The aircraft was designed to comply with the US
FAR 103 Ultralight Vehicles rules, including the category's maximum empty weight of . The aircraft has a standard empty weight of . It features a
strut-braced high-wing, a single-seat, open cockpit,
tricycle landing gear and a single engine in
pusher configuration. The aircraft is made from bolted-together
aluminum tubing, with the wings and tail surfaces covered in
Dacron sailcloth. Its tapered planform, single-surface, span wing is supported by both
lift struts and
jury struts. The wing features 3/4 span
ailerons. The pilot is accommodated in an open seat without a windshield. The tail surfaces are mounted on tubes that travel beside and below the pusher engine and
propeller. The tricycle landing gear features main gear suspension. The Mark IV appeared just before the collapse of the US ultralight market in 1984 and so few were produced or sold. ==Specifications (Mk IV) ==