Stefan napisał(a):
All I see is that big structural element which seems to severely limit
the instructors vision. Not exactly what I would call safe in a glider
focused on primary training.

From what you're saying I can see that you have never flown Puchacz.
I'm instructor and I've spent some time in the back seat of this glider,
never had any problems with visibility. The Perkoz seems to be better
when it comes to visibility so don't worry. Besides what is more
important in a trainer is a visibility from the front seat, where
student place is.


Regards
--
--=JJay=--
www.aeroklub.deblin.pl, my photos on airliners.net - http://tiny.pl/rcwl