If they do then what aircraft are they installed in. This stabilizer is not a T-tail shaped stabilizer. [![enter image description here][1]][1]As you can see their is a 2 v shaped vertical stabilizers with a horizontal stabilizer hanging on the each of the vertical stabilizers. So different from a V tailed. And what advantages would this design have over a t-tail for eexample. [1]: https://i.sstatic.net/0obTB.jpg