On Saturday, November 12, 2016 at 3:15:42 AM UTC-6, Tango Whisky wrote:
The polars measured ny Idaflieg are never published.

However, you can obtain a paper copy by writing an email to vorstand at idaflieg dot de.

As they are a bunch of students busy with all sorts of things, don't expect an answer within the week.

Far as I know they are asking for a modest fee for sending you the polar and want you to promise to not share the results.