Northrop X-21
Type of aircraft / From Wikipedia, the free encyclopedia
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The Northrop X-21A was an experimental aircraft designed to test wings with laminar flow control. It was based on the Douglas WB-66D airframe, with the wing-mounted engines moved to the rear fuselage and making space for air compressors. The aircraft first flew on 18 April 1963 with NASA test pilot Jack Wells at the controls.[1] Although useful testing was accomplished, the extensive maintenance of the intricate laminar-flow system caused the end of the program.
Quick Facts X-21, Role ...
X-21 | |
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Northrop X-21A | |
Role | Experimental aircraft |
Manufacturer | Northrop |
First flight | 18 April 1963 |
Introduction | Experimental |
Retired | 1968 |
Primary user | National Aeronautics and Space Administration (NASA) |
Number built | 2 |
Developed from | Douglas B-66 Destroyer |
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