ARGO HELICOPTERS. The cargo helicop-ter has a much larger capacity for carrying loads than the utility helicopter. The cargo helicopter can lift heavy, oversize loads, such as artillery weapons and ammunition, vehicles, and large boxes. The two types of cargo helicopters are the Chinook and the Tarhe.

loading of bulk cargo. The fuselage design gives the helicopter a water-landing capability. A gas turbine, auxiliary power unit provides hydraulic and electric power for ground operations.

(3) The Chinook is fitted with a hydraulic winch for use in cargo loading and rescue operations. A 3,000-pound capacity winch is mounted on the floor in the right-hand forward bulkhead. The winch has 150 feet of cable and can winch up to 12,000 pounds of cargo with the aid of snatch blocks. In addition, an internal cargo-handling system with rollers can be installed in the CH-47D model cargo compartment.

(4) The cargo compartment floor rests on rub-ber vibration isolators. The floor has a maximum load limit of 300 psf. The treadway aft of station 160 will withstand a wheel load of 2,500 pounds. The remaining treadway area will withstand a wheel load of 1,000 pounds. When used for additional cargo space, the ramp must be positioned level with the

a. The CH-47 (Chinook) aircraft is a twin-tur-bine-engine, tandem-rotor helicopter (Figure 1-11). There are presently two models (C and D) in the inventory. They differ mainly in engine horsepower, rotor blades, and gross weight capacity.

(1) The CH-47 is used for troop mo