In article ,
Ed Rasimus wrote:

TCAS would be impractical in terms of continual warnings
and (heaven forbid) uncommanded fly-up/fly-down commands.

TCAS does NOT control the aircraft - there are no connections
to the autopilot. All RAs are visual cues and aural cues. All
collison aviodance is performed by the flying pilot.

--
Bob Noel
Looking for a sig the
lawyers will hate