"Matt Barrow" wrote:


"Peter" wrote in message

Captive means there's no alternative. Commercial operators have
alternatives
(NACO) but don't avail themselves of that option.

Why?


NACO does USA only. There is a world outside the USA (if only a very
small and insignificant one I must admit ).

Correct....sorta.

Now, considering that only a tiny fraction of airlines and commercial
operators operate outside US borders, explain why the purely domestic
operators don't just go with the virtually free NACO option.

Another reason is that some airlines get a customized version of the charts from Jeppesen with the
company's own routes and procedures included, that are not part of the normal published set.

Mike