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Old November 17th 09, 01:07 AM posted to rec.aviation.homebuilt
Anyolmouse
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Default scaling formulae


"jan olieslagers" wrote in message
...
I seem to remember seeing formulae for scaling planes, but cannot find
them back. The one I do remember is "power required rises to the third
power of airspeed" - so to double the airspeed the engine power must

go
times eight.
But there must be the same about weights and dimensions - if I double
the length and wingspan, empty weight goes up by so many percent and

max
gross up by so many. Any pointers, please?
NB of course I am aware that such factors can only be estimates, there
being very many other parameters.
TIA,


Don't know if this will help you. It is mainly about scaling down
wings--

http://www.nurflugel.com/Nurflugel/n...eory_basic.htm

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Anyolmouse