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Old 10-26-2012, 11:42 AM   #16
Ricardo Kuhn OP
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Originally Posted by Sniper X View Post
Right up until "Mr. Never gets tired" biffed it into the wall in the Gym and broke the fucking thing.
Well they just need a bigger hangar.

I think he never gets tired because they run out of rope for the rotors so he does not have a chance to reach that point..
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Old 10-26-2012, 01:54 PM   #17
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yeah take it outside.... let the wind get under it....

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Old 10-26-2012, 02:37 PM   #18
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Old 10-26-2012, 02:41 PM   #19
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It only takes 205 RPM to get it in the air.
Really? I haven't seen it.

Maybe it is.

It is still way cool. Thanks Ricardo.
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Old 10-26-2012, 03:50 PM   #20
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It just feels like an elaborate internet troll, like liquid mountaineering.
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Old 10-26-2012, 04:24 PM   #21
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It only takes 205 RPM to get it in the air.
I think it's a different one.

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Old 10-26-2012, 06:46 PM   #22
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That was fantastic. Reminded me of the Gossamer.

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Old 10-26-2012, 06:59 PM   #23
Ricardo Kuhn OP
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That was fantastic. Reminded me of the Gossamer.
Oh man that was so long ago, really awesome accomplishment..

Many years ago I when to visit Paul MacCready's shop but it was all "Militarize" so no way to just say hi..
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Old 10-27-2012, 08:01 AM   #24
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Amazing. Da Vinci would be proud. I was wondering if the reason for not getting to 10 feet. Could it be ground effect. Once you get to a certain height you loose the help of the ground for the downward air movement or thrust? No engineer here but have flown rc gliders and when you get close to landing the plane it floats until the speed drops.
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Old 10-27-2012, 01:35 PM   #25
Ricardo Kuhn OP
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Amazing. Da Vinci would be proud. I was wondering if the reason for not getting to 10 feet. Could it be ground effect. Once you get to a certain height you loose the help of the ground for the downward air movement or thrust? No engineer here but have flown rc gliders and when you get close to landing the plane it floats until the speed drops.
John
I bet you are right, I was thinking the same thing..
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Old 10-28-2012, 09:46 AM   #26
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Brilliant! I hope they get it.
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Old 10-28-2012, 10:53 AM   #27
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very very cool. And a pretty awesome display of ultralight structures. It appeared that they could benefit from some cycling theory about cadence, and gearing. I think they're soooo close. I would imagine, though every ounce is precious, and working in a directional controller that works--while you are peddling your ass off--is going to be a hell of an ambition.
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Old 10-28-2012, 12:18 PM   #28
Ricardo Kuhn OP
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very very cool. And a pretty awesome display of ultralight structures.
Yeah the structure is awesome, will be great to see how they build it "Crazy glue" instead of epoxi...??
Quote:

It appeared that they could benefit from some cycling theory about cadence, and gearing. I think they're soooo close. I would imagine, though every ounce is precious.
yes 10% reduction in RPM will get them more stable and less bouncy, then again maybe they are approach it as a "Anaerobic" exercise, who knows I'm sure they have very smart people around.
Quote:

and working in a directional controller that works--while you are peddling your ass off--is going to be a hell of an ambition.
That is a the next big challenge, even with a "Hand to control it" is complicated, never mind the means to accomplish it, very interesting project none the less (I'm been following the helicopter challenge since I was in Design school in the 80')
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Old 10-28-2012, 12:21 PM   #29
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IIRC Neal Saiki did this first (human powered helicopter) in 1989. Just didn't do 10ft and that amount of time.

http://www.humanpoweredhelicopters.o...inci/index.htm
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Old 10-28-2012, 08:22 PM   #30
Ricardo Kuhn OP
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IIRC Neal Saiki did this first (human powered helicopter) in 1989. Just didn't do 10ft and that amount of time.

http://www.humanpoweredhelicopters.o...inci/index.htm
Thanks for the link, I still remember the video of the small propellers trying to spin the "big wing", awesome start for a really crazy challenge..
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