Description

A T-tail is a type of empennage where the tailplane (horizontal stabilizer) is mounted to the top of the fin. Observed form behind, this looks like the capital letter T. Sometimes the term is used to refer to an aircraft with such empennage.

The main advantage of a T-tail is that during normal flight conditions the elevator is above most of the effects of downwash from the propeller (in case of a propeller-driven aircraft) and the airflow around the fuselage and wings. Elevator operation in undisturbed air allows control movements that are consistent throughout most flight regimes.