Translations:Help:FAQ:Inflight/8/en

The tail oscillates in horizontal position with very low frequency or irregularly while hovering.

• The HeadingLock gain of the tail gyro is too high. Reduce the HeadingLock gain (PARAMETER point D) by one step and increase the tail gain instead.
• Due to mechanical issues the tail gyro can not work precisely. Check the linkage and mechanics for absolute free movement without hard points and use a dedicated rudder servo that is fast and accurate and that allows a high control frequency.