Radio altimeter fault triggered Turkish Airlines crash

wrote
The shuttle does an autoland approach and touches down manually.

Not according to Wikipedia.....

From Wikipedia, the free encyclopedia

In aviation, autoland describes a system that fully automates the landing
phase of an aircraft's flight, with the human crew merely supervising the
process.

With 25 years of airline experience flying Boeing jetliners, I would
suggest that I know more about "autoland" operations and equipment than
either you or MX.

More from Wikipedia.....

Autoland requires the use of a radio altimeter to determine the aircraft's
height above the ground very precisely so as to initiate the landing flare
at the correct height (usually about 50 feet).
Autoland is highly accurate, and it lands the plane at the same spot on the
runway every time with very high accuracy. This is in contrast to manual
landings, where touch down points are relatively widely distributed within
the Touch Down Zone on the runway.

Bob Moore
PanAm (retired)

Dave Doe wrote
It was suggested (stated I spose) by another poster here that "most"
landings are autolands. I categorically disagreed with that statement.

Air New Zealand do about 1 in 7 autolands.

What ratio did you do?


Probably about 1 in 20. The company would have liked more, but that
took all of the fun out of flying.

Bob Moore

Robert Moore wrote:
wrote
The shuttle does an autoland approach and touches down manually.

Not according to Wikipedia.....

Well, according to NASA, it does:

http://science.ksc.nasa.gov/shuttle/...n_profile.html

http://www-pao.ksc.nasa.gov/kscpao/n...andingaids.htm

http://www-pao.ksc.nasa.gov/kscpao/r.../1992/1-92.htm


--
Jim Pennino

Remove .spam.sux to reply.

On Sat, 07 Mar 2009 00:49:41 GMT, Robert Moore
wrote:

wrote
The shuttle does an autoland approach and touches down manually.

Not according to Wikipedia.....

From Wikipedia, the free encyclopedia

In aviation, autoland describes a system that fully automates the landing
phase of an aircraft's flight, with the human crew merely supervising the
process.

With 25 years of airline experience flying Boeing jetliners, I would
suggest that I know more about "autoland" operations and equipment than
either you or MX.

More from Wikipedia.....

Autoland requires the use of a radio altimeter to determine the aircraft's
height above the ground very precisely so as to initiate the landing flare
at the correct height (usually about 50 feet).
Autoland is highly accurate, and it lands the plane at the same spot on the
runway every time with very high accuracy. This is in contrast to manual
landings, where touch down points are relatively widely distributed within
the Touch Down Zone on the runway.

Bob Moore
PanAm (retired)

the problem here seems to be the inappropriate substitution of
"coupled approach" with "autoland" by certain people.

writes:

Yeah, right.

I know, thanks.

It is routine to turn on autoland during approach and turn it off just
before touchdown.

If you turn it off, it's not autoland.

writes:

The shuttle does an autoland approach and touches down manually.

There's no such thing as an "autoland approach." You can automate the
approach, but if the automation doesn't take you to touchdown, it's not an
autoland.

The whole point is, contrary to MX's claim, not EVERY approach that
starts as "autoland" (however you want to define it) ends with the
A/C on the ground for EVERY airplane.

The point is that you're reaching, like so many others here. It's so
important to you to contradict me that you become careless.

This can be dangerous for pilots, as they may feel so determined to prove that
they are right that they'll kill themselves in the process. And it applies in
other domains, such as driving, too.

Just go look it up! wrote
the problem here seems to be the inappropriate substitution of
"coupled approach" with "autoland" by certain people.

Yep!

Bob

Mxsmanic wrote:
writes:

The shuttle does an autoland approach and touches down manually.

There's no such thing as an "autoland approach." You can automate the
approach, but if the automation doesn't take you to touchdown, it's not an
autoland.

Funny, the FAA seems to think otherwise:

http://www.faa.gov/airports_airtraff...pubs/PCG/A.HTM

From the ink:

"AUTOLAND APPROACH- An autoland approach is a precision instrument
approach to touchdown and, -IN SOME CASES-, through the landing rollout."

Emphasis mine.

Wrong again.


--
Jim Pennino

Remove .spam.sux to reply.

Mxsmanic wrote:
writes:

Yeah, right.

I know, thanks.

It is routine to turn on autoland during approach and turn it off just
before touchdown.

If you turn it off, it's not autoland.

Nope, it is an autoland approach as defined by the FAA in:

http://www.faa.gov/airports_airtraff...pubs/PCG/A.HTM


--
Jim Pennino

Remove .spam.sux to reply.

In article ,
says...
writes:

Yeah, right.

I know, thanks.

It is routine to turn on autoland during approach and turn it off just
before touchdown.

If you turn it off, it's not autoland.

Like most landings eh?

--
Duncan