Walkerjet Spider

Last updated
Spider
Role Paramotor
National origin Czech Republic
Manufacturer Walkerjet
Designer Victor Procházka
Status Production completed

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

Czech Republic Republic in Central Europe

The Czech Republic, also known by its short-form name, Czechia, is a landlocked country in Central Europe bordered by Germany to the west, Austria to the south, Slovakia to the east and Poland to the northeast. The Czech Republic covers an area of 78,866 square kilometres (30,450 sq mi) with a mostly temperate continental climate and oceanic climate. It is a unitary parliamentary republic, with 10.6 million inhabitants; its capital and largest city is Prague, with 1.3 million residents. Other major cities are Brno, Ostrava, Olomouc and Pilsen. The Czech Republic is a member of the European Union (EU), NATO, the OECD, the United Nations, the OSCE, and the Council of Europe.

Paramotor Small manned parachute aircraft

Paramotor is the generic name for the harness and propulsive portion of a powered paraglider ("PPG"). There are two basic types of paramotors: foot launch and wheel launch.

Walkerjet is a Czech aircraft manufacturer based in Tatiná and founded by Victor Procházka. The company specializes in the design and manufacture of paramotors in the form of ready-to-fly aircraft for the US FAR 103 Ultralight Vehicles rules and the European microlight category.

Contents

Design and development

The Spider 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 14 hp (10 kW) Radne Raket 120 engine in pusher configuration with a 3:1 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). The aircraft is built from a combination of bolted aluminium and 4130 steel tubing. The propeller cage can be dismantled for ground transport or storage. [1]

The Radne Raket 120 is a lightweight single cylinder, two-stroke aircraft engine used for powered hang gliders, paramotors and ultralight aircraft that is built by Radne Motor AB of Haninge, Sweden.

Pusher configuration arrangement of propellers on an aircraft to face rearward

In a vehicle with a pusher configuration, the propeller(s) are mounted behind their respective engine(s). According to British aviation author Bill Gunston, a "pusher propeller" is one mounted behind the engine, so that the drive shaft is in compression.

Reduction drive Device, containing a different gears.

A reduction drive is a mechanical device to shift rotational speed. A planetary reduction drive is a small scale version using ball bearings in an epicyclic arrangement instead of toothed gears.

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 (Spider)

Data from Bertrand [1]

General characteristics

Aircraft engine Engine designed for use in powered aircraft

An aircraft engine is a component of the propulsion system for an aircraft that generates mechanical power. Aircraft engines are almost always either lightweight piston engines or gas turbines, except for small multicopter UAVs which are almost always electric aircraft.

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References

  1. 1 2 3 4 Bertrand, Noel; Rene Coulon; et al: World Directory of Leisure Aviation 2003-04, page 76. Pagefast Ltd, Lancaster UK, 2003. ISSN 1368-485X
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