Oh yes sorry, I just meant that aircraft don't use the term takeoff anymore until it's been granted by ATC. A major cause of Tenerife was that the KLM captain

Oh yes sorry, I just meant that aircraft don't use the term takeoff anymore until it's been granted by ATC. A major cause of Tenerife was that the KLM captain was under the impression that clearance had been granted and the Pan-Am had left the active runway. And that his fellow crew who had been listening were afraid to speak up. A lot of improvements have resulted from that terrible accident. We reviewed it in flight class, they were always using accidents to explain why rules are so important.