"IR" . "Instrument rating" . . "non-instrument-rated" . "Multi-engine rating" . "instrument rated" . "instrument-rated" . "Multi-engine centre line thrust rating" . "Instrument rating" . . "instrument training" . "instrument ratings" . . "Instrument flight rating" . "IFR" . . . . "ratings" . . . . . . "instrument rating" . . . "Instrument-rated" . "instrument flight rating" . "Instrument" . "instrument" .