Subject:
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Re: helicopter not done
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Newsgroups:
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lugnet.technic
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Date:
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Mon, 10 Feb 2003 15:30:05 GMT
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Viewed:
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647 times
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"Tobbe Arnesson" <StPnAtM@lotek.nu> wrote in message
news:HA3MFJ.406@lugnet.com...
> I seriously think you can't use LEGO parts to make a propeller. It needs • an
> airofoile shape, like an airplane wing. It needs to be thick towards one • edge
> and thinn down on both sides.
it is true but you know toys sometimes don't have real propellers
and work fine
>
> You can only get so efficient with just a plate.
>
> Is the <set:8855> propeller shaped correctly?
it seems to be profiled (shaped) but is it really calculated propeller???)
who knows :)
is someone educated enough :) to calculate
gearing which could be best in terms of RPM and power
some kind of table could be helpfull
pixel
>
> Best regards,
> /Tobbe
> http://www.lotek.nu
> (remove SPAM when e-mailing)
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Message has 1 Reply:
 | | Re: helicopter not done
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| (...) That I did not know (and quite franqly find hard to believe). (...) Yes, the RPM is also important for maximum efficiency... /Tobbe (22 years ago, 11-Feb-03, to lugnet.technic)
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Message is in Reply To:
| | Re: helicopter not done
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| I seriously think you can't use LEGO parts to make a propeller. It needs an airofoile shape, like an airplane wing. It needs to be thick towards one edge and thinn down on both sides. You can only get so efficient with just a plate. Is the (...) (22 years ago, 10-Feb-03, to lugnet.technic)
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