helicopter drone

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

ambulance helicopter / medical evacuation (MEDEVAC) helicopter

medical evacuation (MEDEVAC) helicopter / ambulance helicopter

drone antisubmarine helicopter

drone helicopter

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

helicopter carrier

helicopter hoist

helicopter landing deck

helicopter operations

helicopter transportable

landing platform (helicopter)

military helicopter

shipborne helicopter

transport helicopter (trans hel)

utility helicopter

Sea King helicopter

helicopter refuelling area