How Do I control the speed of a remote control dc motor from the transmitter?

I am making a remote control plane and I would like to control the speed of the motor from the transmitter with a variable resistor how would I do this?How Do I control the speed of a remote control dc motor from the transmitter?
you use an esc electoinc speed control


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DanHow Do I control the speed of a remote control dc motor from the transmitter?
If you do not wish to invest in an electronic speed control, you may use a wound resistor and a wiper arm (found inside a slot car controller). This will depend on the AMPs you draw. That is how we used to do it in R/C cars in the late 70's
you need to get an esc off of tower hobbies or a local hobbie shop.