Intercepting the ILS

On 01/26/06 07:17, wrote:
Hello,

Yesterday I was out getting an IPC. We were doing the Stockton, CA
ILS. ATC
had us intercepting the localizer at 2000 feet. The altitude for
glideslope
interception is 1800 ( underlined ).

My old CFII taught me that the glideslope interception altitude on
the chart is a minimum altitude, and that it was fine to intercept it
higher. So I just tootled along
at 2000 - figuring it was simpler to do one configuration change at GS
interception
rather than three changes - one to descend the 200 feet, another to
level off, and
a third to intercept the glideslope.

The new CFII criticized this procedure and told me that the plate
specified 1800,
and it was wrong to intercept at 2000. Which one was right?

- Jerry Kaidor ( )


I was taught to never intercept the GS from above, due to signal echoes,
etc.

However, there are cases where you're vectored in at a higher altitude.
In this case, you'll actually intercept the GS at the higher altitude
further out from the normal interception point.

You can go ahead and follow this signal down, as a way to get to the
OM at, in this case, 1758'. If you're too high when you get to the
OM, then you're not on the correct GS signal, and you should execute
a missed approach.


--
Mark Hansen, PP-ASEL, Instrument Airplane
Cal Aggie Flying Farmers
Sacramento, CA