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In aircraft a T-tail is an arrangement of the tail control surfaces with the horizontal surfaces (tailplane and elevators) mounted to the top of the fin, rather than the more common location on the fuselage at the base of the fin. The resulting arrangement looks like a T when viewed from the front, hence the name.

A T-tailed British Aerospace Avro RJ-85 of SN Brussels Airlines (Belgium)

There are a number of pros and cons to this arrangement.



Some aircraft feature a tailplane that is mounted part way up the fin rather than right at the top. This form of design combines some of the pros of both the T-tail and conventional arrangements, while avoiding the most serious cons. The Sud Aviation Caravelle is one example of an airliner with a mid-fin mounted tailplane.