1) Aircraft tail configuration
Found on
https://www.crosswordclues.com/clue/v-tail
In aircraft, a V-tail (sometimes called a Butterfly tail or spelled Vee-tail) is an unconventional arrangement of the tail control surfaces that replaces the traditional fin and horizontal surfaces with two surfaces set in a V-shaped configuration when viewed from the front or rear of the aircraft. The rear of each surface is hinged, and these mov...
Found on
http://en.wikipedia.org/wiki/V-tail
Tail consisting of 2 surfaces at an extreme dihedral angle The elevator and rudder functions are mixed and the fin and rudder can be dispensed with
Found on
http://www.encyclo.co.uk/local/22135
No exact match found.
