We have a simplified version of TCAS on our helicopters that gives an audio and visual warning. It’s not massively accurate, but it does tell you that there is ‘something there’. A recent airprox released near Lancaster, shows the true value of such a system. It doesn’t guarantee deconfliction, but it adds to situational awareness and doesn’t require a lot of heads in
People, it’s a no brainer. ANYTHING like this that adds awareness is good value