I gave you an answer in your other motors thread (!) with two examples of motors I'd use, their specification and where to get them from. They both have a max. rating of 80amp. so yes 120amp ESC would fit the bill as it's good to have some head room.

If you find something better let us know.

Hi all, if you wonder why domestic / AC mains equipment is also quoted as KVA, there is a reason. Many will know about how an electric motor works with a coil of wire moving in a magnetic field causes the build up of a magnetic field in the coil. Everything takes time to happen so it lags a bit.

Some of you will also know about capacitors charging up and of course discharging and they will be slow to discharge. So in one case the voltage is slow to build up in the coil of wire and the current is slow to discharge from a capacitor.

All circuits have a capacitive and an inductive (Inductance is the build up of the magnetic field in the coil of wire and also a measurement of an induced magnetic field) effect.
DC circuits are mainly resistive.

If you look at many of the 'works' of domestic machines (white goods) they come with a fair number of components. So the AC waveform has to be thought of as voltage going up and down at 50 cycles per sec (or Hertz), as well as current and they are more often than not out of phase.

So maximum current (A) multiplied by maximum volts (V) is given as VA the K just multiplies it up by a thousand.

Hope it helps although a bit off piste.
Roy

Hi KV and amps are 2 different things, KV is short for rpm per volt, so a 600 KV motor is 600 revs per volt from the battery. So multiply the volts from the battery times the quoted ?KV. Usually used with brushless motors.

Amps are the rate at which the little electrons are speeding through the system.

ESC's are often quoted in amps but note the maximum voltage that they are meant for. Volts times amps equals Watts.

Watts is a measurement of power.
A domestic fire may be 2KW (2000 watts). It is all much the same as a model electric motor which may be quoted at 50 watts max. power. If you multiply amps times volts you get an answer in Watts. That is the simple way to look at it.

You cannot 'make' a motor run at 50 watts. It all depends on the load you put on it. Probably the diameter and pitch of a propellor.

There is another set of similar letters KVA this is usually used as a substitute for Watts but only for domestic AC mains supply and other AC circuits.
Hope this helps,
Roy

Are we going twin motors?
Brushless perhaps or traditional?