Classes of Airspace
In Germany controlled airspace of Airspaces classes "C", "D" and "E", as well as uncontrolled airspace class "G", have been established.
These airspaces may be active continuously (H24) or occasionally (HX).
Mit freundlicher Genehmigung der DFS Deutsche Flugsicherung GmbH
On VFR flights up to an altitude of 5000 ft MSL or up to a height of 2000 ft AGL - if this level exceeds 5000 MSL - the altimeter shall be set to the QNH of the aerodrome with an ATC unitd nearest to the route of flight.
On VFR flights above these levels the altimeter shall be set to 1013.2 hPa (standard altimeter setting).
Semi-Circular Cruising Levels
On VFR flights with standard altimeter setting (1013,2 hPa) the following semi-circular cruising levels shall be used:
For the following VFR flights, aircraft shall be equipped with a Mode S transponder:
- flights in airspace "C" oder "D" (non-control zone)
- flights in transponder mandatory zones (TMZ)
- flights at night in controlled airspace
- flights above 5000 ft MSL or 3500 ft AGL (whichever is higher)
Transponder Code for VFR flights: A/C 7000