-
發表於:2017-01-08
Britishairspacewasclosed.ThejetenteredChineseairspacewithoutpermission.We'renowenteringthedesignatedairspace.Buttheproblemoflimitedairspaceremains.AnaircraftintrudedChin...
-
發表於:2019-01-29
Thisclosed-endmanagementsystemisinaspecifichistoricalcircumstancesandtechnicalconditions,formedtodefenditsnationalairspace,toensureflightsafetyhasplayedanimportantrole.It...
-
發表於:2024-02-23
1、Alsoallowsyoutosailinacontrolledairspace.2、UncontrolledairspaceisdesignatedClassF,whilecontrolledairspacebelow5,490mabovesealevelandnotinthevicinityofanairportisClass...