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Old Jan 24, 2002, 06:06 PM
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Flying Taco's Avatar
NRH, TX
Joined Jan 2002
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I want one of these to power my plane

http://www.wired.com/news/technology...2,48400,00.htm
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Old Jan 24, 2002, 06:08 PM
LJH
Moths do not fly inverted
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Greenwich CT.
Joined Sep 2000
4,191 Posts
Wow,
Just think.....20 of those things weigh an ounce and you could get over 500watts. Pretty nice power to weight ratio .

Cheers,
Jim
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Old Jan 24, 2002, 06:35 PM
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ny
Joined Dec 2000
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Not sure I would like to be around something turning 2.4 million rpm if it came apart when running.No matter how small it is,if this has fuel would it be a gasser or elec
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Old Jan 25, 2002, 04:07 PM
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Minneapolis, MN
Joined Nov 2001
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Slashdot had a story about this a while back.

They mention in the story that the biggest problem with these little engines is heat. At Slashdot someone said that this engine was only 10% efficient. So producing 20 watts of power also generates about 200 watts of waste, most of which is heat. That is a lot of heat to deal with.

Another problem is that this engine runs on Hydrogen, and there aren't a lot of places to go fill up your hydrogen tank.

I have to agree though that the first time I saw this article the first thing I thought of was powering an e-plane, but I think I'm back to hoping they can improve the output of fuel cells.
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Old Jan 25, 2002, 05:01 PM
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San Francisco, CA, USA
Joined Jun 2001
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see this one as well:
http://wired.com/news/technology/0,1282,49717,00.html

it says it can power a 15W notebook. that's not a lot of power output, but fuel cells will probably start out the same way NiMH and Li-Ion did - low output and high capacity, but improving over time.
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Old Jan 26, 2002, 01:04 PM
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Chesapeake, VA
Joined Sep 2001
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It shouldn't be that hard to build a home hydrogen kit- AC/DC adaptor, couple flaks full of tap-water & some tubing, and you'll be pumpin' out the H2 in no time! The expensive bit would be the compressor... Would have to be brushless, and absolutely leak-free. I'd imagine they would start selling H2 in those little CO2 bottles if these become popular, anyhow.
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