Airspace class F
General
There are currently no class F airspaces in Germany, and neither are there in the rest of the world. Airspace F is uncontrolled airspace.
The Standardised European Rules of the Air (SERA) also state that airspace F is only to be regarded as a temporary measure until it can be replaced by airspace of another class.
The following rules apply in airspace F.
Rules
- ADVS = Advisory Service
- ALRS = Alerting Service
VMC Minima
- Flight visibility above FL100: 8 km
- Flight visibility below FL100: 5 km
- Distance from clouds horizontal: 1500 m
- Distance from clouds vertical: 1000 ft
According to SERA 5001 the minima may be reduced at or below 3000ft AMSL or 1000ft above GND (whichever is higher):
- Flight visibility: 1500 m when aircraft are flying 140 kt IAS or slower and are in low traffic areas
- Flight visibility: 800m for helicopters when flying at a reasonable speed to avoid other traffic or obstacles
- Clear of clouds and ground in sight