The locking tailwheel mechanism in the Falke is not the same as that found in most aircraft with such a facility. It is more akin to the normal type of tailwheel that is moved by rudder action through a spring connection with a breakout facility to permit tight turns/pivoting on the mainwheels. With the lock on, the tailwheel steers with the rudder; unlocked it pivots freely thus permitting a tight radius turn. What you have to remember is to lock the tailwheel before take off and also to taxi straight for a few yards so the the locking mechanism re-engages. Failure to do the latter can result in an interesting take off run particularly in a crosswind.