Boeing C-40A Clipper

The military variant of the Boeing 737-700C Next Generation airline transport.

Overview

Boeing United States Military: C-40A 2001–Present $70 million (2017)

The Boeing C-40A Clipper is a multi-talented aircraft designed and manufactured by Boeing and certified by Federal Aviation Administration as 737-700 convertible/combination aircraft configured for the transport of cargo and passengers all over the world. It provides critical logistic support in order to meet mission-sensitive needs.

Specifications

Units
Engine
2 × CFM International CFM56-7B
Engine type
Turbofan
Thrust
2 × 27,300 lbf · 121 kN
Avionics
Honeywell
Wing tips
Blended tips
Seats
121
Crew
—
Cabin width
—
Cabin height
7 ft 0 in  ·  2.13 m
Cabin length
79 ft 4 in  ·  24.18 m
Exterior length
110 ft 4 in  ·  33.63 m
Tail height
—
Fuselage diameter
—
Wing span
112 ft 7 in  ·  34.32 m
Baggage volume
—
Gross weight
—
Empty weight
—
Max takeoff weight
171,000 lb  ·  77,500 kg
Max landing weight
134,000 lb  ·  61,000 kg
Max payload
40,000 lb  ·  18,100 kg
Fuel capacity
6,900 gal · 26,000 L · 20,800 kg (Jet A)
Max cruise speed
542 kt  ·  624 mph  ·  1,004 km/h
Maximum speed
—
Cruise speed
—
Approach speed
137 kt  ·  158 mph  ·  254 km/h
Range
3,000 nm  ·  3,450 mi  ·  5,560 km
Fuel burn
—
Ceiling
41,000 ft  ·  12,500 m
Rate of climb
3,000 ft/min  ·  15 m/s
Takeoff distance
5,500 ft  ·  1,680 m
Landing distance
4,700 ft  ·  1,430 m
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Boeing C 40A Clipper

Operational Context

C-40A Production

This aircraft is a version of Boeing 737-700C Next Generation. Maiden flight took place in April 2000 and entered into service with the United States Naval Reserve Fleet Support Squadron after a year in 2001. The Boeing C-40A is the first new logistics aircraft to join the US Naval Reserve in 17 years.

In June 2006, the ninth aircraft was delivered. Two more aircraft were ordered by US Navy in December 2008, delivered in February 2011. The US Navy requires up to 20 units.

The aircraft program is conducted by Boeing Derivative Airplane Program in Seattle. Fuselage manufacturing happened at the Boeing facility in Wichita, Kansas, then the assembly in Renton, Washington. Flight Testing took place in Seattle, and combination, modifications, and certification took place in Wichita, Kansas. The Naval Reserve is responsible for the line maintenance of C-40A.

C-40A Design

Boeing C-40A is authorized to operate in three settings: an all-passenger configuration where it can transport 121 passengers, an all-cargo configuration to accommodate 8 cargo pallets, or a combination of 3 cargo pallets and 70 passengers on the main deck. C-40A is staffed and operated by US Naval Reserve.

This aircraft provides longer range and high-priority logistical airlift to aid military transport activities. Fitted for deployment to civil airports and military bases, Boeing C-40A is formed on a civil airline design. Its 33.63-meter-long and 12.55-meter-tall fuselage, and 4.32-meter wing is built with an aluminum alloy fail-safe design.

Structured to accommodate added gross weight, the undercarriage of C-40A has been enhanced, and the tricycle-type landing gear is suited with brakes by Honeywell or Goodrich and shock absorbers by Boeing.

C-40A Flight Deck

The flight deck of C-40A Clipper is a two-crew deck with a glass cockpit same as the Boeing 737-700 aircraft. It is designed with a Honeywell common display system with five flat panel liquid crystal display screens. It also has an advanced global positioning system and a dual flight management system.

C-40A Engine and Performance

The Boeing C-40A Clipper is powered by two CFM International CFM56-7B turbofan turbofan engines with a maximum thrust of 27,300 lbf each. These engines are mounted at the wing. The nacelle that holds the engine were made of graphite-kevlar-glass-fiber composite and fiber-reinforced plastic. C-40A has a Honeywell 131-9B auxiliary power unit as a source of bleed air and air conditioning of the aircraft.

It can fly at a maximum speed of 534 knots up to a service ceiling of 41,000 feet, with a travel range of 3,000 nautical miles.