I know ILS CAT is classified by DH, and RVR, but I want to know what's difference between ILS CAT operationally.

For example, CAT 3 approach should be autolanding. (I am not sure)

And, if RVR is 600m which is CAT 1 RVR, Do pilot can make CAT 2 approach or should pilot make CAT 1 approach?



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