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Air Sylphe 447

From Wikipedia, the free encyclopedia

447
Role Powered parachute
National origin France
Manufacturer Air Sylphe
Status Production completed

The Air Sylphe 447 is a French powered parachute that was designed and produced by Air Sylphe of Villereau, Nord. Now out of production, the aircraft was supplied as a complete ready-to-fly-aircraft.[1]

The company appears to have gone out of business and ended production in the end of 2007.[2]

Design and development

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The Air Sylphe 447 was designed to comply with the U.S. FAR 103 Ultralight Vehicles rules, including the category's maximum empty weight of 115 kg (254 lb). The aircraft has a standard empty weight of 88 kg (194 lb). It features a 35 m2 (380 sq ft) parachute-style wing, single-place accommodation, tricycle landing gear and a single 40 hp (30 kW) Rotax 447 engine in pusher configuration. The 50 hp (37 kW) Rotax 503 engine was a factory option.[1]

The aircraft carriage is built from metal tubing with a ducted fan derived from an industrial air ventilation system. The main landing gear incorporates spring rod suspension.[1]

The aircraft has an empty weight of 88 kg (194 lb) and a gross weight of 210 kg (463 lb), giving a useful load of 122 kg (269 lb). With full fuel of 18 litres (4.0 imp gal; 4.8 US gal) the payload for crew and baggage is 109 kg (240 lb). A version with a gross weight of 310 kg (683 lb) to accommodate heavier pilots was also built.[1]

Specifications (Air Sylphe 447)

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Data from Bertrand[1]

General characteristics

  • Crew: one
  • Wingspan: 12.20 m (40 ft 0 in)
  • Wing area: 35 m2 (380 sq ft)
  • Aspect ratio: 4.4:1
  • Empty weight: 88 kg (194 lb)
  • Gross weight: 210 kg (463 lb)
  • Fuel capacity: 18 litres (4.0 imp gal; 4.8 US gal)
  • Powerplant: 1 × Rotax 447 twin cylinder, two-stroke, air-cooled aircraft engine, 30 kW (40 hp)

Performance

  • Maximum speed: 45 km/h (28 mph, 24 kn)
  • Stall speed: 20 km/h (12 mph, 11 kn)
  • Rate of climb: 2 m/s (390 ft/min)
  • Wing loading: 6.0 kg/m2 (1.2 lb/sq ft)

References

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  1. ^ a b c d e Bertrand, Noel; Rene Coulon; et al: World Directory of Leisure Aviation 2003-04, page 79. Pagefast Ltd, Lancaster UK, 2003. ISSN 1368-485X
  2. ^ Air Sylphe (2 February 2011). "Air Sylphe". Archived from the original on 25 June 2007. Retrieved 26 May 2015.