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Old 10-25-2012, 08:07 PM   #1
Ricardo Kuhn OP
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Human power Helicopter video, so freaking awesome

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Old 10-25-2012, 08:08 PM   #2
a1fa
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It only takes 205 RPM to get it in the air.
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Old 10-25-2012, 08:44 PM   #3
Ricardo Kuhn OP
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Quote:
Originally Posted by a1fa View Post
It only takes 205 RPM to get it in the air.
Yeah, looks like the whole thing lifts up on the first revolution of the rotors..
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Old 10-26-2012, 02:41 PM   #4
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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, 04:24 PM   #5
42
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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   #6
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That was fantastic. Reminded me of the Gossamer.

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Old 10-26-2012, 06:59 PM   #7
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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 10-26-2012, 06:19 AM   #8
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what's the point?

uncontrolable

how you navigate it? just goes up and down?
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Old 10-26-2012, 07:39 AM   #9
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what's the point?

uncontrolable

how you navigate it? just goes up and down?
I am sure they told the Wright brothers the same thing.
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Old 10-26-2012, 07:44 AM   #10
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Originally Posted by gorgopodaros View Post
what's the point?

uncontrolable

how you navigate it? just goes up and down?
You're joking right?

The point is to see if it can be done, that's it.

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Old 10-26-2012, 08:22 AM   #11
Ricardo Kuhn OP
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Originally Posted by gorgopodaros View Post
what's the point?

uncontrolable

how you navigate it? just goes up and down?
200 pounds lifted 8.7feet high by a one horsepower engine, if that is not a accomplishment I don't know what is..
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Old 10-26-2012, 08:51 AM   #12
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Originally Posted by Ricardo Kuhn View Post
200 pounds lifted 8.7feet high by a one horsepower engine, if that is not a accomplishment I don't know what is..
Typical human output is actually less than half a horsepower. Elite athletes can output ~400 W and higher for extended periods, but most, let's say, average athletes can only do 300-325 W.

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Old 10-30-2012, 07:00 PM   #13
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Typical human output is actually less than half a horsepower. Elite athletes can output ~400 W and higher for extended periods, but most, let's say, average athletes can only do 300-325 W.

W.A.
I think the highest my middle school students hit was .4 horsepower, as measured by my bike-dyno. And that was giving it everything they had, measuring just the peak. No way could they hold that for any amount of time.





Very cool copter. Wonder if the lack of control is due to the added weight?
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Old 10-30-2012, 07:10 PM   #14
Ricardo Kuhn OP
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Originally Posted by dorkpunch View Post
I think the highest my middle school students hit was .4 horsepower, as measured by my bike-dyno. And that was giving it everything they had, measuring just the peak. No way could they hold that for any amount of time.



Good for you, I will love to have a teacher like your self
Quote:
Very cool copter. Wonder if the lack of control is due to the
added weight
?
"Added weight" where..??
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Old 10-31-2012, 05:24 AM   #15
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Originally Posted by dorkpunch View Post
I think the highest my middle school students hit was .4 horsepower, as measured by my bike-dyno. And that was giving it everything they had, measuring just the peak. No way could they hold that for any amount of time.





Very cool copter. Wonder if the lack of control is due to the added weight?
I do think they broke down the task, and decided to address the biggest question w/o any complications. The legacy of the prize is testament that it's a big enough ambition to just prove 1 aspect of the entire question; can a human levitate 10' off the ground by his/her own power if that were his/her sole ambition? If we can't prove that, the other details are irrelevant.
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