On Mar 6, 8:46*pm, 2KA wrote:
Hi Kirk,

Thanks for your comments. *I can add Warning areas pretty easily.
But, if you don't mind educating a land-locked Westerner a bit, I'd
like to know more about how and where Warning areas affect glider ops.
I guess I mistakenly assumed they didn't, so I intentionally excluded
them.

As far as the Grand Canyon goes, it does not currently appear in the
national Airspace System Resource File (NASR) database. *I don't have
any source for the data that isn't covered by a copyright and/or
restricted copy license. *As you may know, all of the rest of the data
on my site is free, and freely redistributable -- that's kind of it's
reason for existence. * *If someone can point me to a free source for
the Grand Canyon in a suitable format, I'll be happy to add it.

L.

Lynn,

Not sure if there is much use for the overwater warning areas, but I'm
more concerned with other "odd" bits of airspace that might crop up.
I just happened to notice that some smaller airspace within MOAs are
missing, and of course, for me, the Grand Canyon Special use airspace.

My personal feeling is that all airspace bounderies below 18000 ft are
worth having - it's easy to open the file in SeeYou and delete any
that aren't needed (like overwater warning areas ;).


I found the differences by comparing the .sua files from your NASR
database to a .sua made from the FAA NFD database.

Cheers,

Kirk