The remote control system is actually something that I made that could be used with a lot of different cannons. I made it out of the electronic parts from a remote controlled airplane. I disconnected the motors and soldered a relay in place of them. The other part of the relay is then connected to the solenoid valve circuit. Then I changed around the controller by soldering a momentary switch in place of the joystick (one switch for the forward/backward stick, and one switch for the left/right stick, which gives me two separate channels). I added a molex connector to the receiver housing to make it easy to connect the receiver to different launchers
This system works incredibly well. I can have it connected to two cannons at once and fire them individually (from up to 500 feet away
The rest of the launcher is very simple. It uses a QEV with a solenoid valve to pilot it. I normally load five to 10 bbs into each barrel to increase the coverage area of the launcher.
This launcher was designed to be skirmish-able, so the pressure is limited to 100 PSI when it is used in a battle to prevent injury.
Air chamber: 1 1/4" x 6" steel pipe
Main valve: 3/4" Quick exhaust valve
Pilot valve: Small solenoid valve
Barrels: 12 short lengths of 5/16" brake line
Operating pressure: 25-200 PSI.
Muzzle velocity: up to 450 fps (per barrel)
This is the remote control system

Here is the launcher

Here is a close up shot of the barrels

This is the launcher as well as the remote control











