RC Motor and ESC Wiring - Part 1

Learn about the basic components and wiring procedures for electric RC airplanes and helicopter powerplants. Easily connect your ESC and Brushless Motor to the Radio Receiver and your Flight Battery Pack!

Part 1 of 3

Copyright 2010, 2 Brothers Hobby, LLC., All Rights Reserved

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[philipriding]

as i done a range check first. when i got to the plane the rudder elevators ect ect and motor was working fine, im a bit scared to take the plane up again in case it happens again. do you think i have a dodgy esc?. thanks.

[2BrothersHobby]

@philipriding - Need more info than the motor RPM. The maximum wattage or amperage in the motor specs will indicate how many amps the ESC needs to be. Additionally, you could be running with the wrong prop, causing more draw than what the ESC is rated for. Sounds like you hit thermal limits on the ESC, it went into protection, then came back on after it cooled down a bit. Finally, most setups are only rated for a few seconds (8-10 MAX) full throttle runs, then back off a bit.

[thediamondz1]

Since my battery puts out 66amps do i have to get a esc with an amp rating higher than 66amps.

[2BrothersHobby]

@thediamondz1 - The ESC rating is based on the motors peak or maximum amperage draw, not the battery. The battery can only supply what the motor is able to draw, so the ESC never passes more current than the motor's maximum rating, unless you're running the wrong prop.

[FyJonas]

hello, great tutorial.

i have a question is it important to have like a 5a motor and a 5a speed controller?

i cant find anything on the internet

greetings Jonas

[2BrothersHobby]

Jonas, You factor the motor's peak wattage and convert to amps. Watts = Amps X Volts. You then choose an ESC that can handle the max amperage or slightly more to be safe. We have several tools on our website that helps with these calculations. Good Luck!

[bobt34]

Thank you Very well done. Brian

[ujayet]

Is it possible to connect the esc to a motor that have 2 leads instead if 3?

[killer8452]

for the items

[killer8452]

what website did you use



[jigilowman]

question i got novak micro gt esc that has black and red wired what can i do with the yellow one?

[TheDedados]

Super explanation!

[philipriding]

thanks for getting back to me. the you can see the motor i bought from ebay, the item nunmber is 250946319403. i will try a smaller prop. thanks.

[philipriding]

I was flying my rc plane with a 2070 rpm brushless motor and a 30amp esc, after 5 minutes of flight i landed it to see if all was ok. the motor was nice and cool but the esc was hot, even though the plane had a good draft of wind passing through the plane. i took off again and tried the plane on full throttle, when i got to around 200ft the motor cut off and i also lost all control of the plane. it crashed. but lucky enough all i broke was the prop, the range on the transmitter is all ok.