- Luiz If the intruder had TCAS, yes. The two systems would coordinate and agree on actions for each aircraft.

But if the intruder didn't have TCAS wouldn't you have just collided?

@@RachaelHepworth If the intruder didn't have TCAS then the system wouldn't activate at all, so unless they saw each other in time or were otherwise informed of the impending collision, then yeah the collision would happen. Both aircraft have to have TCAS activated. Look up the Gol Transportes Aéreos Flight 1907 crash for an example of both planes having TCAS but one of them accidentally having it deactivated. Neither plane got any TCAS warnings before the collision.

if the offending plane is russian, it asks for a wodka

TCAS will only sound alternating resolution advisories if both aircraft are equipped with mode S transponders, if one aircraft has mode S and another aircraft a different type of transponder, the aircraft with mode S will still sound a “Traffic, Traffic” advisory but no RA will occur as the aircrafts transponders have no way to communicate with each other

If both aircraft are perfectly level, a 500 feet vertical separation would probably generate a "Traffic, Traffic" Advisory (TA) then possibly a "monitor vertical speed" caution that warns the pilot not to change altitude toward the oncoming traffic. The symbol changing to yellow coincides with the Traffic Advisory (TA). When the symbol turns red, the pilot will receive a Resolution Advisory (RA).

Ok, thank you very much for the explanation sir!

AeroSavvy, I was under the impression that by regulations a 1000 feet vertical separation is the minimum to only generate a TCAS TA. At 500 feet vertical separation I would expect a TCAS RA. Curious to know if I got it wrong perhaps.

All pilots operating TCAS equipment have been trained to ignore anything ATC says after a TCAS Resolution Advisory is triggered. We follow TCAS guidance. After the crew receives “clear of conflict” from the system, we notify ATC so we can follow their instructions.

when you're on the ground, technically. either dead or alive

Handled properly, you shouldn't know.

You likely won't know, and you don't need to know. There's nothing you can do in an RA event as a passenger that would be useful.

TCAS can handle "multiple threats." I found one reference that stated up to 7 aircraft have been tested.

TCAS cas handle up to 30 way collision.

@@sanantonio855 wow ! I didn't know !

lmao imagine having 30 planes coming towards you, fucking horrific lol

Authentic simulated background cockpit noise. 😉

Isn't that like the APU sound inside the cabin?

Nighthawk Aviation Something like that. It's stock "aircraft interior" noise. :)

@@concordeaviation3051 If you can hear the APU running from the cockpit you have really good ears!

@Aviskyer Generally you are correct. There are times when the APU is operated the entire flight. On the 737 there are 3 generators (one on each engine and the APU) to legally dispatch the aircraft you need two. So if the #1 generator failed and maintenance deferred the aircraft would operate the APU the entire flight. The sound you hear in the background in the cockpit is (amongst other things)the airflow from the PACKS.

TCAS is used on most (if not all) transport aircraft worldwide. There are several different TCAS displays available. All provide essentially the same information.

@@Aerosavvy I mean TCAS with this voice

@@ymodnar Different TCAS manufacturers use different voices. The voices are not aircraft specific. It might help if you read the article where this video came from: aerosavvy.com/tcas/

It shows how fast you go up or down, to avoid a collision, the crew is instructed by the instrument to rise about 2000ft in pitch