GPWS works at a height of
A.Below 2000 ft radio altitude B.Below 2000 ft corrected sea pressure altitude C.Below 2500 ft radio altitude D.Below 2500 ft corrected sea pressure altitude正确答案C
GPWS works at a height of
A.Below 2000 ft radio altitude B.Below 2000 ft corrected sea pressure altitude C.Below 2500 ft radio altitude D.Below 2500 ft corrected sea pressure altitude正确答案C