at 1:26, the definition of ETOPS Area of Operation is correct but its associated diagram seems to be wrong to me "ETOPS 120mins area" is loosely shaded whilst ETOPS area of operations outer circle has to be well defined. ETOPS 120mins - Please draw and 120-min circle and shade it and call it as ETOPS Area of operation
tibchy144 Actually twin engine aircraft are significantly more powerful than 4 engine aircraft. In some cases on twin engine aircraft a single engine is as powerful as 3 engines on a 4 engine aircraft.
