On Saturday, October 24, 2015 at 10:13:06 AM UTC-5, JS wrote:
Perhaps download this manual in English, and look at page 46.
Jim

http://www.williamssoaring.com/fleet/ASK21_manual.pdf

Thanks.

I found these pages from the manual which are much clearer and, easy to print graph.

http://www.alexander-schleicher.de/w...TM35_US_HB.pdf