Engineering:Walkerjet Simon

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Short description: Czech paramotor
Simon
Role Paramotor
National origin Czech Republic
Manufacturer Walkerjet
Designer Victor Procházka
Status Production completed

The Walkerjet Simon is a family of Czech paramotor designs that were designed by Victor Procházka and produced by Walkerjet of Třemošná for powered paragliding. Now out of production, when they were available the aircraft were supplied complete and ready-to-fly.[1]

Design and development

The series 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 or two-place-in-tandem accommodation and a single 28 hp (21 kW) Simonini Mini 2 Plus engine in pusher configuration with a 2.2:1 ratio reduction drive and a 110 to 130 cm (43 to 51 in) diameter two-bladed wooden propeller. The fuel tank capacity is 8 litres (1.8 imp gal; 2.1 US gal). The aircraft are built from a combination of bolted aluminium and 4130 steel tubing. The propeller cage can be dismantled for ground transport or storage.[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]

Variants

Simon
Single-seat model with a 28 hp (21 kW) Simonini Mini 2 Plus engine in pusher configuration with a 2.2:1 ratio reduction drive and a 110 cm (43 in) diameter two-bladed wooden propeller. The fuel tank capacity is 8 litres (1.8 imp gal; 2.1 US gal) and the empty weight is 27 kg (60 lb).[1]
Simon +
Single-seat model with a 28 hp (21 kW) Simonini Mini 2 Plus engine in pusher configuration with a 2.2:1 ratio reduction drive and a 130 cm (51 in) diameter two-bladed wooden propeller. The fuel tank capacity is 8 litres (1.8 imp gal; 2.1 US gal) and the empty weight is 28 kg (62 lb).[1]
Simon Compact
Single-seat model with a 28 hp (21 kW) Simonini Mini 2 Plus engine in pusher configuration with a 2.2:1 ratio reduction drive and a 130 cm (51 in) diameter two-bladed wooden propeller. The fuel tank capacity is 8 litres (1.8 imp gal; 2.1 US gal) and the empty weight is 28 kg (62 lb).[1]
Simon Tandem
Two-seat model with a 28 hp (21 kW) Simonini Mini 2 Plus engine in pusher configuration with a 2.2:1 ratio reduction drive and a 130 cm (51 in) diameter two-bladed wooden propeller. The fuel tank capacity is 8 litres (1.8 imp gal; 2.1 US gal) and the empty weight is 29 kg (64 lb).[1]

Specifications (Simon)

Data from Bertrand[1]

General characteristics

  • Crew: one
  • Empty weight: 27 kg (60 lb)
  • Fuel capacity: 8 litres (1.8 imp gal; 2.1 US gal)
  • Powerplant: 1 × Simonini Mini 2 Plus single cylinder, two-stroke, air-cooled aircraft engine, with a 2.2:1 reduction drive, 21 kW (28 hp)
  • Propellers: 2-bladed wooden, fixed pitch

References

  1. 1.0 1.1 1.2 1.3 1.4 1.5 1.6 1.7 Bertrand, Noel; Rene Coulon; et al: World Directory of Leisure Aviation 2003-04, page 76. Pagefast Ltd, Lancaster UK, 2003. ISSN 1368-485X