The aircraft was designed to comply with the US FAR 103 Ultralight Vehicles rules, including the category's maximum empty weight of 2540NaN0. The aircraft has a standard empty weight of 2200NaN0, although some sources claim an empty weight of 3050NaN0, putting it out of category. It features a strut-braced low-wing, a double tail, a single-seat, open cockpit, tricycle landing gear and a single engine in pusher configuration. The aircraft is named after the Second World War vintage Lockheed P-38 Lightning, with which it shares its dual tail layout.
The aircraft is made from aluminum tubing, with the wing leading edge made from birch plywood, supported by foam and wooden wing ribs. The wings and tail surfaces are covered in doped aircraft fabric. Its 281NaN1 span wing employs a NACA 23015 airfoil and features flaperons. The wing is supported by lift struts that are mounted to a central inverted "V" kingpost. The landing gear has bungee cord suspension and the nose wheel is steerable. The Cuyuna 430R powerplant is mounted behind the pilot with the propeller above the twin tail booms[3]
