jnmeade
Cleared for Takeoff
I'm trying to wrap my mind around how ARTCC sectors are divided up by altitude. Here's what I think I have figured out. Please correct, comment or amplify as appropriate:
1. Low altitude sector - FL230 and below, but sometimes (like around class B?) 10,000 and below
2. Intermediate sector - 11,000 through FL230 (probably used over a Class B?)
3. High sector - FL 240 and above, but sometimes FL 240 to FL330.
4. Ultra high - FL 350 and above where used
I suspect the above information is dated, for example, it doesn't look like it accounts for RVSM separations.
I don't have any good feel for why UH is separated out as if it goes from the ground up in one area, as opposed to being all airspace over FL330 or some other altitude.
References, web sites, etc. appreciated.
1. Low altitude sector - FL230 and below, but sometimes (like around class B?) 10,000 and below
2. Intermediate sector - 11,000 through FL230 (probably used over a Class B?)
3. High sector - FL 240 and above, but sometimes FL 240 to FL330.
4. Ultra high - FL 350 and above where used
I suspect the above information is dated, for example, it doesn't look like it accounts for RVSM separations.
I don't have any good feel for why UH is separated out as if it goes from the ground up in one area, as opposed to being all airspace over FL330 or some other altitude.
References, web sites, etc. appreciated.
Last edited: