Sperwill 120

The Sperwill 120 is a British paramotor that was designed by Riann Oliver and produced by Sperwill Ltd of Bristol for powered paragliding. Now out of production, when it was available the aircraft was supplied complete and ready-to-fly.[1]

Sperwill 120
Role Paramotor
National origin United Kingdom
Manufacturer Sperwill Ltd
Designer Riann Oliver
Status Production completed

Design and development

The aircraft was designed to comply with the US FAR 103 Ultralight Vehicles rules as well as European regulations. It features a paraglider-style wing, single-place accommodation and a single 16 hp (12 kW) Radne Raket 120 engine in pusher configuration with a 3.42:1 ratio reduction drive and a three-bladed, fixed-pitch wooden propeller. The fuel tank capacity is 9 litres (2.0 imp gal; 2.4 US gal). The aircraft is built from a combination of bolted aluminium and 4130 steel tubing and dismantles for ground transport.[1]

As is the case with all paramotors, take-off and landing is accomplished by foot. Inflight steering is accomplished via handles that actuate the canopy brakes, creating roll and yaw.[1]

Specifications (120)

Data from Bertrand[1]

General characteristics

  • Crew: one
  • Empty weight: 20 kg (44 lb)
  • Fuel capacity: 9 litres (2.0 imp gal; 2.4 US gal)
  • Powerplant: 1 × Radne Raket 120 single cylinder, two-stroke, air-cooled aircraft engine, with a 3.42:1 reduction drive, 12 kW (16 hp)
  • Propellers: 3-bladed wooden, fixed-pitch
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References
  1. Bertrand, Noel; Rene Coulon; et al: World Directory of Leisure Aviation 2003-04, page 75. Pagefast Ltd, Lancaster UK, 2003. ISSN 1368-485X
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