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Hiller X-18 Tilt-Wing V/STOL Research Aircraft Family

The Hiller X-18 was a single-aircraft tilt-wing V/STOL demonstrator built to investigate the feasibility and control problems of large wing-and-engine assemblies rotating from conventional flight to vertical lift. Its 20-flight program explored tilt-wing transition and hover control, ended after a final-flight loss of control, and informed the later XC-142 transport design.

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Identity

Aliases
X-18Hiller X-18Fairchild-Hiller X-18Tilt-Wing V/STOL Demonstrator
Family Name
Hiller X-18
Full Name
Hiller X-18 Tilt-Wing V/STOL Research Aircraft Family
Roles
militaryexperimentalresearchtechnology_demonstrator
Status
retired
Type
aircraft

Details

Aircraft Specs
Configuration
powered_lift
Operating Modes
land
Takeoff Landing Capabilities
vtol
Description
The Hiller X-18 was a single-aircraft tilt-wing V/STOL demonstrator built to investigate the feasibility and control problems of large wing-and-engine assemblies rotating from conventional flight to vertical lift. Its 20-flight program explored tilt-wing transition and hover control, ended after a final-flight loss of control, and informed the later XC-142 transport design.
First Flight Year
1,959

Links

Assets & Meta

Creation Time
August 15, 2026 at 03:39:53 UTC
Updated Time
August 15, 2026 at 03:39:53 UTC
Hiller X-18 Tilt-Wing V/STOL Research Aircraft Family - AeroVia