Link 1 with wheel a turns about fixed axis A of the aircraft frame member. Connecting rod 4 is connected by turning pair E to link 1 and its end d slides along fixed guide b. Link 4 is actuated by piston rod 2 of cylinder 3 and is connected by turning pair B to the rod. Cylinder 3 turns about fixed axis Cof the aircraft frame. When piston rod 2 moves into cylinder 3, link 1 is turned clockwise, and the landing gear is retracted as shown by the dash lines.
$1415$LG,AL$