TowerPro borstelloze Outrunner w / Mount 2908-10

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Tower BM2908

Nov 14, 2007

This is a great motor for powering large models (up to 5lbs) on a budget. Comparable performance to the Eflite park 480 for size and power. I pull 325 Watts with a 10X5 prop and 3S lipo. It will 3D a brick! I use two in a 3lb P-38 and can hover it at just above half throttle.



The downside is that it uses a lot of power and the KV varies from the rated 1100 (I had to use advanced timing one one motor and slow timing on the other to get my P-38 to fly straight). It is best to use a good, stiff prop (Gas props are perfect) as flimsy ones will not take the stress. I recommend using a 9X6 (280 Watts), 10X5 (325 Watts), 11X5.5 (360 Watts) or somewhere in that range. I wouldn't recommend anything more than a 13X5 or the motor may overheat.



(My actual rating would be 4.5 stars, but that's not an option)

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TowerPro Brushless Outrunner -

Nov 14, 2007

Mounted on a formosa II with a 10*6 prop - ESC 30A - 3S1P 2100 (all from UH)

Power analyser : 100% throttle less than 25A.

First fly (+-3 min cool + 12 min aerobatics) Everything OK

30 min later - 2nd fly :

After 5 min (not allways 100% throttle) big noice from motor.

Immediate landing.

Motor very hot and... burned.

Will it be replaced for free?

Send back, wait...and see.

Piloo

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ordering one

Nov 14, 2007

this looks great. i cant wait to get one

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2908

Nov 14, 2007

i just flew my 6lb 50 tiger moth on this motor i had just thrown it in will waiting on a 3520 but i am amazed agian by the tp motors i used a 4000 11.1 15 c on a 10 5 apce flight time flying scale 20 minutes wot at 35 amps not enough power to hover but wow for a small motor this is wonderful i also have one in my combat corsair 42in and it sceams with a 9 8 apce at a little over 3lb it has great verticle i am ordering more i only need the 2915 to complete the whole set of tp motors my axis rimfires and eflites are now stored under stupid thing i wasted my money on if you want to buy them ill sell them cheap naaa i cant do that to someone

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TP 2908-10

Nov 14, 2007

I fitted this motor to an e-flight Mini Ultra Stick using 11 x 5.5 APC-E and Hobby City 2100 3S Lipo. Performance is rapid vertical climb that just doesn't stop. In this configuration it peaks a 402W and 40A, with sustained 388W at full throttle, pulling 38A.

Very smooth running and quiet motor, if just a little heavy on current draw. Nonetheless, a cracking motor for a cracking price.

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avis moteur

Nov 14, 2007

trs bon moteur puissant et fiable, mont sur un tigercat aeronaut avec une 10x6 a arrache!!!!!bref que du bonheur un prix plus que raisonnable

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Great value

Nov 14, 2007

Although the motor uses a lot of power, it cost almost 1/3 of a similar popular motor. It delivers similar performance of a Park 480. I used a 2200 mAh lipo and was pleased with the value, jetting my Sea Gull 300 Extra straight up with authority. If you are on a budget, it is a great choice.

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tp 2908-10

Nov 14, 2007

the engine is quite powerful, although i expected even more- with a 11*5 prop my fliton extra260 couldn't go vertical.

but the main issue is huge current waste- my 1800mAh 3s1p battery lasted only 3 minutes at 2/3 throttle- a poor comparison with over 10 minutes on a slightly less powerful 450 like motor.

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TP 2908-10

Nov 14, 2007

I purchase a lot from UH and this motor is like everything else I order! Fantastic, this motor was installed into my new Preditor and it flew like a dream. Now looking at the 50cc gas motor for my next order