Engineering:Quander Airpfeil

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Short description: German ultralight trike
Airpfeil
Role Ultralight trike
National origin Germany
Manufacturer Quander
Status In production (2014)

The Quander Airpfeil (English: Air-Arrow) is a German ultralight trike that was designed and produced by UL Flugzeugbau Quander of Petershagen. The aircraft is supplied complete and ready to fly.[1]

Design and development

The Airpfeil was designed to comply with the Fédération Aéronautique Internationale microlight category, including the category's maximum gross weight of 450 kg (992 lb). The aircraft has a maximum gross weight of 400 kg (882 lb). It features a cable-braced hang glider-style high wing, weight-shift controls, a two-seats-in-tandem open cockpit without a cockpit fairing, tricycle landing gear and a single engine in pusher configuration.[1]

The aircraft is made from bolted-together aluminum tubing, with its double surface Vento 13 m2 (140 sq ft) wing covered in Dacron sailcloth. The 9.5 m (31.2 ft) span wing is supported by a single tube-type kingpost and uses an "A" frame weight-shift control bar. The wing is supported by a three-tube tetrahedral structure, which is no longer common on modern trikes, but provides good strength at light weight. The powerplant is a twin-cylinder, liquid-cooled, two-stroke, dual-ignition 50 hp (37 kW) Rotax 582 engine.[1]

The aircraft has an empty weight of 130 kg (287 lb) and a gross weight of 400 kg (882 lb), giving a useful load of 270 kg (595 lb). With full fuel of 62 litres (14 imp gal; 16 US gal) the payload is 225 kg (496 lb).[1]

Specifications (Airpfeil with Vento 13 wing)

Data from Bayerl[1]

General characteristics

  • Crew: one
  • Capacity: one passenger
  • Wingspan: 9.5 m (31 ft 2 in)
  • Wing area: 13 m2 (140 sq ft)
  • Empty weight: 130 kg (287 lb)
  • Gross weight: 400 kg (882 lb)
  • Fuel capacity: 62 litres (14 imp gal; 16 US gal)
  • Powerplant: 1 × Rotax 582 twin cylinder, liquid-cooled, two stroke aircraft engine, 48 kW (64 hp)
  • Propellers: 3-bladed composite

Performance

  • Maximum speed: 145 km/h (90 mph, 78 kn)
  • Cruise speed: 120 km/h (75 mph, 65 kn)
  • Stall speed: 50 km/h (31 mph, 27 kn)
  • Rate of climb: 5.4 m/s (1,060 ft/min)
  • Wing loading: 30.8 kg/m2 (6.3 lb/sq ft)

References

  1. 1.0 1.1 1.2 1.3 1.4 Bayerl, Robby; Martin Berkemeier; et al: World Directory of Leisure Aviation 2011-12, page 219. WDLA UK, Lancaster UK, 2011. ISSN 1368-485X

External links