Displacement joysticks are preferred over force joysticks when positioning accuracy is more critical than positioning speed.
Additional Information: Displacement joysticks that are used for rate control should be spring-loaded for return to center when the hand is removed. Displacement joysticks usually require less force than force joysticks and are less fatiguing for long operating periods. Hand-operated displacement joysticks may be used as mounting platforms for secondary controls, such as thumb and finger-operated switches.
Operation of secondary controls is less error prone with displacement (isotonic) handgrips than with force (isometric) handgrips. 5908