PDQ Aircraft Products PDQ-2

The PDQ Aircraft Products PDQ-2 is a very basic light aircraft originally built in 1973 in the United States, and marketed as plans for a homebuilt aircraft.[1] It was a minimalist design, consisting of aluminum alloy tubes carrying the pilot's seat, a set of monoplane wings and a T-tail.[2][3] The pilot's position was fully exposed at the front of the aircraft.[2] Power is provided by a single engine mounted pusher-fashion on a pylon above the wings.[2][3] Originally, this was a Rockwell JLO snowmobile engine, but Ison revised the design to use a converted Volkswagen engine,[2] due to a lack of availability of the first choice of engine.[4] The heavier Volkswagen engine required an increase in structural strength, and the design was revised accordingly.[2][4] The wings have wooden spars with ribs, and skin of polyurethane foam, all coated in epoxy resin.[2][3] Fixed, tricycle undercarriage was fitted.[2]

PDQ-2
Role Sport aircraft
National origin United States
Manufacturer Homebuilt aircraft
Designer Wayne Ison
First flight 30 May 1973

The PDQ-2 uses a NACA 63A615 airfoil.[5]

Plans for the design were still marketed in 2005.[6]


Specifications

Data from Jane's All the World's Aircraft 1977–78, p.554

General characteristics

  • Crew: One pilot
  • Length: 14 ft 6 in (4.42 m)
  • Wingspan: 22 ft 0 in (6.71 m)
  • Height: 4 ft 2 in (1.27 m)
  • Empty weight: 360 lb (160 kg)
  • Gross weight: 600 lb (270 kg)
  • Powerplant: 1 × Rockwell JLO-LB-600-2 , 36 hp (27 kW)

Performance

  • Maximum speed: 80 mph (130 km/h, 70 kn)
  • Service ceiling: 10,000 ft (3,050 m)
  • Rate of climb: 500 ft/min (2.5 m/s)

Notes
  1. Taylor 1989, p.717
  2. Jane's All the World's Aircraft 1977–78, p.554
  3. Markowski 1979, p.268
  4. Ison 1976, p.36
  5. Lednicer, David (April 2007). "The Incomplete Guide to Airfoil Usage". Archived from the original on 2010-01-17. Retrieved 2009-01-04.
  6. Sirius Aviation website

References
  • Ison, Wayne (January 1976). "VW Power for the P.D.Q.-2". Sport Aviation: 36–37.
  • Jane's All the World's Aircraft 1977–78. London: Jane's Publishing.
  • Markowski, Mark (1979). The Encyclopedia of Homebuilt Aircraft. Blue Ridge Summit, Pennsylvania: TAB Books.
  • "Sirius support for the PDQ2". (archived at the Internet Archive). Retrieved 2009-01-04.
  • Taylor, Michael J. H. (1989). Jane's Encyclopedia of Aviation. London: Studio Editions.
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