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Author Topic: Advice on this motor please  (Read 1071 times)

woodley miniman

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Advice on this motor please
« on: July 28, 2013, 06:41:06 PM »

Hi all, can you please tell me if this motor will be ok for my robbe lightning 46???? Also what size speed controller would you recommend.
Cheers all.


http://www.ebay.co.uk/itm/360702895946?ssPageName=STRK:MEWAX:IT&_trksid=p3984.m1423.l2649
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woodley miniman

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pompebled

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Re: Advice on this motor please
« Reply #2 on: August 30, 2013, 05:29:52 PM »

Hi Woodley,

A 120A ESC is extreme overkill for that small motor.

Something like this will work too:
http://www.ebay.co.uk/itm/BRUSHLESS-WATERCOOLED-ESC-60AMP-rc-boat-marine-speed-controller-60a-/390648910818?pt=UK_ToysGames_RadioControlled_JN&hash=item5af47d53e2

It's a rather poor ebay site, regarding the (lack of) data with the products listed...

Compared to the HK I find the price a bit steep though...
As it's watercooled, you may even get away with this one:
http://www.hobbyking.com/hobbyking/store/__19833__40A_Water_Cooled_Brushless_Boat_ESC_w_3A_BEC.html

The motor you linked to has gobs of torque, compared to the brushed motor that powered the Lightning 46 in stock form, so please start with a small prop (28-30 mm) untill you know what the boat can take.

On 3S you'll be right in the sweet spot with 30.000 rpm under load.

Regards, Jan.
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