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Human-Powered Vehicle Speed Competition

nsasch writes "Over at Battle Mountain, NV on SR-305, for the 2008 Battle Mountain World Human Powered Speed Challenge (mirror), some of the best cyclists will be competing in human-powered vehicles to break speed records. The current world record was set in 2002 at the same location with a speed of 129.6 km/h (81 mph) by Sam Whittingham in a custom-made recumbent bike. A lot of advanced aerospace engineering goes into these machines to reach highway speeds on less than one horsepower. Take a look around their site for pictures of the event and this year's records. It ends 20 September, so more pictures and results will be coming."

3 of 102 comments (clear)

  1. Human-Powered, eh? by Chris+Burke · · Score: 4, Interesting

    I see they're pretty much all recumbent bikes, and that's pretty cool and all, and 81 mph is impressive and stuff, but I think maybe they're perhaps suffering from a lack of imagination. Based off the common usages of "Solar-Powered" and "Diesel-Powered", would it be safe to assume that Human-Powered could also mean Human-Fueled?

    Or should I read the fine print before entering the contest?

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  2. Re:Recumbents by EaglemanBSA · · Score: 4, Interesting

    Actually, recumbents are just fine on hills, they just use different, rather untrained muscles - it takes time to get these into shape. Human power production and biomechanics are my area of study, and I've just finished a project developing a human-powered utility vehicle. It is truly amazing what you can do with 150 watts of power and some creative design.

    I'd really like to see recumbents become more mainstream here in the US. They can make riding a lot more pleasant, and can make trips of up to 20-30 miles feasible for many people who thought otherwise. With the small market penetration though, they're in a vicious circle of high cost (typically >$1.5k). You can see my HPUV in action here.

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  3. Re:More Information on the event... by Anonymous Coward · · Score: 4, Interesting

    Putting a UCI-class rider in one of those things would be great to see. The speeds would be off the charts. That would be the quickest end to your pro career. Much worse than getting caught for doping.

    There are articles of agreement between IHPVA and UCI and, over the years, many UCI-class riders have ridden in hpv's (at HPV events)--so there is no "political" problem.

    The problem is teaching a rider how to do a flying 200 meter speed run--it is not like a normal bicycle because the gearing is so much higher. Acceleration is very slow at higher speeds and the rider has to learn to accelerate carefully over several minutes. The goal is to pick a pace so that you exhaust yourself (run out of breath!) just as you enter the timing traps. Bottom line--just putting a strong rider into an hpv will not guarantee record speeds, it takes practice and thought.