Frontpage discussion https://news.ycombinator.com/item?id=42874301 https://news.ycombinator.com/item?id=42874301 The TCAS (Traffic Alert and Collision Avoidanc

Frontpage discussion https://news.ycombinator.com/item?id=42874301 https://news.ycombinator.com/item?id=42874301 The TCAS (Traffic Alert and Collision Avoidance System) is apparently not useful when many aircraft are close together. Plus it was night. If I understand correctly the tower noticed the crossing paths and warned both aircraft, both confirmed. https://www.reddit.com/r/aviation/comments/1idba8i/comment/m9yfvz6/ https://www.reddit.com/r/aviation/comments/1idba8i/comment/m...