Dual Tires on Libelle 201b

The September 2004 issue of 'SOARING' magazine has
photos of the Libelle 201b flown by American Tim McAllister
in the Third Club Class World Gliding Championships
and this slighty tweaked Libelle looks a bit different.

1. It has winglets, and
2. It has dual tires, like the ASW-22!

It probably has other tweaks that aren't apparent to
my eyes.

What's the deal with the dual tires? Does it permit
a higher gross weight? But if it can carry a lot of
water, do the European Club Class rules allow water?
Or, are the duals just one way to boost the glider's
weight without carrying 'ballast.'?

No, I don't have a 201, but I do find these tweaks
interesting.

Thanks,

Ray Lovinggood
Carrboro, North Carolina, USA