Statements (18)
| Predicate | Object |
|---|---|
| gptkbp:instanceOf |
gptkb:aircraft
|
| gptkbp:basedOn |
gptkb:Douglas_WB-66D
|
| gptkbp:crew |
5
|
| gptkbp:firstFlight |
1963
|
| gptkbp:height |
8.4 m
|
| https://www.w3.org/2000/01/rdf-schema#label |
X-21
|
| gptkbp:length |
25.3 m
|
| gptkbp:manufacturer |
gptkb:Douglas_Aircraft_Company
|
| gptkbp:maximumSpeed |
970 km/h
|
| gptkbp:numberBuilt |
2
|
| gptkbp:powerplant |
2 × General Electric J79-GE-13 turbojets
|
| gptkbp:purpose |
laminar flow control research
|
| gptkbp:role |
gptkb:aircraft
|
| gptkbp:status |
retired
|
| gptkbp:usedBy |
gptkb:United_States_Air_Force
|
| gptkbp:wingspan |
37.6 m
|
| gptkbp:bfsParent |
gptkb:NASA_Armstrong_Flight_Research_Center
|
| gptkbp:bfsLayer |
6
|