|National origin||United States|
|Manufacturer||Pazmany Aircraft Corporation/Homebuilt|
|First flight||12 July 1972|
|Number built||more than 50|
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 (45 kW) Construction time is estimated to be around 1,000–1,500 hours.
- Pazmany PL-4A
- Standard single seater, normally powered by a 60 hp (45 kW) 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).
Data from Jane's All the World's Aircraft 1985–86, p.608
- Crew: One pilot
- Length: 16 ft 7 in (5.04 m)
- Wingspan: 26 ft 8 in (8.13 m)
- Height: 5 ft 8 in (1.73 m)
- Wing area: 89 ft2 (8.3 m2)
- Empty weight: 578 lb (262 kg)
- Gross weight: 850 lb (385 kg)
- Powerplant: 1 × Converted Volkswagen air-cooled engine, 50 hp (38 kW)
- Maximum speed: 125 mph (201 km/h)
- Range: 340 miles (545 km)
- Service ceiling: 13,000 ft (3,960 m)
- Rate of climb: 650 ft/min (3.3 m/s)
- Taylor 1989, p.717
- Jane's All the World's Aircraft 1985–86, p.608
- Markowski 1979, p.241
- "Pazmany's PL-4 Features 'T'-tail and VW engine" 1972, p.40
- Markowski 1979, p.245
- "Pazmany's PL-4 Features 'T'-tail and VW engine" 1972, p.43
- Pazmany 1973, p.39
- Bayerl, Robby; Martin Berkemeier; et al: World Directory of Leisure Aviation 2011-12, page 114. WDLA UK, Lancaster UK, 2011. ISSN 1368-485X
- Markowski 1979, p.246
- Dwiggins 1973, p.78
- Simpson 2001, p.418
- Tacke, Willi; Marino Boric; et al: World Directory of Light Aviation 2015-16, page 121. Flying Pages Europe SARL, 2015. ISSN 1368-485X
- Jane's All the World's Aircraft 1984/5 p.571
- Dwiggins, Don (April 1973). "Pazmany VW-Engine Homebuilt". Plane & Pilot: 76–79.
- Taylor, John W. R. (1984). Jane's All the World's Aircraft 1984-1985. London: Jane's Publishing Co. ISBN 0710608012.
- Jane's All the World's Aircraft 1985–86. London: Jane's Publications.
- Markowski, Mark (1979). The Encyclopedia of Homebuilt Aircraft. Blue Ridge Summit, Pennsylvania: TAB Books. ISBN 0-8306-2256-X.
- Pazmany, Ladislao (March 1973). "The Pazmany PL-4A is flying". Sport Aviation: 32–39.
- "Pazmany's PL-4 Features 'T'-tail and VW engine". Sport Flying: 40–43. October 1972.
- Simpson, Rod (2001). Airlife's World Aircraft. Shrewsbury: Airlife Publishing Ltd. ISBN 978-1-84037-115-4.
- Taylor, Michael J. H. (1989). Jane's Encyclopedia of Aviation. London: Studio Editions. ISBN 0-7106-0710-5.