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-   -   2 blade to three blade question (https://www.rcuniverse.com/forum/beginners-85/10009810-2-blade-three-blade-question.html)

kzart 09-17-2010 08:59 PM

2 blade to three blade question
 


Iwas given a motor(w/gws gear)and esc from an uncles underpowered 3d foamy.Dont know exactly what it is but it works on a 30" p-40 thatI built. It has a two blade gws 9x7.5. Im looking for possibly more ground clearence and a better look. Would it still be a 9x7.5 3 blade or is there some way to figure out the math?</p>

radius1x1 09-17-2010 09:19 PM

RE: 2 blade to three blade question
 
Been usihn both 2 blade and 3 blade props on both ParkZone T-28 and Corsair with no appreciable performance issues. 3Blade Part # PKZ 1015

kzart 09-17-2010 09:28 PM

RE: 2 blade to three blade question
 
thank you.... is the 3 blade the same diamiter

da Rock 09-17-2010 09:47 PM

RE: 2 blade to three blade question
 
The PKZ 1015 is a 9"x7.5" three blade. That half inch shorter length is important.

Be careful what props you stick on any electric motor. Fuel engines simply don't turn up the revs when they're overloaded. But electric motors will simply run at higher amps if the battery will provide the juice. If the higher amps creates more heat than the motor can handle, it burns up. Depending on how overloaded it is, it might burn up right off the bat or might take awhile.

kzart 09-17-2010 10:06 PM

RE: 2 blade to three blade question
 


thanks for all the help, and if you would wish my pops luck at the scale nationals this weekend.  oh yeah thats why im here to many questions and he's a little nerve racked any way thanks</p>

daveopam 09-20-2010 04:21 PM

RE: 2 blade to three blade question
 
Rule of thumb on 2 to three blade. 1" shorter and 1" more pitch. This is just a general rule. Some trial and error may be involved. :-)

david

billd76 09-20-2010 05:14 PM

RE: 2 blade to three blade question
 
Da Rock. Love the avitar, the Three Stooges are my heros!!!


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