Originally Posted by FullWings
If I'd set two aircraft on a collision course in error I'd want something to manipulate the outcome of my instructions!
You assume that the instructions inevitably would have lead to a collision.
Originally Posted by FullWings
Never heard/seen any complaints myself, especially from people who understand how the systems work.
Controlling the airspace by radio communications takes time. A controller telling one aircraft to descend, the other to climb or maintain altitude can make these instructions only sequentially. In this scenario the controller's instructions would have prevented a collision.
If the TCAS system recognises this collision threat and if the second instruction was made not timely enough, TCAS issues an RA, which can be inverted to the controllers instructions.
Now, the controller cannot judge the sitiuation and actions of the aircraft under his control. He can only pray, that they solve the conflict on their own. Hardly a mental state I
want to be in.
