On Fri, 22 Feb 2008 13:35:58 -0800 (PST), "Ken S. Tucker"
wrote:


Once the rolling air from ground effect is achieved, a new
dynamic is effective. Of course that "rolling air" needs AoA
to be maintained, so nudging forward kills the "ground effect"
and you're very near a 3 point landing.
Maybe you guys want to analyse "ground effect lift".
Ken

If the wing is still flying in ground effect it's not going to quit
just because some one lowered the nose. Yes, you can plant the nose
gear on, but the wing will continue to fly which can be a bit
inconvenient as well as disconcerting and uncomfortable.

Ever see an airplane trying to do an imitation of a wheelbarrow?
Just think of that tiny little nose gear supporting (and directing)
the entire airplane's weight plus the extra downward force from
prematurely lowering the nose (forcing it on). As the nose gear is
usually coupled to the rudder it *may* not be going in the same
direction the airplane is.

I saw a *loaded* Aztec roll the tire right off the rim doing that,
with *most* of the "North 40" watching. Fortunately the rim and tire
survived, as did the twin and it only took a new inner tube and a bit
of elbow grease to get it ready to fly out that evening.

No, I wasn't flying it, but I was in charge of the group coming in on
it which was a bit hard on the blood pressure.
Roger Halstead (K8RI & ARRL life member)
(N833R, S# CD-2 Worlds oldest Debonair)
www.rogerhalstead.com