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NASA AD-1 Oblique-Wing Research Aircraft

The AD-1 was a low-speed research aircraft built to investigate an oblique wing that pivoted across the fuselage as a single structure. NASA used it to examine handling and aerodynamic behaviour with the wing set at different sweep angles. It first flew in December 1979 and completed 79 flights before its final flight in August 1982. The programme demonstrated the concept at low speed while revealing structural flexibility and coupled handling effects at larger sweep angles. Its results did not validate a full-size transonic transport.

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Identity

Aliases
AD-1Ames-Dryden-1Ames-Dryden AD-1
Family Name
NASA AD-1
Full Name
NASA AD-1 Oblique-Wing Research Aircraft
Roles
researchexperimental
Status
retired
Type
aircraft

Details

Aircraft Specs
Configuration
fixed_wing
Description
The AD-1 was a low-speed research aircraft built to investigate an oblique wing that pivoted across the fuselage as a single structure. NASA used it to examine handling and aerodynamic behaviour with the wing set at different sweep angles. It first flew in December 1979 and completed 79 flights before its final flight in August 1982. The programme demonstrated the concept at low speed while revealing structural flexibility and coupled handling effects at larger sweep angles. Its results did not validate a full-size transonic transport.
First Flight Year
1,979
Last Flight Year
1,982

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Creation Time
October 17, 2026 at 13:24:04 UTC
Updated Time
October 17, 2026 at 13:24:04 UTC