I've used Sail Winch servos on my RC warships. You can also use geared head and stepper motors, with some pretty simple wiring of a servo and 2 switches. (Same setup I've used for a simple on/off throttle)
Attachment:
speed control.gif [ 3.38 KiB | Viewed 1911 times ]
I've used Sail Winch servos on my RC warships. You can also use geared head and stepper motors, with some pretty simple wiring of a servo and 2 switches. (Same setup I've used for a simple on/off throttle)
[attachment=0]speed control.gif[/attachment]