• GNSS-Online Contest, the fast competition. Know on Wednesdays what was flown on the weekend. 
  Online Contest

• International place for the exchange of turnpoints by John Leibacher http://soaringweb.org/TP/

• New USA Airport Data File

There is a new US airport data file available on the Worldwide Soaring Turnpoint Exchange. It includes all the public and private airports in the USA. The data comes from files provided by the F.A.A. and the data is very accurate and current. You can access the data file here:
http://soaring.gahsys.com/TP/FAA/

• Probably the most well-known and maintained turnpoint catalogue that exists. Michael- Lorenz Meier has an awful lot of work with it. Thank you very much! 

You can download the current Meier file. Copy the down loaded file WELT2000.WGS into the directory C:\ My documents\StrePla and replace the old one.

Download the file

• You will find the homepage of Michael Meier here: http://www.segelflug.de/segelflieger/michael.meier

• The LSC Schliersee has a very good turnpoint catalogue. Furthermore, many flights with flight path representation are shown on the map. www.LSC-Schliersee.de

• All formulae for cross country flight (GNSS-formula, photo formula, etc.) in different formats by the DAEC Referat Segelflug, Abt. Download.

• IGC homepage. Amongst others, the IGC determines the criteria with which the flight recorder has to work. http://www.fai.org/gliding/