An aircraft maintains an indicated altitude of 6,500 ft from A (elevation 600 ft AMSL, QNH 1012 hPa) to B (elevation 930 ft AMSL, QNH 977 hPa), with its altimeter setting unchanged at 1012 hPa. Assuming an approximately ISA air column and using 30 ft per hPa for this exercise, what is its estimated height above the surface at B? - ATPL Question Bank In English