For a hand-operated joystick, the handgrip length should be in the range between a minimum of 110 mm (4.3 in.) and a maximum of 180 mm (7 in.). The grip diameter should be a maximum of 50 mm (2 in.). To allow for hand movement, joystick clearances should be a minimum of 100 mm (4 in.) to the side and
50 mm (2 in.) to the rear. 5908