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The Shweeb Human-powered monorail

[2008-7-25]

Tag : built-in circuit

July 23, 2008 The Shweeb is a monorail for human-powered vehicles.It consists of two 200metre long overhead rail circuits that varyin height between two and four meters above the ground. Under thetracks hang high performance pedal powered vehicles. Between oneand five vehicles can be loaded onto each track enabling teams torace each other or race against the clock. Conceived in Tokyo bydesigner Geoffrey Barnett, the adventure park ride he built in NewZealand is partially a proof-of-concept for an ingenious, highefficiency, no emission urban transport system.
 
The Shweeb Race thru Space adventure park ride is part of the Agroventures all weather adventure centre within the grounds of the worldfamous Agrodome near Rotorua in New Zealand. Other adventuresavailable alongside the Shweeb include the Swoop (drops you from 40metres high in a hang gliding harness attached to a cable), theFreefall Xtreme (suspends you 4 meters high on an inverted windtunnel), the Agrojet (450 bhp 13 ft jet boat) and the 43metre-highRotorua Bungy.
 
Given the levels of adrenalin involved in that lot, thehuman-powered Shweeb surprisingly holds its own. As the bikes runon low-resistance tracks and the pods are far more aerodynamicallyefficient than a bicycle, with less frontal area (the rider isrecumbent), most riders can see speeds of 45 kmh and on a longercircuit with a much longer straight, much higher speeds can beexpected. Whatsmore, in corners, the pods swing out as much as 60degrees on tight turns, but unlike a bike or motorcycle, there isno danger of losing traction and crashing. Those who have tried itreport exceptional fun.'
 
Recently, fully-faired recumbent bicycles have attained speeds ofover 90kph (56mph) on paved . However, recumbent bicycles areunstable, highly-susceptible to side-winds topple and their lowprofile makes them a dangerous prposition to use in traffic due totheir low visibility.
 
Barnett has spent six years developing how to efficiently transferpedal power to drive wheels enclosed within a monorail track whileallowing the vehicle to swing freely underneath. The hard wheels onthe steel rail mean that there is very little rolling resistance.

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