The Amazing World Of Aviation Season 1 Episode 11 Long Haul Aircraft
- TV-NR
- January 1, 2013
- 52 min
Traditionally, regulators had insisted that all passenger aircraft be powered by at least three engines. But the development of more sophisticated airplanes eventually made twin-engine, long-distance travel feasible. A new standard was introduced, known as Extended-range Twin-engine Operational Performance Standards, or ETOPS.