CH-46 Sea Knight
Overview
 
The Boeing Vertol CH-46 Sea Knight is a medium-lift tandem rotor
Tandem rotor
Tandem rotor helicopters have two large horizontal rotor assemblies mounted one in front of the other. Currently this configuration is mainly used for large cargo helicopters....

 transport helicopter
Helicopter
A helicopter is a type of rotorcraft in which lift and thrust are supplied by one or more engine-driven rotors. This allows the helicopter to take off and land vertically, to hover, and to fly forwards, backwards, and laterally...

, used by the United States Marine Corps
United States Marine Corps
The United States Marine Corps is a branch of the United States Armed Forces responsible for providing power projection from the sea, using the mobility of the United States Navy to deliver combined-arms task forces rapidly. It is one of seven uniformed services of the United States...

 (USMC) to provide all-weather, day-or-night assault transport of combat troops, supplies and equipment. Assault Support
Assault Support
Assault Support is one of the six functions of United States Marine Corps aviation and comprises those actions required to airlift personnel, supplies or equipment into or within a battle area by helicopters or fixed-wing aircraft. It provides the Marine Air-Ground Task Force commander the...

 is its primary function, and the movement of supplies and equipment is secondary. Additional tasks include combat support, search and rescue, support for forward refueling and rearming points, CASEVAC
CASEVAC
Casualty evacuation, also known as CASEVAC or by the callsign Dustoff, is a military term for the emergency patient evacuation of casualties from a combat zone. Casevac can be done by both ground and air...

 and Tactical Recovery of Aircraft
Aircraft
An aircraft is a vehicle that is able to fly by gaining support from the air, or, in general, the atmosphere of a planet. An aircraft counters the force of gravity by using either static lift or by using the dynamic lift of an airfoil, or in a few cases the downward thrust from jet engines.Although...

 and Personnel (TRAP).
 
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