Why can't people kick those things STRAIGHT for touchdown??!!
Originally Posted by Mary
Would TCAS be helpful in this case?
Certainly does, and very well. Bobwi has it nailed: unless someone is doing a wiffodil approach, it is very easy to work out how far away they are using the height diffferential displayed on the TCAS.
That said, sometimes one can see an aeroplane on long-medium final but there is no TCAS return.