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Classes of United States Airspace

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jeyezuxu's version from 2016-06-07 18:05

Class A Airspace

Question Answer
Floor of Class A Airspace18,000' MSL
Ceiling of Class A AirspaceFlight Level 600 (60,000 feet MSL)
Class A VFR minimumsNone: no VFR allowed, positive ATC control required
Class A airspeed limitNone
Class A Airspace Minimum Pilot QualificationsInstrument Rating
Class A Airspace Required EquipmentIFR equipped aircraft
Class A Airspace Entry requirementATC Clearance
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Class B Airspace

Question Answer
Floor of Class B AirspaceCustom, surface layer at the core, then tailored
Ceiling of Class B AirspaceCustom, typically 10,000' MSL
Class B VFR minimums3 statute miles visibility, clear of clouds
Class B airspeed limit250 kts, unless in a VFR corridor or into an airport, then 200 kts
Class B Minimum Pilot QualificationsPrivate pilot, or student with endorsements for that class B
Class B Required EquipmentMode C or Mode S Transponder, two-way radio
Class B Airspace Entry RequirementPositive ATC Clearance
Describe the Mode C VeilAn ring 30 nm around the airport, within which the aircraft must have an altitude encoding transponder
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Class C Airspace

Question Answer
Floor of Class C AirspaceCustom, but typically surface at core, 1,200' at the outer ring
Ceiling of Class C AirspaceCustom, typically 4,000' AGL
Dimensions of Class C AirspaceCustom, but typically an inner core (5nm) and an outer ring (10nm)
Class C VFR minimums3 statute miles visibility, 1,000' above, 500' below and 2,000' horizontal from clouds
Class C airspeed limit200 kts
Class C Minimum Pilot QualificationsTechnically none, but in practice student
Class C Required EquipmentMode C or Mode S Transponder, two-way radio
Class C Airspace Entry RequirementEstablish radio contact with tower, readback of tail number is sufficient
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Class D Airspace

Question Answer
Floor of Class D AirspaceCustom, but typically surface level
Ceiling of Class D AirspaceCustom, typically 2,500 AGL
Dimensions of Class D AirspaceCustom, but typically 5 sm radius
Class D VFR minimums3 statute miles visibility, 1,000' above, 500' below and 2,000' horizontal from clouds
Class D airspeed limit200 kts below 2,500' AGL or within 4nm of the airport
Class D Minimum Pilot QualificationsTechnically none, but in practice student
Class D Required Equipmenttwo-way radio
Class D Airspace Entry RequirementEstablish radio contact with tower, readback of tail number is sufficient
Describe what happens if the tower in Class D is unmannedAirspace reverts to Class E or G, depending on availability of automated weather
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Class E Airspace

Question Answer
Floor of Class E AirspaceMost of the US, 700 or 1,200' AGL, unless otherwise marked, between 14,500 MSL and 18,000 MSL, andabove FL600
Ceiling of Class E Airspace17,999 MSL (just below Class A), or wherever capped by another airspace
Dimensions of Class E Airspacemostly everywhere another airspace isn't
Class E VFR minimums3 statute miles below 10,000 MSL, 5 sm above 10,000 MSL, 1,000' above, 500' below and 2,000' horizontal from clouds
Class E airspeed limitnone above 10,000 MSL, 250 kts below 10,000 MSL, or within 4 nm of a Class C or D airspace
Class E Minimum Pilot QualificationsTechnically none, but in practice student
Class E Required Equipmentnone
Class E Airspace Entry Requirementnone
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Class G Airspace

Question Answer
Floor of Class G Airspacesurface level
Ceiling of Class G Airspace14,500 MSL, or wherever capped by another airspace
Dimensions of Class G Airspaceeverywhere another airspace isn't
Class G VFR minimums, < 1,200 MSL, day1 statute miles visibility, clear of clouds
Class G VFR minimums, < 1,200 MSL, night3 statue miles visibility, 1,000' above, 500' below and 2,000' horizontal from clouds
Class G VFR minimums, > 1,200 MSL, <10,000 MSL, day1 statute miles visibility, 1,000' above, 500' below and 2,000' horizontal from clouds
Class G VFR minimums, > 1,200 MSL, <10,000 MSL, night3 statute miles visibility, 1,000' above, 500' below and 2,000' horizontal from clouds
Class G VFR minimums, >10,000 MSL, day5 statute miles visibility, 1,000' above, 1,000' below and 1 statue mile horizontal from clouds
Class G airspeed limitnone above 10,000 MSL, 250 kts below 10,000 MSL, 200 kts below2,500 MSL or within 4 nm of a Class C or D airspace
Class G Minimum Pilot QualificationsTechnically none, but in practice student
Class G Required Equipmentnone
Class G Airspace Entry Requirementnone
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