PROFICIENCY & EFFICIENCY 116 TECHNIQUE 120 FRUGAL FLIER 122 WX WATCH 126 AVIONICS 132 NEVER AGAIN CONTROLLED AIRSPACE Airspace of defined dimensions within which air traffic control service is provided. Class A: 18,000 feet msl up to and including FL 600. Class B: Generally, surface up to 10,000 feet msl. Class C: Surface to 4,000 feet above the airport elevation. Class D: Surface to 2,500 feet above the airport elevation. Class E: All other controlled airspace. | PROFICIENCY | Bulk up B Y J I L L W. TA L L M A N 112 | AOPA PILOT August 2014 BARRY DOWNARD Flying to an airport in Class B