Hi Tibor,
did you already contact Christian at www.streckenflug.at.
He showed us the glider routes in Austria.
Since the pilots from Vienna often fly in your country, they might be verry
willing to help to fight airspace restrictions
Regards and good success
Walter

"Tibor" schrieb im Newsbeitrag
news:28104876.3949.1330968367200.JavaMail.geo-discussion-forums@vbbed8...
Hi,

are there any open/free tools to datamine on database of many IGC files?

There is a threat that the free airspace for gliding in Slovakia is going
to be significantly restricted. We need tools which help prepare arguments
about airspace usage and frequency of our flights.

If I was starting from scratch I would probably try to import all the
flights into a GIS database (PostGIS) and do the data cleaning and queries
there. Does anybody have experience with this?

Thanks for you help,
Tibor Arpas