Statements (18)
| Predicate | Object |
|---|---|
| gptkbp:instanceOf |
airspace classification
|
| gptkbp:abbreviation |
gptkb:CTR
|
| gptkbp:appliesTo |
controlled aerodromes
|
| gptkbp:definedIn |
gptkb:International_Civil_Aviation_Organization_(ICAO)
|
| gptkbp:enforcedBy |
air traffic control
|
| https://www.w3.org/2000/01/rdf-schema#label |
Control Zone (CTR)
|
| gptkbp:location |
surrounds an airport
|
| gptkbp:purpose |
protect arriving and departing aircraft
|
| gptkbp:regulates |
VFR and IFR flights
|
| gptkbp:relatedTo |
gptkb:Control_Area_(CTA)
gptkb:Terminal_Control_Area_(TMA) |
| gptkbp:requires |
radio communication
air traffic control clearance |
| gptkbp:shape |
usually cylindrical or polygonal
|
| gptkbp:usedIn |
civil aviation
|
| gptkbp:verticalLimits |
from surface to specified upper limit
|
| gptkbp:bfsParent |
gptkb:Class_C_airspace
|
| gptkbp:bfsLayer |
6
|