helicopter survivability

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

ambulance helicopter / medical evacuation (MEDEVAC) helicopter

medical evacuation (MEDEVAC) helicopter / ambulance helicopter

combat survivability

pre-launch survivability

survivability

survivability support

survivability position

battlefield survivability

aircraft battlefield countermeasures and survivability

survivability and security of theater nuclear forces

survivability planning

plan survivability

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