So I had two questions on transion calls while being ATC. Was hoping some fellows herd could break down that wall between me and the answers.
When an Aircraft is calling in for a transition, do you clear them for 3,000 feet or 5,000 feet transition? I’ve heard it several times from people either way and I wanted to make sure I’m doing it right.
When clearing someone for a transition (we’ll use 3,000 feet as an example even if it’s incorrect) do you clear them for an AGL transition of 3,000 feet or MSL?
For example at KLAX a transition of 3,000 feet would be the AGL level while say in Denver the transition would be about 8000 feet. So do I transition for AGL or do I give them the altitude they”d need to be at in order to clear the airport?
@Infinite.flight MaxSez: IF Airfield ceilings are established. There located in the airport data blocks. Transition heights are routine stated at reasonable levels above the established ceiling, there are no standards. (See the Pilots Handbook, AIM or FAR) Google is your friend. Regards
No standards but I would clear them for the AGL ceiling? So in Denver I’d clear a transition of 8,000 feet while in LAX I’d clear a transition of 3,000 feet?
Welp thanks for the information, sir. Just slightly confusing on AGL v MSL lol and I’d have requested googl’s services if I knew how to find what I was looking for. It’s hard typing in “Transition altitudes at airports” and find a definite answer. But I do appreciate the “check google”…I think.
If it’s MSL then that means clearing someone in Denver for a transition of 3,000 feet would be like ordering them to die and sending their plane into the ground? Got it. I’ll make sure not to do that lol
I thought pattern levels were 3,000 - 2,500 feet AGL. So wouldn’t transition then be 4,000 feet?
Thank you very much. I’ll try to remember the 1k rule. Does that meant if LAX is at sea level pattern work is between 1,000 to 1,500 feet so transition would then be 3,000 feet? If so I think I’m beginning to fully grasp how to handle pattern work.
MaxSez: FYI… AIM 3-2-4 (a) Generally, that airspace from the surface to 4,000 feet above the airport elevation (charted in MSL)
If you look at chart for the Class C for Colorado Springs (elevation 6,187), the surface area of the airspace goes up to 10,200 ft MSL, approximately 4,000ft above the airport elevation of 6187.
The plus 5000 feet above MSL for IF Transition from my research appears valid.
We can’t bring AIMs and other real world stuff into this- it just muddies the waters and ends up confusing people. The 5/5 rule continues to be in effect and will stick for the foreseeable future. We need to maintain an easy point of consistency.
@JoshFly8. MaxSez: “The plus 5000 feet above MSL for IF Transition from my research appears valid.” Seems we have no conflict here Josh.
Appears 5000’ According to the AIM conforms to the IF 5/5 rule. Our opinions conform as well. Just interpretation… Regards