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Old 01-26-2014 | 09:16 AM
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SrTelemaster150
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Originally Posted by voodoodb
Holding someone can help here. I have a fuji that is turning a zinger 18x8 at 7300 rpm. I have a ZDZ 40 that turns a zinger 20x10 at 6300 rpm. Is it possible to say which setup would fly the same plane the fastest? I assume the ZDZ setup would give more vertical?
You can use this
http://personal.osi.hu/fuzesisz/strc_eng/index.htm

to get a relative idea of speed/thrust.

The 20 X 10 @ 7300 RPM wins both for speed & thrust. (vertical)

It also takes nearly 2X the HP.
Last edited by SrTelemaster150; 01-26-2014 at 09:34 AM.
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