fire(-fire) helicopter
(розм.) (проти)пожежний вертоліт
(розм.) (проти)пожежний вертоліт
air combat capable helicopter / air-to-air capable helicopter
ambulance helicopter / medical evacuation (MEDEVAC) helicopter
medical evacuation (MEDEVAC) helicopter / ambulance helicopter
slant fire; diagonal fire; oblique fire; fire to the oblique