On Sat, 8 Jun 2013 19:59:19 +0000 (UTC), Martin Gregorie
wrote:

On Fri, 07 Jun 2013 09:04:55 -0700, Charlie Papa wrote:

He was surprised at the challenge the aero tow posed, but learned the
attitude/speed control, then gentle turns, to steeper ones, and he
positively shone at Dutch Rolls.

Curiosity: what do you mean by "Dutch Rolls"?

I understand a Dutch Roll as meaning the coupled wing rocking and yawing
instability shown by an aircraft with a vertical tail volume that's a
little too small for stable flight, i.e. the fin moment is too short and/
or the fin area is too small.

In the context of glider training, it's a shameful misnomer for an
exercise in which you roll alternately left and right while keeping
the nose on a point -- thereby learning to cope with the strong
adverse yaw of long wings.