Twilight Zone origins

Come on, Guys, A/N navigation? History of aviation. It's pre VOR, and it
worked when we had nothing better. There was a thread about a year ago about
a transmitter kicking around still supporting that technique, just to
preserve history, but my server doesn't keep anything older than a year ago
(history loses on USENET too, I guess).

"Robert Moore" wrote in message
. 6...
| Big John wrote
| Say what???
|
| Tom Pappano" wrote:
| How 'bout this: The Twilight Zone:
| This is from "Instrument Flying" by Weems and Zweng, 1940.
|
| Seems as if Weems and Zweng would have fit right in with
| a lot of today's usenet posters. :-)
|
| Bob Moore