X-Planes (1974)

1,331 views · Published 21 February 2012 · 0:33 · Indexed 12 November 2026

Channel: AIRBOYD · 2012 · Autos & Vehicles

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Credit: NASA/Langley Research Center (NASA-LaRC)
Footage (in flight) of various test aircraft or 'X-planes', including: Douglas D558 (Phase 1) Northrop X4 Douglas D558 (Phase 2) Bell X5 Douglas X3  

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