Airspace Classes Indicated Airspeed Knot 
Flight Training Central
NOVEMBER 4, 2024
Class B Basics Class B Airspace Dimensions Minimum Pilot Certification for Class B Airspace Minimum Equipment for Class B Airspace Class B Speed Limitations Getting Around and Through Class B Airspace Class B Basics Yes, it is true that Class B airspace surrounds some of the busiest airports.
Pilot Institute
SEPTEMBER 26, 2024
ATC offers IFR and VFR aircraft separation services in Class C. Class C airports’ speed limits require aircraft within 4 Nautical Miles (NM) of the primary airport and below 2500 feet to maintain an Indicated Airspeed (IAS) of 200 knots or less. Only enter Class C after receiving authorization from ATC.
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