An A310 aeroplane weighing 100 tons is turning at FL 350 at constant altitude with a bank of 50 degrees. Its flight Mach range between low-speed buffering and high-speed buffering goes from:
M = 0.72 to M higher than 0.84
M = 0.65 to M higher than 0.84
M = 0.74 to M = 0.84
M = 0.69 to M higher than. 0.84