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Old 6th Jun 2021, 06:04
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KingAir1978
 
Join Date: Feb 2002
Location: US
Posts: 94
Those limitations are typical on many types.

I would recommend that you download a copy of ICAO DOC 8168. Typically the limit for an ILS glidepath is 3.5, above this it is considered a steep glide path angle and it is recommended (from a procedure design point of view) to use this steeper glide path only for obstacle clearance. There are a lot of considerations when flying a steeper angle. I.e. extra margin in case of go around, engine spool-up time etc. Airbus has published some 'getting to grips with...' documents. Getting to grips with CAT2 CAT3 has a lot of useful information about aircraft certification, but it is a bit dated. Hope this helps.
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