David

Wasn't, except you normally didn't have the option of tracking
outbound (on beam) from cone of silence like you can with ADF on a NDB
after station passage. You flew a heading and time for distance. Think
back on those days and shudder G

Big John

On Mon, 14 Jul 2003 12:14:01 GMT, David Megginson
wrote:

Big John writes:

Sidney. All of the above G The approach plate gave the time to
field in minutes and seconds listing several speeds to accommodate
all the aircraft in inventory. Normally max time would only be 3-4
minutes and normally just 1-2 minutes after crossing cone of
silence. You rarely landed straight in and many of the headings to
field were not lined up with a runway. After sighting the field you
would circle and land on the active runway. If you were in radio
contact with the field/tower you could get surface wind and compute
a ground speed from cone of silence to field, other wise you made a
WAG from forecast and what you encountered en route.

This does not sound a lot different from a typical NDB approach today,
when the NDB is off the field.


All the best,


David