ESC to match motor

[wedgetailaus]

Hi all,

I recently recieved this motor from HK - https://hobbyking.com/en_us/turnigy-d2836-8-1100kv-brushless-outrunner-motor.html
I also bought this ESC - https://hobbyking.com/en_us/turnigy-plush-30amp-speed-controller.html

I am intending it to be used as an equivalent to a C-pack motor. I'll use 9x6 or 10x4.7 props (not sure which is a better choice).

I had assumed the 30amp ESC would be ample for this motor, but the instructions that came with it suggest a 40amp ESC. What are your thoughts? is 30 sufficient or would 40 be safe? According to its HK page its max amp draw is only 18.

Electronics, voltage, amps, watts are still something I'm working on understanding.

Cheers

 

[ElectriSean]

You should be okay with either prop on 2-3S, but I would land early in the maiden to check the motor for excessive heat just in case. If you stay withing the recommended prop sizes you should have no problem.

 

[Hai-Lee]

You might find that the Manufacturer is giving the max current figure based upon the maximum battery voltage and making an allowance for safety.

If you are using a 3S battery then check to see if the manufacturer is talking about a 4S battery setup. As you increase the number of cells the current and heat increase accordingly and NOT at a linear progression.

After checking the details of the manufacturers recommendation you could try flying the 30A ESC using the smaller prop and check for heating of the ESC and the Motor.

 

[wedgetailaus]

Great thank you for the help, guys. I'll try a small prop to begin with and see how it handles it.