Table 2. Key subjects and related subjects for pilot training of the army aviation

Classify	Core subject	Related subjects
Type / StepAircraft operational capability mastery	Aircraft handling/ operation actInstrument flight (skilled)Weather (full knowledge)Navigation (full knowledge)Aviation safety (full knowledge)Helicopter structure/ operationa principle	Principles of flight (I, II)Aviation regulationsFlight dispatchRadio operationOperation of aviation facilities and related institutions