"Ben Jackson" wrote in message
news:U1gjc.26305$cF6.1144747@attbi_s04...
In article ,
Judah wrote:
I seem to recall the CNX-80 Tutorial talks about it being used for
weather avoidance during IFR enroute flight.

That's exactly what the manual for the old Apollo LORAN 604 says
regarding PTK on the LORAN. You'd think they could come up with a
second use for it by now!

As far as I know PTK for GPS just keeps those $900 annunciator/switch
makers in business.

The big boys with their INS have it, why shouldn't you?