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Edwards Air Force Base
Aircraft first flown in 1959
1950s United States experimental aircraft
Aircraft with contra-rotating propellers
Tiltwing aircraft
Hiller aircraft
Twin-engined four-prop tractor aircraft

Hiller X-18: page information

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Page ID1637657

Revisions0

Words531

OriginImported

CreatedJun 20, 2026, 1:16 AM

UpdatedJun 20, 2026, 1:16 AM