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gptkbp:instanceOf
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gptkb:airspace_classification
|
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gptkbp:ATCServiceProvided
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separation for IFR traffic
sequencing for VFR traffic
traffic advisories
|
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gptkbp:compatibleWith
|
Mode C transponder (unless above 10,000 feet or within Mode C veil)
|
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gptkbp:definedIn
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gptkb:Federal_Aviation_Administration
gptkb:International_Civil_Aviation_Organization
|
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gptkbp:existsIn
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gptkb:United_States
other ICAO member countries
|
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gptkbp:horizontalRadius
|
typically 4 nautical miles
|
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gptkbp:lowerAward
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gptkb:Class_A,_B,_and_C_airspace
|
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gptkbp:mayRevertTo
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Class E or G airspace when tower is closed
|
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gptkbp:rank
|
gptkb:Class_G_airspace
|
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gptkbp:requires
|
ATC clearance for special VFR operations
establishing two-way communication before entry
two-way radio communication
|
|
gptkbp:surroundedBy
|
airports with operational control towers
|
|
gptkbp:symbolOnChart
|
dashed blue line
|
|
gptkbp:usedIn
|
aviation
|
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gptkbp:verticalLimit
|
surface to 2,500 feet above airport elevation
|
|
gptkbp:bfsParent
|
gptkb:National_Airspace_System
|
|
gptkbp:bfsLayer
|
5
|
|
https://www.w3.org/2000/01/rdf-schema#label
|
Class D airspace
|