Translations:Manuals:BXFbl:Setupmenu E/2/en

Next we have to setup the rudder gyro. For this we set the limits of the tail pitch control and the control directions, so the gyro will not move the servo further than allowed and in correct direction.

In first line the rudder limits are necessary to prevent the gyro from moving the servo over the mechanical limits and damaging the servo. But when adjusting the limits please note that the optimum throw is not necessarily determined by the maximum possible control travel of the tail pitch slider. When the tail mechanics allow a very high range of pitch, it may be advisable to adjust the limits based on the maximum allowed angle of attack of the tail rotor blades. Otherwise high tail pitch throw can cause aerodynamic stall of the blades. Such stalls can cause very bad stopping behavior like overshooting of the tail when stopping from rotation and can also cause bad tail response to rudder stick input when performing directional changes. Keep this in mind when adjusting the tail rotor endpoints! Check the helicopter‘s manual to find out how much tail pitch is useful and where to set end points.