Vertical Stabilizers. Options

[airlinepilote]

Hi guys,

If got a question.
Its about the vertical stabilizers.
Why does some fighters have two of those and some have one?
Look at this: http://www.richard-seaman.com/Aircraft/Air...Afterburner.jpg
2 Vertical stabilizers.

And this: http://www.aeronautics.ru/lockheed/f-16_fa...lcon/f16-10.jpg
1 Vertical stabilizer.

Why is that?
And what are the differences about it?

[Corsair]

I can't remember if it was the B-2 that has this technology, or some other plane; but I think the landing gear actually rotates to line up with the runway.

I know the B-52 can.


Okay. "Stepping on the ball" means that you are using the rudder to 'coordinate' your turn. (The rudder points the nose of the plane into the turn so that the plane doesn't slide 'uphill' as you bank due to centrifugal forces.) Now, I'm not a pilot (yet) but it would seem to me that if you banked it hard enough, the gravitational forces causing the aircraft to 'slide' down would perfectly counteract the centrifugal forces causing the plane to 'slide' up. Thus, you would use gravity to coordinate your turn - without a rudder.

Ya think? Lemme know. :D