On 11/20/2005 12:41 PM, Bob Gardner wrote:

I don't see what the tower being open or closed has to do with it. They
don't shut down the ILS when the last controller goes home, and a plane in
the restricted area distorting the glideslope signal is not a good thing.

Sure. But the tower is the controlling authority which is instructing
planes to hold clear of the ILS critical area.

If the tower is not in operation, who gives the order?

If the pilot on the ground is supposed to know when to hold clear,
how does he know? He may not even know a plane is using the
ILS. And besides, the tower only needs to keep it clear when the
weather is below 800/2, so does this go for the non-towered airport
as well?

Where is this defined?


Bob Gardner

"Mark Hansen" wrote in message
...
In this month's AOPA Flight Training magazine, I read an article
which implied there was still some requirement to remain clear of
the ILS critical area even when the tower was closed.

I've been looking through the AIM, and can't find anything like
this. It does say that when the tower is open, it will keep the
area clear when there is an aircraft past the FAF and the weather
is below 800/2.

Is there a rule which states that the ILS critical area must be
kept clear at any time when the tower is not in operation?

Can you please provide a reference?

Thanks,

--
Mark Hansen, PP-ASEL, Instrument Airplane
Sacramento, CA




--
Mark Hansen, PP-ASEL, Instrument Airplane
Sacramento, CA