(USA) Airport data now available with Airspace files

In addition to the NDF-based airspace files that subscribers at
justsoar.com will receive, turnpoint files describing airports from
the current FAA NASR database will also be provided with the download.

I think this feature will be pretty useful. If you provide a turnpoint
file to the web page to specify your area of interest, with either a
Cambridge format (.dat) or SeeYou (.cup), the pair of files you get
back (in addition to the trio of airspace files) will be:

1) A copy of the turnpoint file you provided, with turnpoint records
added for all airports more than a mile away from any of the
turnpoints;
2) A turnpoint file in the alternate format, with all airport records
in the area of interest.

If you provide coordinates instead of a turnpoint file, the two
turnpoint files will of course contain all of the airports in your
AOI. So you can do business just about any way you like.

The proverbial motivating use case goes as follows:

1) Pez decides to go Parowan for the next Region 9 contest, along with
everything else.
2) Pez uses parowan4.cup, from John Leibacher's site, to get the
latest FAA airspace and airport data from justsoar.com.
3) Pez installs the .cup file from justsoar.com on his PDA for SeeYou
Mobile, and the .txt airspace file in SeeYou desktop to create
airspace data for his SeeYou Mobile.
4) With peace of mind at having the latest FAA airspace and airport
data, Pez blazes to win the sniffer class. His friends are amazed and
he gets the girl, just like I did.

(The above, of course, is not a promotion for SeeYou Mobile. A similar
use case for WinPilot applies. And XCSoar ... and GNII ...)

It was, of course, a shameless plug for justsoar.com, brought to you
by my newest crewmember, Ian Mitchell (2 December, 4 pounds 12 ounces,
released from tow six weeks early but climbed out of the hole on a 12
knotter like he was never in trouble).

Go fly.

~ted/2NO