drone antisubmarine helicopter

air combat capable helicopter / air-to-air capable helicopter

ambulance helicopter / medical evacuation (MEDEVAC) helicopter

medical evacuation (MEDEVAC) helicopter / ambulance helicopter

antisubmarine

antisubmarine aircraft

antisubmarine barrier

antisubmarine missile (ASM)

antisubmarine screen

antisubmarine torpedo

lightweight high-speed antisubmarine torpedo

antisubmarine practice

antisubmarine rocket

nonricochet antisubmarine shell

antisubmarine guided-missile destroyer

atomic antisubmarine weapon

drone helicopter

helicopter drone

single rotor helicopter drone

drone war (world’s first drone war)

drone field of view (drone FOV)

drone swarm attack / drone swarming attack

drone swarm's counter-drone capabilities

hobby drone (hobby grade drone)

one-way attack drone (OWA drone)

assault helicopter company / troop

assault support helicopter battalion

attack helicopter (atk hel)

attack helicopter troop

cargo helicopter

heavy-lift helicopter

helicopter / (розм.) heli / helo / chopper (H; hel)

helicopter amphibious assault ship