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TCAS procedure (Read 800 times)
Nov 8th, 2010 at 10:17pm

snippyfsxer   Offline
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Whenever I'm flying a TCAS equipped plane in Flight Sim, and it lights up, my normal procedure is to switch to outside view and see how close the other traffic came, hopefully catching a flyby of a rare livery  Smiley Smiley

In the real world, I don't suppose this is standard doctrine however.  When it starts blurting out "Traffic, Traffic", do you do nothing but perk up, until it gives you a command such as "Descend, Descend now", and only then take action?  How should one handle this, realistically?
 
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Reply #1 - Nov 8th, 2010 at 10:39pm

-Crossfire-   Offline
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In the IFR world, ATC should keep you well clear of traffic, so TCAS alerts are rare.... i think... but mistakes do happen.  The plane I fly doesn't have TCAS, so I'm not 100% on its operation.

I do believe if you get conflicting instruction from your TCAS and from ATC, ie. TCAS tells you to decend and ATC tells you to climb, that you should do what the TCAS tells you.

A little insight here...
http://en.wikipedia.org/wiki/Bashkirian_Airlines_Flight_2937
 

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Reply #2 - Nov 8th, 2010 at 10:40pm

DaveSims   Offline
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If the TCAS gives you avoidance directions, you take evasive action and do what it says.  If it is close enough to cause a collision warning, you don't have time to look for the other aircraft, you just follow the directions.
 
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Reply #3 - Nov 9th, 2010 at 11:29am

machineman9   Offline
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Immelmann  Tongue
 

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Reply #4 - Nov 9th, 2010 at 11:41am

olderndirt   Offline
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The classic '360' and get the h#ll out of there.
 

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Reply #5 - Nov 9th, 2010 at 12:27pm

C   Offline
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snippyfsxer wrote on Nov 8th, 2010 at 10:17pm:
In the real world, I don't suppose this is standard doctrine however.  When it starts blurting out "Traffic, Traffic", do you do nothing but perk up, until it gives you a command such as "Descend, Descend now", and only then take action?  How should one handle this, realistically?


Of the several RAs I've had in the real world, when it blurts out "traffic traffic", you just get ready for the "climb/descend" command - there's so little time between them. There are some situations where you can visually pick up the conflicting traffic, and if VFR then apply your own lateral deconfliction, but certainly in IFR you just wait and see what it gives you - which is always safest.

Coincidentally, there was a recent incident involving a military King Air and an E3. Th King Air pilot was visual with the E3 so chose to contradict a TCAS climb, and descended. The E3, following TCAS then had a fairly hefty reversal as his TCAS descent turned into a climb.
 
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Reply #6 - Nov 9th, 2010 at 5:22pm

machineman9   Offline
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olderndirt wrote on Nov 9th, 2010 at 11:41am:
The classic '360' and get the h#ll out of there.

360 would put you back in the exact same direction  Grin
 

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Reply #7 - Nov 11th, 2010 at 5:02am

patchz   Offline
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machineman9 wrote on Nov 9th, 2010 at 11:29am:
Immelmann  Tongue

Best one word response I have seen in a while.  Grin Grin Grin
 

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Reply #8 - Nov 11th, 2010 at 8:42pm

olderndirt   Offline
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patchz wrote on Nov 11th, 2010 at 5:02am:
machineman9 wrote on Nov 9th, 2010 at 11:29am:
Immelmann  Tongue

Best one word response I have seen in a while.  Grin Grin Grin
A man for whom a German medal with a French name was nicknamed.
 

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