Bert Willing writes:
Just take the polar from any ASW20 (A, B or C), there is no significant
difference.

No significant difference? According to de.wikipedia.org : glide ratio -
ASW 20 - 42 @ 115 km/h, ASW 20B - 43 @ 120 km/h, ASW 20BL - 46 @ 95 km/h.
Maximum weight ASW 20B 525 kg, ASW 20BL 430 kg.
Sorry but for me this all this make rather significant difference. But
maybe I'm wrong, cause I don't know any of the ASW 20 at all.

regards
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