In article ,
Big John wrote:

Your right, the B-25 had two of those wiggly things (called rudders).
They also had two verticl stablizers just ahead of the rudders that
did not move.

Your going to confuse some of these young scallywags with your
termonoligy G

Big John

So what are they if they are on something like an F-15 or F-18?

Bernadette