"John Gaquin" wrote in message
. ..
[...]
All the data is public available, but I believe certain elements of
formatting and presentation are copyrighted. You could start publishing
your own chart service, I'm sure, but the tough part would be convincing
virtually every pilot and airline in the world to switch over to a
different format chart.

It would be more than tough. It would be impossible. A person would
probably never do better than a niche competitor to Jeppesen, unless they
came up with some huge innovation that was so important, it made a
significant difference in the use of the charts. Even then, they won't come
close to "convincing virtually every" user.

But they don't need to. I don't see any reason someone couldn't carve out
that niche and make a decent living. If it can work for VFR (O'Keefe), why
not IFR?

Pete