thumb|British Aerospace 146|Avro RJ-85 of [[SN Brussels Airlines (Belgium)]] thumb|McDonnell Douglas MD-90 thumb|Piper PA-44-180 Seminole thumb|Grob G 109 [[motor glider]] thumb|Beechcraft 1900D of the [[Swiss Air Force]] thumb|T-tail of aircraft (Tu-154)
thumb|British Aerospace 146|Avro RJ-85 of [[SN Brussels Airlines (Belgium)]] thumb|McDonnell Douglas MD-90 thumb|Piper PA-44-180 Seminole thumb|Grob G 109 [[motor glider]] thumb|Beechcraft 1900D of the [[Swiss Air Force]] thumb|T-tail of aircraft (Tu-154)
A T-tail is an empennage configuration in which the tailplane of an aircraft is mounted to the top of the fin. The arrangement looks like the capital letter T, hence the name. The T-tail differs from the standard configuration in which the tailplane is mounted to the fuselage at the base of the fin.
Discovered by embedding cosine similarity (sentence-transformers MiniLM, 384-dim).