On Jun 21, 10:26 am, Markus Gayda wrote:
What i dont get is why someone would want to build an old type of glider.
Why not update the profile and give us DuoDiscus performance? (or DG1000)
While 41:1 certainly sounds nice it is nowhere near the performance of a modern
20m ship.

Because it's too expensive. The R&D and computer time required to make
developing new profiles and fuselage-wing junctions etc. worthwhile is
immense.

For the same reason i would never again buy a ASK21 for our club. Too expensive
for its performance.

The K21 isn't built for performance, though it goes XC very well and
better than a lot of people think. (It's also much more representative
of the performance of what a new XC pilot is likely to end up flying.)
It's built to be the ultimate trainer - which it is, apart the
slightly unfortunate design requirement of being as spin-resistant as
possible.


Dan