Also known as: RA#, RA...
RA has various meanings in the Aircraft category. Discover the full forms, definitions, and usage contexts of RA in Aircraft.
This is an advisory from a Traffic Collision Avoidance System (TCAS) given to the flight crew recommending either a manoeuvre intended to provide separation from all traffic threats or a manoeuvre restriction intended to maintain existing separation.
AircraftThe altitude of an aircraft as determined by radar–type radio altimeter thus the actual distance from the nearest terrain feature.
AircraftAn onboard radar for determining the altitude of an aircraft above an underlying surface.
AircraftThe difference between the highest and lowest values of a measurable attribute of the output of a process. An area between two limits within which a quantity is measured, stated in terms of a lower and upper limits. The categorization of an attribute into different segments. The set of values that a quantity or function may take.
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