Originally Posted by Senior Skipper

Slice,

Long time no see.

I've never used TCAS, but from what I'm told by those who do use it, it's pretty useful. I'm aware that it has it's disadvantages; some have been mentioned here. If most or all airliners already have it, why not use that same technology instead of re-inventing the wheel?

Thanks for that tidbit on the ADS-B. I'll go do some homework on the pros and cons of ADS-B / TIS and see if that is a better idea, but I think that people would just as quickly oppose mandatory ADS-B / TIS.