
1) Aircraft tail configuration
Found on
https://www.crosswordclues.com/clue/t-tail

A T-tail is an empennage configuration in which the horizontal surfaces (tailplane and elevators) are mounted to the top of the vertical stabilizer. The resulting arrangement looks like the capital letter T when viewed from the front or back, hence the name. This differs from the traditional configuration in which the horizontal control surfaces a...
Found on
http://en.wikipedia.org/wiki/T-tail

Arrangement where the tailplane is mounted on top of the fin
Found on
http://www.encyclo.co.uk/local/22135
No exact match found.