"Course and speed" are necessary, even vital, but not sufficient.
Two airline pilots fell asleep while cruising over Hawaii last February, flying past their destination toward open ocean for 18 minutes before waking up and returning for a safe landing, federal accident investigators revealed Tuesday.
Two airline pilots fell asleep while cruising over Hawaii last February, flying past their destination toward open ocean for 18 minutes before waking up and returning for a safe landing, federal accident investigators revealed Tuesday.
Ref: http://abcnews.go.com/Travel/story?id=5042619
A packed passenger jet heading to the UK was left flying on autopilot when both pilots fell asleep at the controls, it emerged last night.
Ref: http://www.dailymail.co.uk/news/article-2432847/Both-pilots-...