Stefan wrote:
BTW: There are many gliders which are certificated for some acro
figures: ASK-21, DG-500, DG-1000 just to name a few. All of them have
T-tail, none of them is primarily an acro glider, all are cross country
gliders which just happen to be allowed for some simple acro figures,
and, you guessed it, none of them is certificated for flick maneuvres.

The flight manual for my T-tailed DG-303 Acro allowed flick maneuvers
and tail slides...

Marc