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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Tue, 11 Feb 2003 06:48:38 GMT
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Viewed:
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821 times
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In lugnet.technic, Paul Kleniewski writes:
>
> "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
That I did not know (and quite franqly find hard to believe).
> > 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
Yes, the RPM is also important for maximum efficiency...
/Tobbe
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Message is in Reply To:
 | | Re: helicopter not done
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| "Tobbe Arnesson" <StPnAtM@lotek.nu> wrote in message news:HA3MFJ.406@lugnet.com... (...) an (...) edge (...) it is true but you know toys sometimes don't have real propellers and work fine (...) it seems to be profiled (shaped) but is it really (...) (21 years ago, 10-Feb-03, to lugnet.technic)
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