Rainboe,
Finally, with respect to the tail, the downwash from the wing is of considerable importance. Air is deflected downward when it leaves a wing, and this deflection of air results in the wing reaction force or lift. This deflected air flows rearward and hits the horizontal-tail plane. If the airplane is disturbed, it will change its angle of attack and the downwash angle also changes. The degree to which it changes directly affects the tail's effectiveness. Hence, it will reduce the stability of the airplane. For this reason, the horizontal tail is often located in a location such that it is exposed to as little downwash as possible, such as high on the tail assembly.
Adapted from Talay, Theodore A. Introduction to the Aerodynamics of Flight. SP-367, Scientific and Technical Information Office, National Aeronautics and Space Administration, Washington, D.C. 1975. Available at
http://history.nasa.gov/SP-367/cover367.htm
In addition to the above, when on the ground, the
downwash has no place to escape and is forced back
up by the ground.
What happens is that the horizontal stab sort of "stalls" when it enters the wing downwash on rotate, and the effectiveness of the elevator decreases.
As for on what aircraft it feels more, I would guess
that the longer the distance between the wing and tail, less effect. Also, the vertical position of the Hstb relative to the wing would be a factor.
Cheers,
M