Originally Posted by DenisG;#866
a CAS higher than 530 kt without the Mach value exceeding 1. This condition implies that the aircraft was at an altitude comprised between about 4,000 and 14,000 ft;
DenisG;
At 14000 ft, 530 kt CAS, the Mach number is 1. Therefore the condition 'CAS higher than 530 kt without the Mach value exceeding 1' can only be true below 14000 ft (fundamental physics). I do not understand the addition of 'above 4000 ft.'
HN39