I don't think it's a poor performer in weak conditions, you got it : bank it
hard and you can climb with everybody else.
The difference is that something like the SZD-55 or Discus (or any of the
gliders with that kind of wing shape) will be a little easier to climb, and
probably outclimb the Jantar in similar conditions.
Better climb is the very reason why they go out of their way to shape those
wings like that.


"Bob May" wrote in message
m...
I don't understand all the comments about poor weak condition
thermalling. Slow it down to about 45 knots and bank it over hard.
It will out climb just about anything.