Pazmany PL-4

The Pazmany PL-4A is a single-seat, single-engine sport aircraft developed in the United States and first flown in 1972. It is marketed for homebuilding from plans, and 686 sets had sold by 1985. The PL-4A is a conventional, low-wing cantilever monoplane with an enclosed cabin and fixed, tailwheel undercarriage. The design features a T-tail, chosen to facilitate folding the wings. Construction throughout is of metal, using standard extruded sections for the longerons and pop rivets as the basic fastener. The standard powerplant is a Volkswagen air-cooled engine of 60 hp Construction time is estimated to be around 1,000–1,500 hours.

The PL-4A won the "Outstanding New Design" and "Outstanding Contribution to Low-Cost Flying" awards at the 1972 EAA Fly-In. By 2000 more than 50 had been built and flown.

Variants

 * Pazmany PL-4A: Standard single seater, normally powered by a 60 hp Volkswagen air-cooled engine with V-belt drive reduction.
 * Denight 100 D2 Special: Modified PL4A design to seat two side by side. Main differences are an increase in length by 17 in (450 mm) and in fuselage width by 12 in (305 mm), a more powerful 115 hp (86 kW) Avco Lycoming O-235 flat-four engine and a conventional tail. Maximum take-off weight is 1,250 lb (567 kg).