Good question. I saw a pretty nice looking plane on Bannana Hobby that has two Speed 370 motors and I was thinking of buying it and replacing them with outrunners. As far as I know, brushed motors can be run off the same ESC, but brushless require an ESC for each motor. I would guess that the control wires would be run to a "Y" connector to connect them to the same port on the receiver. The battery connectors would be joined in parallel so that the two motors see the same voltage. Any difference in rotation would need to be compensated by the rudder. At least that's my best guess. Anyone's comments with actual experience would be greatly appreciated (particularly from Glacier Girl).