Type Alias AirspaceType

The type or class designation of an airspace feature.

CLASS_B, CLASS_C, CLASS_D, and CLASS_E variants are controlled airspace. Class E subtypes follow FAA NASR LOCAL_TYPE designations:

• CLASS_E2: Surface area (SFC floor) around airports without an operating control tower
• CLASS_E3: Airspace extending to SFC for instrument approach procedures
• CLASS_E4: Transition area with a 1,200 ft AGL floor
• CLASS_E5: Surface area with a 700 ft AGL floor (most common)
• CLASS_E6: Transition area (miscellaneous)
• CLASS_E7: Federal airway extensions

All remaining values are Special Use Airspace (SUA) types.