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Re:Atlas: A Human-Powered Helicopter by starpilot on Friday May 18, 2012 @03:03PM (#3993370)
Wow. I spent most of my undergrad extracurricular effort working on my university's HPH team. Incredibly difficult challenges in aerodynamics and structures. The goal is to go for a whole minute and reach 3 m altitude. In the few decades the prize has been offered, the record has been seconds and centimeters high.
Re:Atlas: A Human-Powered Helicopter by Unoeufisenough on Friday May 18, 2012 @04:38PM (#3993804)
Is storing energy against the rules? for example pedaling for an hour or two to store up say mechanical energy in a flywheel, spring tension, hydraulic pressure or other means then just put the rotors in gear to lift off?
Re:Atlas: A Human-Powered Helicopter by heretohelp on Friday May 18, 2012 @04:49PM (#3993869)
I have to assume so. Leverage is presumably allowable though.

Once you're in the business of storing mechanical energy, you haven't solved the problem of sustained human-powered flight and you're really just a technology epoch away from using a motor and a capacitor.

Re:Atlas: A Human-Powered Helicopter by option_greek on Friday May 18, 2012 @03:18PM (#3993427)
I can understand the altitude limitation but whats limiting hover time.. losing balance ?
Re:Atlas: A Human-Powered Helicopter by archangel_one on Friday May 18, 2012 @03:36PM (#3993506)
Presumably the pilot must be pedalling pretty hard to get this thing in the air, so they're not going to be able to keep that up forever.
Re:Atlas: A Human-Powered Helicopter by smackfu on Friday May 18, 2012 @04:21PM (#3993705)
It may help to see a video: http://www.youtube.com/watch?v=q70tM5sDQhc

They are right on the edge of flight/no flight. The driver is pedalling flat out and it's not flying. Then it hovers for a few seconds, then it goes back to on the ground.

Re:Atlas: A Human-Powered Helicopter by carlhu on Friday May 18, 2012 @03:33PM (#3993485)
Insufficient sustainable power output.