Rahkonen Jukka skrev: > J.D. Schmidt wrote: > > >>> "Users: X-Plane users have added many other airports, >> nav-aids and all the taxiways. This data is imported into >> the same database as the DAFIF data, and in many cases >> enhances or corrects the DAFIF data." >>> It is under GNU GPL >>> >> Please refrain from importing any danish airports - they have >> been manually inserted long time ago in OSM from official and >> current airport charts supplied by the local civil aviation authority. >> >> An example - EKCH/CPH - Copenhagen airport/Kastrup can be seen here : >> http://informationfreeway.org/?lat=55.619414169994286&lon=12.6 >> 52493997348078&zoom=14&layers=B000F000F >> >> All runways, taxiways, and apronareas has been taken from the >> official EKCH ADC plate, similar data for airports in other >> countries should be available freely from the civil aviation >> authority governing the airspace in that country. IMHO the >> data gained this way is better, since it is current, >> official, and verifiable. > > Naturally that data are preferred and it would be bad idea to > automatically update anything that exists already. But maybe making the > first insert for missing places. By the way, X-Plane web page informs > that in the USA aerentical data are no more public for security reasons. > > > -Jukka- >
AD plates are available for any licensed pilot via the FAA, otherwise it would be impossible to plan a flight between airports. You might not as the average "Joe Public" download the data anonymously anymore, but have to log in with verifiable credentials such as a PPL license number, in order to get the data from the FAA site. Same procedure for the CAA in the UK - pre 9/11 the data was browsable by anyone, today you must register in order to download the PDF version of the AD information or browse the online version. Dutch _______________________________________________ talk mailing list [email protected] http://lists.openstreetmap.org/cgi-bin/mailman/listinfo/talk
