Anti-collision mechanism

"Ash Wyllie" wrote in message
...
AnthonyQ opined

Ram, if I recall that incident correctly, ATC had repeatedly requested a
heading change and direction of turn (don't recall actual numbers) but
the
flight crew repeatedly read back incorrectly. In the end the controller
deferred to the "obviously" more experienced and knowledgeable captain -
and
gave in...

With respect to the capability of TCAS - it only interrogates the
transponders of nearby airplanes. It then figures out their distance
away,
bearing and delta altitude (assuming a mode C or S transponder). It will
give a Resolution Advisory (Climb or Descend) instruction. It does not
give
any terrain warning.

Maybe if we put mode C Transponders on every mountain top... And radio
tower
for that matter.


Ummm...doesn't TAWS read a map database that holds such obstructions?


--
Matt
---------------------
Matthew W. Barrow
Site-Fill Homes, LLC.
Montrose, CO

In article ,
"Matt Barrow" wrote:

Ummm...doesn't TAWS read a map database that holds such obstructions?

DTED (terrain data) is pretty constant. Vertical obstructions are quite
the challenge in that it is almost impossible for the various database
providers to keep up with every tower that is out there.

--
Bob Noel
looking for a sig the lawyers will like

"Bob Noel" wrote in message
...
In article ,
"Matt Barrow" wrote:

Ummm...doesn't TAWS read a map database that holds such obstructions?

DTED (terrain data) is pretty constant. Vertical obstructions are quite
the challenge in that it is almost impossible for the various database
providers to keep up with every tower that is out there.

They use the same data that the NACO/FAA provides, with the same frequency.


Matt
---------------------
Matthew W. Barrow
Site-Fill Homes, LLC.
Montrose, CO