H-47 Chinook

Heavy-lift dominance, mission ready

The H-47 Chinook is the heavy-lift helicopter of choice for the U.S. Army and 20 international operators. This tandem rotor workhorse excels in cargo and troop transport, search and rescue, casualty evacuation, special operations and disaster relief. Its unique design delivers stability, agility and rear ramp access on unprepared terrain, plus high-altitude performance up to 20,000 feet.

The Block II modernized Chinook adds a strengthened structure, redesigned fuel tanks, an improved drivetrain and open avionics architecture to increase lift, extend range, and enable future upgrades—keeping the fleet ready now and prepared for decades to come.

Capabilities and Features

Tandem Advantage

Tandem rotor design provides agility and flexibility.

Stability

Provides increased stability and superior control in windy conditions.

High altitude

Capable of operations up to 20,000 feet.

Unfettered access

Easy rear ramp access without tail rotor clearance limits.

Proven Performance

Heavy-lift performance for a broad spectrum of missions.

Mass cargo and troop transport

With internal and external load capabilities, and the ability to operate in any weather condition, the Chinook can carry personnel and equipment anywhere.

Special Operations

Known for its survivability, transport and infiltration/extraction capabilities, the Chinook supports some of the most daring missions around the globe.

Humanitarian and disaster relief

Advanced cargo systems and sustained flight performance let the Chinook carry heavy loads over long distances to support humanitarian and disaster relief efforts.

Extended range

With extended range fuel tanks and air-to-air refueling capabilities, the Chinook can fly long distances without stopping.

The Block II Edge

Block II upgrades increase performance and improve sustainment to keep the fleet ready now and adaptable for the future.

Structural improvements

Redesigned fuel tanks, strengthened fuselage and improved drivetrain increases lift and extends range while enabling the structure to accommodate future upgrades.

Common airframe

By sharing major components, customers reduce both production and sustainment expenses, while simplifying logistics support for units in the field.

Open avionics and mission systems

Common Avionics Architecture System cockpit and digital automatic flight control system improve situational awareness and enable mission systems integration.

Autonomy

To improve safety, reduce pilot workload, increase mission effectiveness and reduce training costs, Boeing is investing in capabilities that add layers of autonomy to the aircraft.

Sustainment

A compilation of improvements eliminates or minimizes unscheduled maintenance.

CH-47F Chinook Block II Specifications

Rotor Diameter	60 feet (18.3 meters)
Length of Rotors While Folded	50 feet, 9 inches (15.5 meters)
Height (Overall)	18 feet, 7.8 inches (5.7 meters)
Static Forward	7 feet, 6 inches (2.3 meters)
Fuel Capacity	1,080 gallons (4,088 liters)
Maximum Speed	302 kph (170 KTAS)
Mission Radius	306 kilometers (165 nautical miles)
Max Gross Weight	54,000 pounds (24,494 kilograms)

Length of Rotors While Operating	98 feet, 10.7 inches (30.1 meters)
Length of Fuselage	51 feet, 2 inches (15.6 meters)
Fuselage Width	12 feet, 5 inches (3.8 meters)
Idling Forward	10 feet, 11 inches (3.3 meters)
Propulsion	Two Honeywell T55-GA-714A engines; 4,777 shaft horsepower (3,562 kilowatts) each
Cruise Speed	291 kph (157 KTAS)
Service Ceiling	20,000 feet (6,096 meters)
Useful Load	27,700 pounds (12,565 kilograms)