ILS Categories. Do I have the right idea?
So this is what I understand so far.
If the visibility is 550 meters atleast / 1800ft, you are allowed to do a CAT 1 approach, where the minimum DH is at least 200 feet AGL.
Less than 550 M but not less than 350 M (1200) you are in for a cat 11 approach where a DH of atleast 100 feet.
Then come category 111
a: RVR 200 meters / 700 ft, and DH of atleast 100 ft.
b: RVR atleast 50 meters (150 ft), and DH atleast 50 ft.
c: auto land
Not just the numbers, but do I have the idea right?
What exactly is different with the different ILS categories except for the decision height? Speeds, etc. all remain the same?
Do you find the DH if you're doing CAT11, or CAT111 on the approach plate itself?
Is it ever possible that your RVR corresponds to a certain category, but your DH is too low for that ILS category?
Thanks guys!