Airspaces

The ICAO / EASA framework provides 7 airspaces definition common throughout ICAO / EASA countries.

You may find here a definition of all airspaces and the services provided in each one of them

IMPORTANT TO KNOW for Switzerland

  • G Airspace is a layer of 2000ft AGL
  • C Airspace starts at FL100 in the mainland and FL 130 in the alpine region
  • Military ON, then the C Airspace starts at FL150
  • Military OFF, then  the C Airspace starts at FL130

(1) : General speed limit is 250kts IAS enforced below FL100 (10’000ft)

(2) : Separation as far as practical

(3) : Service to participating IFR traffic only (non participating IFR to file FP and maintain 2-way comms)

(4) : Radar information / advice may be provided to augment FIS in CAS

(5) : Not used in Switzerland

Schematic Overview of the different airspaces

Source: DFS

Class Rules Service Clearance Separation FIS Speed Limit (1) Radio Watch CTR SVFR
A IFR only ATC YES ALL NO YES YES
B IFR ATC YES ALL NO YES YES
VFR
C IFR ATC YES IFR – IFR NO YES YES
IFR – VFR
VFR ATC VFR – IFR YES
FIS VFR – VFR
D IFR ATC YES IFR – IFR YES YES YES
FIS (4) IFR – VFR
VFR VFR – IFR
VFR – VFR
E IFR ATC YES IFR – IFR YES YES NO (2)
FIS IFR – VFR
VFR NO VFR – IFR NO
VFR – VFR
F IFR ADV ATC NO IFR – IFR (3) ALL YES YES NO
IFR FIS YES
VFR NO
G IFR FIS NO NONE ALL YES YES NO