At 06:00 26 February 2005, Eric Greenwell wrote:
I start using crab when I'm close to full rudder in
the
side-slip, which can happen in strong cross winds.
The low wing still seems sufficiently high at that
point,
but I don't have a measurement for the angle it makes
with the ground.

Regardless, it's very rare that I've had to land where
the height of the grass or bushes was a concern.
If I routinely landed where the wing tips were over
20'-30' high grass, perhaps I'd be using a crab instead.

Here's some interesting data. ASK-21's have quite
a bit of dihedral and relatively stiff wings as
compared to most fiberglass single place gliders.
A K-21 pilot landing with the upwind wing leading
edge parallel to the ground has a 3.5 degree bank.
If he was foolhardy enough to touch down with the
main wheel and upwind wing at the same time,
he would be in a 6.5 degree bank. So it might
seem reasonable to expect that a pilot proficient
in side slips would therefore maybe be willing to
touch down with a 5 degree bank.
M Eiler