David Luff writes:

 > That's a very good idea.  I hadn't thought of UNICOM, but it might
 > be a good intermediate stepping stone from fully automated stuff
 > like ATIS to very interactive (and thus hard!) stuff like tower.  I
 > shall have a look...

It should just be a greatly simplified version of the ATIS, preferably
on demand.  If you just displayed

  YYYY Unicom, wind (favours runway XX|calm), no traffic reported
  in the circuit.

that would do it.  UNICOM doesn't give landing or takeoff clearance;
sometimes it will give taxiing instructions, order a pizza, or book
your rental car, but we don't need to add that right now.  UNICOM is
(almost?) always on the regular ATF, so it's the same frequency that
the pilots use for their position checks.

In Canada, we also have something halfway between UNICOM and a tower,
called a mandatory frequency (or MF).  Usually, it's at an airport
with an FSS and no radar; the FSS gives a lot more guidance to landing
and departing aircraft than a UNICOM does, but still without actually
issuing clearances or instructions other than requiring position
reports.


All the best,


David

-- 
David Megginson, [EMAIL PROTECTED], http://www.megginson.com/

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