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gptkbp:instanceOf
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gptkb:aircraft
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gptkbp:basedOn
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gptkb:Douglas_WB-66D_Destroyer
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gptkbp:category
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gptkb:X-planes_(United_States)
experimental aircraft of the United States
Douglas aircraft
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gptkbp:crew
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4
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gptkbp:designation
|
X-21A
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gptkbp:developedBy
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gptkb:United_States_Air_Force
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gptkbp:emptyWeight
|
47,000 lb (21,319 kg)
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gptkbp:firstFlight
|
18 April 1963
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gptkbp:height
|
23 ft 7 in (7.19 m)
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|
https://www.w3.org/2000/01/rdf-schema#label
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Douglas X-21
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gptkbp:length
|
75 ft 2 in (22.91 m)
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gptkbp:manufacturer
|
gptkb:Douglas_Aircraft_Company
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gptkbp:maximumSpeed
|
460 mph (740 km/h)
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|
gptkbp:maxTakeoffWeight
|
83,000 lb (37,648 kg)
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gptkbp:notableFeature
|
laminar flow control wing
|
|
gptkbp:numberBuilt
|
2
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gptkbp:powerplant
|
2 × Allison J71-A-13 turbojets
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gptkbp:primaryUser
|
gptkb:United_States_Air_Force
|
|
gptkbp:purpose
|
test laminar flow control
|
|
gptkbp:range
|
2,000 mi (3,200 km)
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|
gptkbp:role
|
experimental research aircraft
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gptkbp:serviceCeiling
|
40,000 ft (12,000 m)
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gptkbp:status
|
retired
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gptkbp:testLocation
|
gptkb:Edwards_Air_Force_Base
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gptkbp:thrust
|
10,200 lbf (45.4 kN) each
|
|
gptkbp:wingspan
|
117 ft 5 in (35.81 m)
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gptkbp:bfsParent
|
gptkb:Douglas_Aircraft_Company
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gptkbp:bfsLayer
|
5
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