McDonnell Douglas (MDC) has successfully demonstrated a series of simulated engine-out tests on an MD-11 for China Southwest Airlines at Lhasa, in Tibet, which is 11,600ft (3,540m ) above sea level. The demonstration began with a high-altitude test in the cruise at 35,400ft when the number three engine was throttled back to flight idle. The second test involved throttling back one engine on take-off. The final test demonstrated that the aircraft could be made to climb en route to Chengdu with an engine failure and cruise at the minimum en route altitude of 26,200ft.
Source: Flight International
