Oops. Sorry to confuse Grobs. My point of reference is the Grob 103
Acro, a 2-place tandem glider. For a different look at acro try this
home video (not by me) but very well done. Takes a few minutes to
load but you might like it. This is an ASK 21. Similar to the Grob
103. It is used by the Air Force Academy cadets in glider acro:

http://www2.dfk.no/Arkiv/Videoarkiv/...00/SEILFLY.mov

Gene


If everything's under control, you're going too slow.
-- Mario Andretti