Hawker Duiker

infobox Aircraft
name = Duiker
type = reconnaissance
logo =
manufacturer = H.G. Hawker Engineering Co. Ltd


caption =
designer =
first flight = July 1923
introduction =
retired =
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produced =
number built = 1
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developed from =
variants with their own articles =

The Hawker Duiker was an unusual, but unsuccessful aircraft. It was the first design at Hawker under a new chief designer, Captain Thomson, in 1922. Much of the equipment and parts were proprietary and made by another aircraft company, Vickers, which also shared the airfield at Brooklands. The Duiker was a parasol wing monoplane in a period where the biplane held sway.

Design and development

The Duiker was designed to meet a requirement for a Corps Reconnaissance aircraft to carry out operations in support of the Army, which eventually was drawn up into Air Ministry specification 7/22.

The Duiker had an all-wood structure. The wing had a slight sweep-back, which gave rise to instability at all speeds, and even caused the separation of the wing from the rear struts. The fin was rather small and was typical of Sopwith design in shape. An Armstrong Siddeley Jaguar engine was initially used, but this was later changed for a Bristol Jupiter IV. The first flight took place in July 1923. Only one aircraft was built.

pecifications

aircraft specifications
plane or copter?= plane
jet or prop?= prop
ref=Hawker Aircraft since 1920 Mason 1991, pp.101-102.]
crew= one, pilot
capacity=
length main= 31 ft 5 in
length alt= 9.58 m
span main= 48 ft 5 in
span alt= 14.76 m
height main= 10 ft 7 in
height alt= 3.23 m
area main= 390 ft²
area alt= 36.2 m²
airfoil=
empty weight main= 3,950 lb
empty weight alt= 1,792 kg
loaded weight main= 4,700 lb
loaded weight alt= 2,132 kg
useful load main=
useful load alt=
max takeoff weight main=
max takeoff weight alt=
more general=* Designed Maximum Weight: 4,940 lb (2,241 kg)

engine (prop)=Bristol Jupiter IV
type of prop=9-cylinder radial engine
number of props=1
power main= 389 hp
power alt= 290 kW
power original=

max speed main= 125 mph
max speed alt= 108 knots, 201 km/h
cruise speed main= 99 mph
cruise speed alt= 86 knots, 159 km/h-->
never exceed speed main=
never exceed speed alt=
stall speed main=
stall speed alt=
range main= 340 mi
range alt=295 NM, 547 km
ceiling main= 14,500 ft
ceiling alt= 4,420 m
climb rate main=
climb rate alt=
loading main=
loading alt=
thrust/weight=
power/mass main=
power/mass alt=
more performance=*Climb to 10,000 ft (3050 m): 20 min 25 sec
*Endurance: 3¾ hours

armament=
avionics=

ee also

aircontent
related=

similar aircraft=
*Short Springbok
*Armstrong Whitworth Wolf

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see also=

References

* Mason, Francis K, "Hawker Aircraft since 1920". London:Putnam, Third edition 1991. ISBN 0 85177 839 9.

External links

* [http://www.britishaircraft.co.uk/aircraftpage.php?ID=411 British aircraft directory]