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Air Law

Airspace G is uncontrolled, meaning there is no air traffic control service. In FIZ,

which is G airspace, 2-way radio communication with the AFIS service unit is
required.

Airspace E is controlled airspace, where air traffic control service is provided

for IFR traffic.

Airspace C and D are found in TMA’s. All control zones in Denmark is D airspace.

Clearance and two-way radio communication are required to fly in D and C

airspace.

In C airspace, a transponder mode C is required.

In airspace C and D, air traffic control service, flight information service, and

alerting services are provided.

Remember, in airspace G, below the highest of 3000 feet MSL or 1000 feet

AGL, you must have ground visibility.

In other airspace, if you and the aircraft meet the requirements, you can fly VFR

without ground visibility.

In tabular form, it looks like this:

Airspace Class B C D E F / G

I or below the
Above the highest of
3000 ft MSL or 1000 ft highest of 3000 ft

above terrain MSL or 1000 ft above
terrain

Clear of clouds and
Distance from Clear of 1500 m horizontally,
with GROUND
clouds clouds 1000 feet vertically
VISIBILITY

8 km in or above FL 100 5 km
Flight visibility
5 km below FL 100 3 km at IAS < 140 kt*

Note: Above FL 95, there are RMZs (Radio Mandatory Zones) in E and G airspace with a
requirement for two-way radio communication.

Flight Theory PPL(A)(UL)/LAPL Henning Andersen, Midtjysk Flyveskole© 2025 57