Wintertime is VFR night flight time. With the introduction of SERA (Standardised European Rules of the Air) VFR flights no longer require a clearance for airspace class Echo.
To provide protection within the military night low flying system (NLFS) between military aircrafts and VFR flights, restricted areas were established with effect from 31 March 2016.
The ED-R 150 (military night low flying system) consists of approximately 50 route segments all over Germany. The ED-R 150 have a lower limit of 500 ft AGL and up to 7.500 ft MSL.
More details of the NLFS in Germany can be found in
Check NOTAMS and enjoy your VFR night flights!