Fred,
It is all electric, the controller(Clancy's) is in the handle, on board is just the esc, battery and motor. Other carrier fliers use the standard 3 line BC to drive a variable resister on board, but I use the same setup for all my electric planes and this is easier in my view. Line drag of the nylon coated lines is a problem, so I make my own lines, simply coat them with water based polyurethane.
John