If the airport navigation lights is not continuous supplied for use, tower controllers should opening light _____ minutes before aircraft expected to taking off or landing,or according to the required time of the tower control unit.
A: 10
B: 15
C: 20
D: 25
A: 10
B: 15
C: 20
D: 25
举一反三
- From the control tower, air traffic controllers coordinate aircraft movement both _____________ and on the ground.
- In the tower, there are many air traffic controllers helping take-off and landing of the _________. A:
- 4. From the control tower, air traffic controllers coordinate aircraft movement both ________ and on the ground. A: on the air B: in the air C: at the air D: of the air
- Pilots should contact _________ or their departure airport control tower if they need to change their departure time.
- satelliteautomatevaporin the air expansionhazardincorporate take control of lucrativemagneticget/be stuck inmountsignal bunchvibrateapproximatelycalculateapartcorrelate frequency From the control tower, air traffic controllers coordinate aircraft movement both ____ and on the ground.