3.2.3-14 Hand-Operated Joysticks Dimensions and Clearance

The handgrip length should be between 4.25 to 7 inches (110 to 180 mm). The grip diameter should not exceed 2 inches (50 mm). Clearances of 4 inches (100 mm) to the side and 2 inches (50 mm) to the rear should be provided to allow for hand movement.