Special visual flight rules
The special visual flight rules , short SVFR (Engl. Special visual flight rules ) can be applied to a flight to visual flight rules , in VMC (Engl. Visual meteorological conditions are performed visual flight conditions) should, even at prevailing worse conditions within a control zone to enable. SVFR adjusts the higher weather minima of the control zone to the lower minima of the surrounding airspace for this flight ( see airspace structure ). In this way, take-off and landing can take place within the control zone and the flight can continue outside under regular conditions. SVFR avoids flying only in accordance with IFR ( Instrument Flight Rules ), although the airspace around the control zone also allows VFR ( Visual Flight Rules ).
In Germany, for control zones in airspace D (CTR), weather conditions of at least 5 km flight visibility, 5 km ground visibility, a main cloud base of 1500 ft , and a distance of clouds vertically 1000 ft, horizontally 1.5 km (until December 5, 2014 was D-CTR does not require a minimum cloud distance) in order to be allowed to fly according to visual flight rules. SVFR reduces these minima in order to enable the flight in airspace G to continue.
In Germany, according to SERA .5010, the following conditions apply to special flights according to visual flight rules in control zones :
- the traffic situation allows this
- the air traffic control unit authorizes this
- there is a flight visibility of at least 1500 m or 800 m (for rotary wing aircraft ) for the pilot
- there is a visibility of at least 1500 m or 800 m (for rotary wing aircraft )
- Earth view is available (note in SERA.5010 is ground view after a translation error ) and the flight can be carried out free of clouds
- a main cloud base of at least 600 feet above ground (AGL) exists (SERA as of December 5, 2014)
- Maximum speed: 140 kt