Radio altimeter fault triggered Turkish Airlines crash

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.