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HelioOther aircraft · Fixed-wing · United States

AU-24 Stallion

Seats
10 10
Power
681 hp508 kW
Cruise
139 kt258 km/h
Helio AU-24 Stallion
Helio AU-24 Stallion
Photo: San Diego Air and Space Museum Archive · Public domainPhoto: San Diego Air and Space Museum Archive · Public domain

About the AU-24 Stallion

The Helio AU-24 Stallion is a fixed-wing, single-engine utility aircraft developed in the United States. Conceived originally as a turboprop-powered variant of an existing liaison design, it evolved into a larger, distinct airframe configured for short takeoff and landing performance. The layout incorporates specialized features tailored for specialized military roles and tactical support missions.

Initial development progressed through prototype testing before drawing interest from defense buyers for evaluation programs. Militarized versions were fitted with robust turboprop power plants, specialized armament options, and structural hardpoints for external ordnance. While commercial prospects were limited by high manufacturing costs, several examples were eventually delivered to foreign military operators for border surveillance and counter-infiltration duties.

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