You want to make sure all 3 items match up to the amount of power that is being drawn. So nothing burns or fails. Now what affects the amount of power being drawn?
i. motor (size and KV);
ii. propeller size (diameter and pitch); and
iii. input voltage (how many cells).
You want an ESC that of course can handle the amount of amps and voltage. Your best friend will be a WATT METER and then to know what prop matches to which motor and how many cells you can use MotorCalc or read from the forums. Get info from those who have done it (and burnt it).
Smaller motors have a higher KV rating than the bigger ones
High KV motor can spin a small prop at very high speed or spin a bigger prop using less cells
Low KV motor is good to use when you want to fly with a big prop or want to use more cells with a smaller prop
I have the DualSky Breeze ES, the 2826-10 motor is 1,400KV and turns a 9x3.8 on a 3S 800 mAh pack. For a parkjet you want to turn something in the 5x5 to 7x6 range, depending on what type of plane and what sort of performance. So if you were to use the same motor size you want to take the KV up to perhaps about 1,700 for maybe a 8x6 or even 2,300 for perhaps a 5x5 prop.
Any headaches so far?
