Questions tagged [ils]

An instrument landing system (ILS) is a ground-based instrument approach system that provides precision guidance to an aircraft approaching and landing on a runway.

6 questions with no upvoted or accepted answers
Filter by
Sorted by
Tagged with
3
votes
0answers
143 views

Diversions because of fog: What are the reasons?

It's fog season again around my local airport MUC (EDDM), and I have noticed a number of diversions recently. Some planes were holding a bit before attempting to land, performed a go around and then ...
2
votes
0answers
93 views

Why is the ILS 36R approach at ZBAA over twice as long as a standard ILS approach?

I fly exclusively in a consumer flight simulator, so excuse me if there's an obvious answer to this. ILS approach plates typically show a long, arrow-like symbol to indicate the part of an approach ...
1
vote
0answers
98 views

Is it necessary to switch from VFR to IFR when using ILS approach?

I have flown at an airport and asked for vectors for an ILS approach in VMC for practice. But the controller refused to give me vectors and told me that I could only have a visual approach. I got the ...
1
vote
0answers
81 views

Is there any latest List of CAT IIIB airports in the world?

Recently I had my very first CATIIIB experience at my own homebase (VILK) and since then I've been keen to know more about this most advanced landing system we have in the aviation as of now and given ...
1
vote
0answers
78 views

How big does an object in one of the ILS critical areas have to be to cause a problem?

ILS installations have a critical area extending some distance back from the glideslope antenna (primarily due to most glideslope transmitters’ needing to bounce one of their two beams off the ground ...
1
vote
0answers
52 views

What is the difference in purpose of the 1:40 Obstacle Identification Surface and the 1:50 clearance plane for an ILS glideslope?

I have found references to the Obstacle Identification Surface (OIS), which is approximately a 152ft/NM slope from the end of the runway (1.43 degrees, 1:40 rise/run) and a 1:50 clearance plane noted ...