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CLASSDAIRSPACE
MapDepiction. The lateral limitsof ClassD control area steps aredepictedwith
blue lines and ablue tint. The vertical limitsof ClassD are shownwithblue
labels. The control zoneshavedefineddimensions, and associated control area
steps,with anupper limit of 4500 ft.
RadioRequirements. Pilotsmustmaintain two-way communicationswith the
relevant ATC control towerwhenever operating inClassD airspace.
Control AreaProtection. Apilot, desiring to retain a vertical bufferwith aircraft
inClassG airspace (control areaprotection) during climbor descent inClassC
or ClassD airspace, shouldmaintain at least 500 ft above the lower limit of the
CTA steps.
3 – CLASS D A I RSPACE
general
500 ft
500 ft
500 ft
CONTROLAREAPROTECTION
OperatingRequirements for Transponders.
Pilotsof aircraft fittedwith a
serviceableMode3A transpondermust have the transponder onCode3000
or any assigneddiscrete code at all timesduringflight inClassD airspace.
If the transponder isMode3C capable, thatmodemust alsobeoperated
continuously.
Traffic Information inControlledAirspace.
In controlled airspace,when
a separation standarddoesnot exist, ATCwill provide traffic information to
the aircraft concernedwhen, in theopinionof theAir TrafficController, the
information iswarrantedby theproximityof the aircraft.
The traffic informationprovidedwill contain asmuch information as is known
and isnecessary to assist thepilot in identifying theother aircraft, for example: