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moey124

what is the difference between ILS Z & Y?

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i was doing a apprroach into YSSY.. and it told em to land at 30L and i clicked ILS Z.. but when i clicked the approach switch it ddidnt have glideslope... so i am wondering if it has to do with ILS z & Y.. cause i was at the right altidude etc... can someone explain to me what is the differenc ebetween ILS Z OR Y ? thanks


Mohit Mahtani

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Found this:

 

"8.5.1.3.2 The single letter suffix shall be used as follows: 

a) when two or more navigation aids of the same type are used to support different approaches to the same runway; 

b) when two or more missed approaches are associated with a common approach, each approach shall be identified by a single letter suffix; 

c) if different approach procedures using the same radio navigation type are provided for different aircraft categories; and 

d) if two or more arrivals are used to a common approach and are published on different charts, each approach shall be identified by a single letter suffix. If additional radio navigation aids are required for the arrival, they 
shall be specified on the chart’s plan view. For example: 

ILS Z RWY 20 (“DNA VOR Arrival” shown in the plan view) 
ILS Y RWY 20 (“CAB VOR Arrival” shown in the plan view)"

 

 

 

I'm sure some others here can elaborate further.


Dave Wegner

 

- Don't be afraid of common sense or the search function.

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You hit it on the head.

 

Two ILS approchaes to the same runway, but with differences.

 

Why Z, X, etc..? To help prevent confusion with SID/STAR that are ABC1A, etc..

 

Best regards,

Robin.

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I don't have your charts with me, but have a look at the missed approach procedure.

It could be different depending on what letter (Y/Z) you will have to fly


<p>Francesco

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Look closely at the plates at "NAVAID RQ":

 

the 34L ILS-Z requires the ISN DME

the 34L ILS-Y requires the SY DME

 

(top right hand corner of the plate)


David Porrett

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Can I ignore this?  I only ever have one missed approach: nose first into the nearest piece of tarmac.


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Can I ignore this?  I only ever have one missed approach: nose first into the nearest piece of tarmac.

 

If you fly offline you can do what ever you want. Flying online however is a different story....


Regards,
Chris Volle

i7700k @ 4,7, 32gb ram, Win10, MSI GTX1070.

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