The Civil Aviation Administration recently mandated that captains of flights from China’s top 10 airports to Beijing should have Class II ILS qualifications.
So what is a Type 2 ILS?
Is it true that the plane can’t land in foggy days?
What is an ILS?
Pilots use machines to land flights without the naked eye being able to see the runway.
The ILS, as we call it, relies on the Instrument Landing System (ILS).
The system can guide the aircraft to approach and land in low weather standards or when the pilot cannot see any visual reference.
Instrument landing system is the launch of the two beams of a radio signal from the ground and glide path guidance course, set up a virtual path points from the runway to the air, the plane through the airborne receiving equipment, determine their own and the relative position of the path, the plane along the right direction to fly through the air to the runway and smooth falling height, eventually landed safely.
Ils Class I: visibility is about 800m, cloud ratio is 60m (cloud ratio is the distance from the runway to the cloud above), determination altitude is 60m, if the pilot can see the runway at this altitude, he can land, if not, he can go around.
Type 2 ILS: VISIBILITY 400 METERS, cloud ratio 30 meters, determination altitude 30 meters, if the pilot can see the runway at this altitude can land, if not, go around.
Class III ILS: Class III Class A: visibility 200 m, cloud ratio 15 m;
Determination ALTITUDE 15 METERS, IF THE pilot can see the runway AT this altitude to land, if not, GO around.
Class B: visibility 50 m, cloud ratio 0 m;
No altitude determination, pilot will decide whether to land or not, if not, go around.
Class C: visibility and cloud ratio are 0 m.
