11. The tricycle landing gear version features a fully castering nosewheel and differential braking for steering. 12. Steering on the ground is by rudder pedal-controlled differential braking and a steerable nosewheel. 13. The wheels had differential brakes for steering, aided by a small, elastically mounted castoring tailwheel. 14. It is possible to use differential braking when taxiing and this allows very tight turns to be made. 15. Differential braking systems are essentially an epicyclic transmission with a single fixed gear ratio transmitted through idler pinions.16. The XDS electronic differential brake also used in the Golf GTI will be available as standard and optional equipment. 17. Differential braking could be found on many smaller tanks, especially in the pre-World War II era.18. The 400 nosewheel is not directly steerable; directional control while taxiing is accomplished using differential braking on the mainwheels. 19. The nosewheel is steerable through eight degrees either side of neutral and can castor under differential braking up to 30 degrees. 20. Steering is by main wheel differential braking operated by using one's toes to push the tops of the rudder pedals.
