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Aircraft with retractable tricycle landing gear
Twinjets
High-wing aircraft
Northrop aircraft
Edwards Air Force Base
Aircraft first flown in 1963
1960s United States experimental aircraft

Northrop X-21: page information

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Page ID1258713

Revisions0

Words640

OriginImported

CreatedJun 19, 2026, 6:16 PM

UpdatedJun 19, 2026, 6:16 PM