What is always the ceiling of Class E airspace?
-17,999 feet MSL
-17,999 feet AGL
-1,200 feet AGL
17,999 feet MSL
How high does Class G’s ceiling generally (not “all” the time considering there are rare cases in remote areas where the 14,500’ Class G ceiling exists…but for the most part this type of Class G has gone extinct) extend up to over the vast majority of the US?
-Up to but not including 1,200 MSL
-Up to but not including 1,200 AGL
-Up to but not including 17,999’ MSL
Up to but not including 1,200 AGL
Why are Class B, C, & D’s shelf heights always measured in reference to MSL?
-For uniformity purposes. It makes Air Traffic Controller’s lives easier when telling manned aircraft what to do. Especially knowing they are all flying at altitudes in reference to the same point (the mean sea level of the entire earth which is a constant).
-Because the FAA likes to make things as confusing as possible.
-Because they’re uncontrolled airspace.
For uniformity purposes. It makes Air Traffic Controller’s lives easier when telling manned aircraft what to do. Especially knowing they are all flying at altitudes in reference to the same point (the mean sea level of the entire earth which is a constant).
