Also known as: RA#, RA...
RA has various meanings in the Aeronautics category. Discover the full forms, definitions, and usage contexts of RA in Aeronautics.
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.
AeronauticsAn onboard radar for determining the altitude of an aircraft above an underlying surface.
AeronauticsThe 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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