Tenerife, the worst accident in aviation history; like all pilots, Captain Van Zanten‘s decision to go for the take-off was only one of the many thousands of decisions he had made in his career. Rain, snow or fog obscuring the view of the entire runway was not uncommon and something he had experienced many times. He was thinking about many things; the delays, his inconvenienced passengers, the schedule, and the flight legs facing him after dropping his passengers just 25 minutes away. Of course, he was 100% certain that the Pan Am aircraft was clear of the runway. As his aircraft was gaining speed, he was readying himself for the mental switch from visual to instruments as he would be climbing through the fog. The instant he saw the Pan Am aircraft looming into view directly ahead of him he knew, he knew right then and right there, he knew he was dead, he knew they were all dead……everything flashed through his mind… Institutionally, he pulled back on the yoke……but he knew…