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Old Jul 17, 2010, 10:00 AM
3D-Dabbler is offline
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Joined Oct 2009
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Originally Posted by geeby22 View Post
Moteur_calc is a javascript calc to define the electric propulsion for a plane.
You have just to enter : flying weight, wing area, flying type and cells number.
On line (no download needed), you have all propulsion elements.
Please go to my blog (sorry, only in french ) :
Modelisme by geeby22
and clic on : "Calcul d'une propulsion électrique"

Sorry for my poor english language !

Thanks Geeby! I just tried out the calculator and it seems to be giving me odd results. The recommended power setup is way Under Powered.

This was for a 70" 3D HobbyShop Slick. Here is what I entered. 3D flight, 4 kg, 61.3 sq. dm and 8S.

The results were 1350 W. That is way to low for 3D 1800 Watts to 2200 Watts is what I expected.

Battery capacity was fine but discharge rate was off. It recommended a minimum of 15C where I don't think I would fly with anything less than 20C on that setup.

Propeller was also off. It recommended 15.8 x 7.8. That will not move the plane. The smallest prop for 3D for a plane this size would be an 18x10.
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