The MOCs in these folders use Power Function elements from Bulldozer set 8275. The images of Power Functions elements from 8275, and MOCs that use them, have now been released with permission from TLG, since the Bulldozer has already appeared at toy fairs around the world. The elements in the bulldozer are the battery box, IR handset, IR receiver, large motor and medium motor. The joystick controls use the Power Functions handsets with a few extra parts from my collection. This configuration would be used for a remote controlled helicopter (2 joysticks with 2 auxiliary controls). It's just waiting for a LEGO helicopter that can fly! The idea was to keep the levers short, so that smaller hands could operate them easily. In the end, 5L axles on the middle handset give a lever length equal to the joysticks. The ball-joint pieces could not be turned over (ball downwards) because the ball would foul the mechanism. Mark Bellis March 2007