[4] The Champion was created by scaling down the Avid Mark IV and narrowing the wider fuselage into a single-seat design intended to comply with the US FAR 103 Ultralight Vehicles category.
[1][5] The design is a conventional tractor configuration, featuring tube and aircraft fabric construction.
The aluminum wing spars are predrilled and die-drawn, to support prebuilt birch plywood ribs, covered with doped Dacron fabric.
Like other Avid designs, the wing has an under-cambered airfoil, Junkers style ailerons and scalloped trailing edges.
[1][3][5] The Champion only meets the US FAR 103 ultralight vehicle category maximum empty weight limit of 254 lb (115 kg), with the lightest of single cylinder, two-stroke engines installed, such as the 28 hp (21 kW) Rotax 277 and the removal of the cowling, brakes, doors and most of the instruments.
"[3] With the Rotax 447 engine, the aircraft can take-off in under 100 ft (30 m), as one owner explained: "You'd better be ready when you advance the throttle because the plane will jump off the ground within the next three seconds!"