Which class is high level airspace above the lower boundary of Class E, with IFR and VFR permitted and possible transponder requirements?

Which class is high level airspace above the lower boundary of Class E, with IFR and VFR permitted and possible transponder requirements?

• A. Class F
• B. Class E
• C. Class B
• D. Class D

Answer: (B)

Class E is controlled airspace that allows both IFR and VFR operations and can have various lower boundaries. The airspace above the floor of Class E remains controlled and is designated to provide ATC services for instrument flight rules traffic as well as permitting visual flight rules traffic. In many regions, parts of Class E require a functioning transponder (for ATC surveillance and separation) depending on the area. Because the description emphasizes high‑level airspace that permits both IFR and VFR and may have transponder requirements, it matches Class E.

Class E is controlled airspace that allows both IFR and VFR operations and can have various lower boundaries. The airspace above the floor of Class E remains controlled and is designated to provide ATC services for instrument flight rules traffic as well as permitting visual flight rules traffic. In many regions, parts of Class E require a functioning transponder (for ATC surveillance and separation) depending on the area. Because the description emphasizes high‑level airspace that permits both IFR and VFR and may have transponder requirements, it matches Class E.