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Nov 18, 2007, 07:43 AM
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Question

AXI 2212/26 prop 10x4.7, 11x3.8, or 11x4.7?


Hi All,

I know question about AXI 2212/26 prop has been asked before, however I couldn't find definite answer on these props comparison.

My plan is to use it on:
Hacker ZoomBi 3D 480g / 17oz
Battery 3 cell 1300 20C, burst 25c (So I think this will handle up to 25A easily)
25Amp ESC

I'm thinking of using these props:
APC 10x4.7
APC 11x3.8
APC 11x4.7
APC 12x3.8 (Not sure if 26 can handle this)

Do you know the thrust and Amps for those props?

AXI said that 2212/26 max amp is 12A, but I heard that AXI always under-rated its max amp. Realistically, how many amp do you think this motor can handle?

Thanks in advance
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Nov 18, 2007, 07:51 AM
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vintage1's Avatar
Quote:
Realistically, how many amp do you think this motor can handle?
Realistically, how many minutes do you want it to last?

If you want more power, what's wrong with a BIGGER MOTOR?
Nov 18, 2007, 11:29 AM
Registered User
I have two 2212's and always use a 9.6 or 10.47 SF. I think I get about 150 input watts and the motor gets fairly warm but not hot.

They are in sport planes not 3d's.. From my experience at least, I think you can run them at 12 to 15 amps all day. Especially if there is good cooling.

I don't think they will last long at higher amps than that.

I have never tried a 11.38 on them, that seems a little large for the 2212 26.

CS
Nov 18, 2007, 11:41 AM
Go Cocks!
tdab's Avatar
Try a GWS 10x6 HD. It will be fine on that motor and easier on your lipo's.

Tom
Nov 18, 2007, 11:56 AM
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Dr Kiwi's Avatar
An 11x3.8 on 3s draws >15A and the motor gets hot - as Tom suggests 10x6 GWS HD is perfect -:
10.9v, 11.70A, 127W, 7590rpm, 43.1mph, 770g, 27.11oz, 6.06g/W

If you must have a bigger prop, get a bigger, lower Kv motor - if you need 150-200W, get a 150-200W motor.

I tried a 12x3.8 on 2s, and the motor just doesn't have the torque to swing a prop that big. It drew 13.6A/101W but struggled with it and got very hot, very fast.
Nov 18, 2007, 02:28 PM
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jooNorway's Avatar
On APC: APC-SF 9x3,8 is the most "efficient" compared to thrust. APC-SF 10x3,8 gives max thrust, still within a range the motor could handle.
Nov 20, 2007, 10:51 PM
Registered User
Thread OP
Ok, thanks for the info guys
Nov 20, 2007, 10:59 PM
And You're Not
I like the 10X4.7 SF on mine* for 3D foamy action

*it's actually borrowed from Lance, but he knows he ain't never getting it back
Nov 21, 2007, 08:18 PM
Registered User
The AXI 2217/16 is build for that sized prop and will absorb 175 Watts. The AXI 2212/26 accepts 100 watts with an 9 inch diameter prop without any heat build up.

Alan
Nov 21, 2007, 09:41 PM
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Howemd's Avatar
I recently started using 10 x 5 E props on my 2212/26 motors and really like the performance. At the folks house for thanksgiving so I am not able to get you numbers from Watt Meter.
Nov 22, 2007, 09:50 PM
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ededge2002's Avatar
if anyone wants a little more than a 2212-26 i bought a 2217-20 and its a real performer! 11x4.7sf (yea i know i know) 6700rpm 16.5amps on 1320's. but i do have it in a 16oz all up plane lol.

ededge2002


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