در این پست به بررسی معنای چند اصطلاح یا خلاصه واژه می پردازیم :
CAD :
civil aviation Department
civil Aviation Directorate (اداره)
ICA :
instruction for continuous Airworthiness
Firewall :
In aviation, a firewall on an aircraft isolates the engine(s) from other parts of the airframe.
RVR :
Runway visual range (RVR) is in aviation meteorology the distance over which a pilot of an aircraft on the centreline of the runway can see the runway surface markings delineating the runway or identifying its centre line.
RVR is normally expressed in feet or meters.
RVR is used to determine the landing and takeoff conditions for aircraft pilots, as well as the type of operational visual aids used at airport.
DH/DA:
A DH/DA denotes the altitude in which a missed approach procedure must be started, it does not preclude the aircraft from dipping below the prescribed DH/DA. A decision height is measured AGL (above ground level) while a decision altitude is measured above MSL (mean sea level).
They are used for precision approaches.
NVIS :
