Airsport Sonet

The Airsport Sonet (English: Sonnet) is a Czech ultralight aircraft, designed and produced by Airsport of Zbraslavice. The aircraft is supplied in complete, ready-to-fly form.[1][2]

Airsport Sonet
Role Ultralight aircraft
National origin Czech Republic
Manufacturer Airsport
Status In production (2015)
Developed from Airsport Sonata

Design and development

The aircraft was derived from the Airsport Sonata motor glider and designed to comply with the Fédération Aéronautique Internationale microlight rules. It features a cantilever low-wing, a T-tail, a two-seats-in-side-by-side configuration enclosed cockpit, fixed tricycle landing gear and a single engine in tractor configuration.[1][2]

The Sonet is made from composites. Its polyhedral wing comes in three optional spans: 10.2 m (33.5 ft), 11.4 m (37.4 ft) and 15 m (49.2 ft). It requires an engine of about 65 hp (48 kW) and no more than 60 kg (132 lb). Standard engines available are the 64 hp (48 kW) Rotax 582 two-stroke and the 60 hp (45 kW) HKS 700E four-stroke powerplant.[1][2][3]

Specifications (Sonet 11.4)

Data from Bayerl and Tacke[1][2]

General characteristics

  • Crew: one
  • Capacity: one passenger
  • Wingspan: 11.7 m (38 ft 5 in)
  • Wing area: 10.5 m2 (113 sq ft)
  • Empty weight: 265 kg (584 lb)
  • Gross weight: 450 kg (992 lb)
  • Fuel capacity: 60 litres (13 imp gal; 16 US gal) in two tanks
  • Powerplant: 1 × Rotax 582 twin cylinder, liquid air-cooled, two stroke, 48 kW (64 hp)

Performance

  • Maximum speed: 201 km/h (125 mph, 109 kn)
  • Cruise speed: 140 km/h (87 mph, 76 kn)
  • Stall speed: 64 km/h (40 mph, 35 kn)
  • Rate of climb: 4 m/s (790 ft/min)
  • Wing loading: 42.9 kg/m2 (8.8 lb/sq ft)

References
  1. Bayerl, Robby; Martin Berkemeier; et al: World Directory of Leisure Aviation 2011-12, page 24. WDLA UK, Lancaster UK, 2011. ISSN 1368-485X
  2. Tacke, Willi; Marino Boric; et al: World Directory of Light Aviation 2015-16, page 24. Flying Pages Europe SARL, 2015. ISSN 1368-485X
  3. Airsport (n.d.). "Sonet". Retrieved 26 April 2012.
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