|Dec 16, 2011, 10:09 AM|
Which 3 or 4 Blade Prop on this Motor??
I would like to use this motor: TURNIGY AerodriveXp SK 3548-970 / 850W
But i need to use a big prop like the recommended 14x7. As in fact i dont have the space for it (Pusher Plane) so i would need a 3 Blade or 4 blade equivalent.
Which size do i have to take? (i didnt find something to calculate that).
|Dec 16, 2011, 10:48 AM|
Joined Nov 2003
Start from recommended 2 blade, use the same pitch then:
For 3 blade multiply diameter by 0.9
For 4 blade multiply by 0.85
So 14x7 equivalent 3-blade = 12.6x7 or 4-blade 11.9x7. So go for as close as you can get to those numbers
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