Class D airspace
E256788
UNEXPLORED
Class D airspace is a category of controlled airspace surrounding smaller airports with an operational control tower, where pilots must establish two-way radio communication with air traffic control before entering.
Referenced by (3)
| Subject (surface form when different) | Predicate |
|---|---|
|
Class B airspace
→
Class C airspace → |
isMoreRestrictiveThan |
|
Class A airspace
→
|
relatedConcept |