On Saturday, February 14, 2015 at 7:49:43 AM UTC-5, Fox Two wrote:
The best L/D of a glider is a meaningless number. It is just one point on the polar, and plus, it is at a point that we rarely fly. A better question is what is the L/D at 100 knots (185 km/h)? It's an even better question if we assume high wing loadings. Ultra long wings are only better above the plains in very weak conditions.

Chris

Really? When thermals die it is all that matters.