To approach on the same runway, the preceding heavy aircraft should maintain at least a _______-minute non-radar wake separation from the light aircraft behind.
A.4
B.3
C.2
D.1
正确答案是B
To approach on the same runway, the preceding heavy aircraft should maintain at least a _______-minute non-radar wake separation from the light aircraft behind.
A.4
B.3
C.2
D.1
正确答案是B