how is brushless measured?

i see all these setups and im wondering how is brushless power measured? is it by amps? what factors should be looked at?

[squeeforever]

Well, KV is one of your most important things to look at when you look for a a motor. KV is simply the x number of rpms per volt. So if your running 6 cells, thats 6x1.2=7.2. 7.2xkv=how many rpms the motors gonna spin. You want to keep it around 35 to 40k so it stays fairly cool and most efficient. There are also other things to look at like the size of it obviously, but you also have to get a ESC to match the amps that the motor can pull. Those were Sensored systems, I would recommend sensorless over sensored anyday. The Novak sensored however are measured by turns and Novak doesn't list the kv anymore.

[Serum]

He is asking about power squee..

power can be measured on different ways.

one way is to measure the power thsat is going in the system, and what stays in the system. (electrical losses) the result is pure output power

To measure power you need the V and the I. (power = voltage x current )

[SpEEdyBL]

The main thing that determines the power of a motor for practical purposes is how much power it can handle w/o overheating. Bigger motors tend to heat up less because they have more room to spread the heat and they have lower resistance. But also, lower kv motors heat up less because it's more efficient to use higher voltage and less amps.

[mmdooley]

Please stay away from the novak system's. For what you will pay for a novak you can get a wanderer and a bk esc that will run circles around the novak's. I am not saying that the novak systems are bad, They work great for certain applications but if you are trying to get all the power you can for your $$ don't go novak.