919 Volume II[2]
General characteristics
Crew: 1
Capacity: 1
Length: 22 ft 10 in (6.96 m)
Wingspan: 31 ft 6 in (9.60 m)
Height: 6 ft 7 in (2.01 m)
Wing area: 140 sq ft (13 m2)
Empty weight: 850 lb (386 kg)
Gross weight: 1,450 lb (658 kg) normal
1,300 lb (590 kg) aerobatic
Fuel capacity: 20 imp gal (24 US gal; 91 L) in a tank behind the seats
Powerplant: 1 × Blackburn Cirrus Minor 4-cylinder air-cooled inverted in-line piston engine, 90 hp (67 kW)
Propellers: 2-bladed fixed-pitch propeller
Performance
Maximum speed: 125 mph (201 km/h, 109 kn)
Cruise speed: 105 mph (169 km/h, 91 kn) at 3,000 ft (914 m) w
Landing speed without flaps: 48 mph (42 kn; 77 km/h)
Landing speed with flaps: 39 mph (34 kn; 63 km/h)
Service ceiling: 17,500 ft (5,300 m)
Rate of climb: 800 ft/min (4.1 m/s)
Referencesedit
^ abcdeThe Illustrated Encyclopaedia of Aircraft. London: Orbis Publications. 1985. p. 1420.
^ abcJackson, A. J. (1973). British civil aircraft since 1919 Volume II (2nd ed.). London: Putnam. p. 300. ISBN9780370100104.
^ ab"Towards Thermoplastics: An Interesting Form of Wing Construction". Flight. Vol. XXXII, no. 1491. 22 July 1937. p. 100.
^(PDF). United Kingdom Civil Aviation Authority. Archived from the original (PDF) on 6 June 2011. Retrieved 5 August 2009.
^Grey, C.G.; Bridgman, Leonard, eds. (1938). Jane's All the World's Aircraft 1938. London: Sampson Low, Marston & company, ltd. pp. 35c–36c.
Works citededit
Grey, C.G. (1972). Jane's All the World's Aircraft 1938. London: David & Charles. ISBN0-715-35734-4.
January 01, 1970
deekay, knight, british, seat, cabin, monoplane, designed, hart, still, built, 1937, deekay, aircraft, corporation, broxbourne, hertfordshire, england, built, test, methods, wing, construction, that, would, later, suitable, plastic, skinning, knight, role, sea. The Deekay Knight was a British two seat cabin monoplane designed by S C Hart Still and built in 1937 by the Deekay Aircraft Corporation at Broxbourne in Hertfordshire England 1 It was built to test methods of wing construction that would later be suitable for plastic skinning Knight Role Two seat cabin monoplane National origin United Kingdom Manufacturer Deekay Aircraft Corporation Designer Sydney Charles Hart Still First flight 1937 Number built 1Development editThe Knight was a conventional looking low wing monoplane with a fixed tailwheel landing gear the main legs housed in trouser fairings and powered by a nose mounted 90 hp 67 kW Blackburn Cirrus Minor piston engine 1 It had an enclosed cabin with side by side seating for two 2 It had an unusual wing construction which used four spars and interspars instead of ribs 3 Though the wing was made of wood throughout with a stressed plywood skin the purpose of its novel construction was to explore methods suitable for later use with plastic materials 3 4 The wing was tested at the Royal Aircraft Establishment Farnborough and the root fittings but not the wing failed at 12 3 times the weight of the aircraft well beyond the target load factor of 9 1 Only one aircraft registered G AFBA 5 was built which was scrapped sometime during the Second World War 1 2 Specifications editData from Jane s All the World s Aircraft 1938 6 The Illustrated Encyclopaedia of Aircraft 1 British civil aircraft since 1919 Volume II 2 General characteristicsCrew 1 Capacity 1 Length 22 ft 10 in 6 96 m Wingspan 31 ft 6 in 9 60 m Height 6 ft 7 in 2 01 m Wing area 140 sq ft 13 m2 Empty weight 850 lb 386 kg Gross weight 1 450 lb 658 kg normal 1 300 lb 590 kg aerobatic dd dd dd Fuel capacity 20 imp gal 24 US gal 91 L in a tank behind the seats Powerplant 1 Blackburn Cirrus Minor 4 cylinder air cooled inverted in line piston engine 90 hp 67 kW Propellers 2 bladed fixed pitch propeller Performance Maximum speed 125 mph 201 km h 109 kn Cruise speed 105 mph 169 km h 91 kn at 3 000 ft 914 m w Landing speed without flaps 48 mph 42 kn 77 km h Landing speed with flaps 39 mph 34 kn 63 km h Service ceiling 17 500 ft 5 300 m Rate of climb 800 ft min 4 1 m s References edit a b c d e The Illustrated Encyclopaedia of Aircraft London Orbis Publications 1985 p 1420 a b c Jackson A J 1973 British civil aircraft since 1919 Volume II 2nd ed London Putnam p 300 ISBN 9780370100104 a b Towards Thermoplastics An Interesting Form of Wing Construction Flight Vol XXXII no 1491 22 July 1937 p 100 Grey 1972 pp 35c 36c Registration G AFBA PDF United Kingdom Civil Aviation Authority Archived from the original PDF on 6 June 2011 Retrieved 5 August 2009 Grey C G Bridgman Leonard eds 1938 Jane s All the World s Aircraft 1938 London Sampson Low Marston amp company ltd pp 35c 36c Works cited edit Grey C G 1972 Jane s All the World s Aircraft 1938 London David amp Charles ISBN 0 715 35734 4 Retrieved from https en wikipedia org w index php title Deekay Knight amp oldid 1131923348, wikipedia, wiki, book, books, library,
