principles of helicopter flight

command and control principles

NATO Security Principles for the Storage of Military Ammunition and Explosives

principles of combat / joint operations

weapons based on new physical principles

general principles of command

principles of command and leadership

violate norms and principles

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

ambulance helicopter / medical evacuation (MEDEVAC) helicopter

medical evacuation (MEDEVAC) helicopter / ambulance helicopter

flight restriction zone / flight restricted zone (FRZ)

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

load static helicopter