Bush Sr's Gulfstream crash...

Big John wrote:



4. If on an ILS, then altimeter setting would not be of prime
importance. You ride the beam down until you see the R/W (or minimum
altitude and go around) and land. The beam (needles) is/are the
governing factor on az and el.

But if the altimeter is not set correctly you don't know where the DH
really is.


ILS is sited to have a touch down point
of say 2000 down R/W. Forget the exact figures.

1000.

Newps wrote in news:u6SdnQxazM3L8TjcRVn-
:



Big John wrote:



4. If on an ILS, then altimeter setting would not be of prime
importance. You ride the beam down until you see the R/W (or minimum
altitude and go around) and land. The beam (needles) is/are the
governing factor on az and el.

But if the altimeter is not set correctly you don't know where the DH
really is.



Incorrect altimeter setting will not make you land short of the runway. It
will take you closer to the touchdown point. In addition, the altitude
shown at the final approach fix can be used to verify the altimeter
setting.

"Newps" wrote in message
...


Big John wrote:



4. If on an ILS, then altimeter setting would not be of prime
importance. You ride the beam down until you see the R/W (or minimum
altitude and go around) and land. The beam (needles) is/are the
governing factor on az and el.

But if the altimeter is not set correctly you don't know where the DH
really is.

Are you really watching the altimeter 7 miles out when locked on the G/S?
Pinky swear? There's some whacked lesson to be learned here.

moo

The GIII has a radio altimeter and GPWS. Either they had problems
being that far below the ILS or they were scud running and ignoring
everything the aircraft was telling them. Guess the NTSB will let us
know which.


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Don Hammer wrote:

The GIII has a radio altimeter and GPWS. Either they had problems
being that far below the ILS or they were scud running and ignoring
everything the aircraft was telling them. Guess the NTSB will let us
know which.

Why would anyone scud run under a working ILS? Is there any advantage to
that under any circumstance?

- Andrew

On Thu, 25 Nov 2004 21:45:29 -0500, Andrew Gideon
wrotD:

Why would anyone scud run under a working ILS? Is there any advantage to
that under any circumstance?

- Andrew

There is no advantage, but more than a few have dipped under the
glideslope to take a peek for some stupid reason. Back in my FE days,
I once nailed a captain in the back of the head with a clipboard after
he ignored the FO's two dots low callout. Like I said before, the
NTSB will probably shed some light on what happened here.


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