Near miss with helicopter at South Hollywood beach, Florida.

[Fried Eagle]

TCAS is not terrain collision.

Its Traffic Collision and Avoidance System. Its nothing to do with terrain. Its everything to do with seeing other aircraft and working out the best way to miss them.

An ADS-B transponder would add 5-10g weight maybe. Its a single, simple SOC. But they arent going to want thousands of ADS-B devices taking up the time slice of real planes. So they'll find a lower range alternative at some point.

You are correct. In my mind I was typing Traffic and somewhere between my brain and my fingers it typed Terrain. I have smacked the crap out of my offending hand and it has promised not to do it again.