[OSM-talk] Free aerentical data

[J.D. Schmidt]

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