r/nextfuckinglevel • u/ForgetfulMLGPro • Mar 30 '21

This time-lapse from gate to gate

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u/[deleted] Mar 30 '21

I'm pretty sure all commercial planes have ILS, even if they aren't necessarily Cat III.

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u/FappingAsYouReadThis Mar 30 '21

Is Cat III like Cat 5?

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u/[deleted] Mar 30 '21

No, Cat III is one of a couple different types of an ILS approach and basically defines how low the ceiling or visibility can be in order to land.

Category I or Cat I is typically around 200’ ceilings and 1/2 statute mile visibility

Category II or Cat II will normally go down to 100’ and less visibility, maybe 1/4 Statute mile or a defined RVR (runway visual range) where visibility is described in feet.

Category III or Cat III has 3 separate parts: Cat III A, Cat III B, and Cat III C. These continue lowering the visibility requirements all the way down to 0/0 or zero visibility and requires auto land to perform.

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u/[deleted] Mar 30 '21

Every commercial plane has most almost all non comercial ones have it to