Northrop X-21
E20316
The Northrop X-21 was an experimental U.S. jet aircraft of the 1960s designed to test laminar-flow control technology for improved aerodynamic efficiency.
Observed surface forms (1)
| Surface form | Occurrences |
|---|---|
| X-21 | 1 |
Statements (48)
| Predicate | Object |
|---|---|
| instanceOf |
experimental aircraft
ⓘ
jet aircraft ⓘ research aircraft ⓘ |
| aircraftCategory | fixed-wing aircraft ⓘ |
| aircraftConfiguration | twin-engine jet ⓘ |
| aircraftType | subsonic aircraft ⓘ |
| airframeOrigin |
Douglas C-47 Skytrain
ⓘ
surface form:
Douglas DC-3 derivative
|
| airIntakeLocation | underwing engine nacelles ⓘ |
| countryOfOrigin |
United States of America
ⓘ
surface form:
United States
|
| crew | 2 ⓘ |
| designation |
Northrop X-21
self-linksurface differs
ⓘ
surface form:
X-21
|
| designedFor |
improved aerodynamic efficiency
ⓘ
laminar-flow control technology testing ⓘ |
| engineConfiguration | underwing pods ⓘ |
| engineType | turbofan ⓘ |
| era | 1960s ⓘ |
| firstFlightDate | 1963 ⓘ |
| fullName | Northrop X-21 self-link ⓘ |
| landingGearType | tricycle landing gear ⓘ |
| manufacturer |
Northrop Grumman
ⓘ
surface form:
Northrop Corporation
|
| notableFeature |
extensive wing suction system
ⓘ
highly instrumented research aircraft ⓘ |
| numberBuilt | 2 ⓘ |
| operatorType | military research organization ⓘ |
| powerplantCount | 2 ⓘ |
| primaryRole |
aerodynamic research
ⓘ
laminar-flow control testbed ⓘ |
| programGoal | demonstrate practical laminar-flow control on a transport-type wing ⓘ |
| programOutcome | technology demonstrator ⓘ |
| programSponsor |
NASA
ⓘ
United States Air Force ⓘ |
| programType | X-plane program ⓘ |
| propulsionType | jet ⓘ |
| registrationType | military experimental designation ⓘ |
| researchDomain |
aerodynamics
ⓘ
boundary-layer control ⓘ |
| researchFocus |
drag reduction
ⓘ
fuel efficiency improvement ⓘ high-Reynolds-number laminar flow ⓘ |
| researchUser | NASA ⓘ |
| status | retired ⓘ |
| tailConfiguration | conventional tail ⓘ |
| testEnvironment | flight testing ⓘ |
| usedBy | United States Air Force ⓘ |
| wingFeature |
boundary-layer suction
ⓘ
laminar-flow control system ⓘ perforated wing surface ⓘ |
| wingPosition | low-wing configuration ⓘ |
Referenced by (3)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
X-21