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[Roadrunner]

My friend Has fitted MMM's T12 motor into his current project ( it was given to him)  and has purchased a Electronize 15A ESC For it, but we are both unsure as to the motors draw ratings and if a 15A esc will be enough to power the beast.

I've Never used a T12 so i was unable to say 15A was enough, but i think it may require 25A.

Can anyone tell us which ESC is really needed for this motor as fire mid sail is not the result he's looking for!

Thanks Guys.

[john s 2]

Why not contact mmm. They are certainly the best people to advise you. Are your motors 12v or 24v type. I have a pair of 12v
ones in my Solent life boat. Excellent motors Running via an Action p94. Which is two 20 amp escs and a mixer all in one. It gives
good control with adjustable set up. Mine is configured so boat spins in own length. One motor in reverse the other foreward. John.

[Roadrunner]

T12 are 12v, we know that for sure, Only reason we have not phoned MMM is that im sure i will get the right answer from the forum.

The boat being powered is Mountfleets 'Danny Boy' which now is running a 70mm 3 blade brass prop if that helps with the right answer.

[john s 2]

You could use the 15 amp esc to see if its ok. As long as you fuse the output for no more than 15amp. the fuse will fail if esc is
overloaded. Best to make sure you have a recovery boat to hand. As sods law says the fuse will fail in the middle of the lake. You
can of course use your test tank (Bath) to leave running for a hour or so. John.
 

[Roadrunner]

Thanks John, think were gonna try that method first see what happens.
I'm surprised though, your the only one who responded to my question where's everyone else!

[nick_75au]

They are the little scooter motors, I think they run at 2500 RPM, a bit of extrapolation from a set-up of mine i reckon they would draw about 10 amps as a direct drive application, the only way to tell for sure is hook up an amp meter in series with the motor in the boat sans speed controller and try.

Nick

[787Eng]

I suppose the answer to the question is it has a lot to do with the size of your props.

On my T12 setups with 75mm 4blade Propshop props the average current draw is approx 2A with spikes up to 10A. I used a on-board datalogger to get this data. I also use Electronize 15A ESC's and have not had any problems with the speed controllers or motors...

Mark

[Roadrunner]

Thanks boyo's

gonna stick with the 15A esc and fuse it do some testing.
 

[Aeronut4]

Not a wise idea to use a fuse as a means of determining current draw - different fuses have different blow characteristics and you can be sure that a 15 Amp fuse will blow at around 30 Amps.  Better to borrow either a data logger (best) or some sort of meter to measure current draw.