Re: Snapshot of US National Airspace Data CD-ROM

["John C. Peterson" <jaypee@netcom.com>]

On Wed, Dec 15, 1999 at 02:47:46PM -0700, D.F.S. wrote:
> > FWIW,
> > 
> >    I received my copy of the (US) National Airspace Data CD-ROM last
> > week. For those that were interested in it, here is a little snapshot
> > of what is on it...
> > 
> Is there a plan to make this set as a whole in the original format
> avalible on the net?

   The "raw" fixed length record files are really HUGE to put
it mildly. But, given that they contain *tons* of blanks, they can
probably be compressed quite a bit with (b|g)zip. I dont have the CD
handy, but I can post a file listing and some compression stats after
I get home this evening.

   Unfortunately, the resources I'm given for the fplan web site
won't be enough in any case. As it is, I barely have enough space
for the compressed versions formatted for fplan. But, if anyone on
the list has extra server space and bandwidth, please speak up and
let us know!

> Is there any copyright or legal limitation preventing this?
> 

   I did not see any files on the CD that resembled a license
agreement.  When I get time, I am going to ask Katherine Spencer,
the FAA contact, about this issue since it is relevant to the
redistribution of the fplan format files. I'll let you know...

   I'm a little surprised by the sudden interest in the "raw"
data. Just curious about what people plan on doing with it????

John

-- 
 ___|___  | John C. Peterson, <jaypee@netcom.com> | "Once you have flown,
  -(*)-   | you will walk the earth with your eyes turned skyward, for there
  o/ \o   | you have been, there you long to return." -- Leonardo da Vinci.
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