What is the ceiling of class E airspace?
Up to but not including 18,000 MSL
Do you need clearance to enter class E airspace?
No. Clearance is not needed to enter class E airspace.
What does a blue vignette line signify on a sectional chart?
Class E airspace with a floor of 1200’ AGL
What’s does a magenta vignette line signify on a sectional chart?
Class E airspace with a floor of 700’ AGL
What’s does a magenta segmented line signify on a sectional chart?
Class E airspace with a floor at the surface (SFC)