Clockwise from top-left:
top-left: two E-Tec modules that control the position lights (white, on top of the yaw rudder; red+green, on left+right wings). top-right: the gear that opens the front by lifting up the cockpit. bottom-right: the nose landing gear in retracted position where it actuates two switches (of which only the upper, gray one is visible). mid-left: the main landing gear.