Subject:
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Re: Drat Soarer (2nd lego glider)
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Newsgroups:
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lugnet.technic
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Date:
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Sun, 3 Aug 2003 15:57:48 GMT
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Viewed:
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3263 times
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In lugnet.technic, Neb Okla wrote:
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> "Daron" <ratasaurs@attbi.com> wrote in message news:HIxCpt.LuC@lugnet.com...
> > My second glider, Drat Soarer, is now up:
> >
> > And does any one know of a way to build a good prop for an airplane? I
> > thought
>
> This is the best prop I've seen:
> http://www.peeron.com/cgi-bin/invcgis/inv/sets/5113-1?withpics=yes
This looks like a great prop but then I saw this thread...
http://news.lugnet.com/technic/?n=9169
>
> This one might be good too:
> http://www.peeron.com/inv/parts/30332
>
> Or this:
> http://www.peeron.com/inv/parts/2952
I doubt if these 2 props would do anything.
>
> > that perhaps some one has built one for a model of an airplane. Once I figure
> > this out then I think I can build a powered one, the prop design is the main
> > thing holding me back.
>
> Maybe you should try some kind of catapult system like the Wright brothers
> used?
It was Samuel Pierpont Langley who used a catapult. His "Aerodromes" as he
called them were launched from a catapult from the top of a house boat on the
Potomac River. I think he spent some time IN the potomac, too.
The Wright brothers did not use a catapult. Their plane took off completely
under its own power resting on a trolley which ran down a mono track. The
trolley was not powered. It landed on skids which part of the flyer.
>
> As for the motor - I'm not sure what you could use. I've connected the Set
> #5113 Airscrew to a motor before and wasn't impressed with the thrust
> generated. You'd need a lot more RPM to overcome the weight of the motor.
>
> The 3 Blade 9 Diameter motor is fairly light though, and could possibly be
> powered by a rubber band.
>
> You might also consider mounting a CO2 cartridge to the underside of your
> gliders nose. Hobby shops, bicycle shops, and sporting goods stores should
> have them in various sizes/weights.
Ok, that might work, but WOW. I think if you use a CO2 cartridge you'll need to
sweep the wings or they might snap off.
Regards,
Paul
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Message has 1 Reply:
 | | Re: Drat Soarer (2nd lego glider)
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| "Paul Krieg" <pdkrieg@epix.net> wrote in message news:HJ1wCC.12M5@lugnet.com... (...) brothers (...) he (...) the (...) completely (...) They did use a catapult: "The claim is based on disqualifying the flights made by the Wrights because "The (...) (23 years ago, 3-Aug-03, to lugnet.technic)
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Message is in Reply To:
| | Re: Drat Soarer (2nd lego glider)
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| "Daron" <ratasaurs@attbi.com> wrote in message news:HIxCpt.LuC@lugnet.com... (...) This is the best prop I've seen: (URL) one might be good too: (URL) this: (URL) that perhaps some one has built one for a model of an airplane. Once I figure (...) (...) (23 years ago, 1-Aug-03, to lugnet.technic)
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