[1] The aircraft was designed to comply with the US FAR 103 Ultralight Vehicles rules, including the category's maximum empty weight of 254 lb (115 kg).
The Avion features a strut-braced high-wing, single-seat, open cockpit, single pusher engine configuration, and is equipped with tricycle landing gear.
The tail is mounted to a straight aluminum tube that passes above the pusher propeller.
The fuel tank was integral with the pilot's seat and common with Brock's gyroplane designs.
The landing gear is of tricycle configuration and features a steerable nosewheel and hydraulic brakes.