Why do some helicopters have elevators on the empanage?
I can maybe see that thing being of limited value at high horizontal speeds... assuming I am understanding this piece of poorly worded bafflegab.
But... I see that thing being utilized even at low speeds too... and I have to ask what benefit is being derived from it? Am I having a brain fart?
I fear and loathe manned rotorcraft; and I think tilt rotors are truly the work of the devil! I will tolerate no dissention on that one!
Any clarity you can provide is sincerely appreciated.