This week the A321XLR development flight-test aircraft (“FT3”, MSN11080) dedicated to the cabin returned from its four-day cold-weather ground testing at Iqaluit in northern Canada. A few weeks earlier, one of the other A321XLR test aircraft (“FT2”, MSN11058) made a similar visit to Iqaluit. On that initial occasion the mission was to test the operation of the hydraulics and other systems at extreme cold temperatures – after an overnight soak at minus 40 degrees Centigrade. (www.airbus.com) 更多...