The AgustaWestland AW139 is a 15-seat medium-sized twin-engined helicopter developed and produced principally by AgustaWestland.
Design and development
The AW139 is a conventional twin-engine multi-role helicopter. It has a five-bladed fully articulated main rotor with a titanium hub and composite blades and a four-bladed articulated tail rotor. It is fitted with retractable tricycle landing gear, the two aft wheels retracting into external sponsons which are also used to house emergency equipment. It is flown by a crew of two pilots, with up to 15 passengers accommodated in three rows of five. The AW139 had been aimed at a vacant niche in the market, sitting below larger types such as the Eurocopter AS332 Super Puma and Sikorsky S-92, and above smaller ones like the Bell 412 and Eurocopter EC155. Rotor & Wing has described the AW139's flying attitude as 'docile and predictable'.
The AW139 is powered by two FADEC-controlled Pratt & Whitney Canada PT6C turboshaft engines; the FADEC system seamlessly adjusts the engines for pilot convenience and passenger comfort, and can automatically handle a single-engine failure without noticeable deviation. It was constructed with maintenance requirements in mind; critical systems can be readily accessed, where possible the number of parts has been reduced, and many components have been designed for an extended lifecycle; a Health and Usage Monitoring System (HUMS) is also equipped. In excess of a thousand customizable items of equipment can be configured per customer demand, including auxiliary fuel tanks, rescue hoists, cargo hooks, search and weather radar, ice protection systems, external cameras and search lights, and seating arrangements.
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The AgustaWestland AW139 is a 15-seat medium-sized twin-engined helicopter developed and produced principally by AgustaWestland. It is marketed at several different roles, including VIP/corporate transport, offshore transport, fire fighting, law enforcement, search and rescue, emergency medical service, disaster relief, and maritime patrol. In addition to AgustaWestland's own manufacturing facilities in Italy and the United States, the AW139 is produced in Russia by HeliVert, a joint venture between AgustaWestland and Russian Helicopters..
The Irish Air Corps was the first military operator of the type, having taken delivery of its first AW139, of a batch of six, in August 2006. The United Arab Emirates Air Force and the Qatar Air Force became the second and third military operators of the AW139, having ordered 9 and 18 of the type respectively. A specialised military variant, the AW139M, was later launched, for which the Italian Air Force was the launch customer. Designated as HH-139A in Italian service, they are used for combat search and rescue (CSAR) operations.
Agusta/Bell AW-139 (SAR): See below
Role Medium-lift SAR/utility helicopter
First flight 3 February 2001
Status In production
Primary users Italian Air Force
CHC Helicopter, Irish Air Corps ; UAE Air Force
Number built 770
Unit cost $12 million (2013)
Developed into AgustaWestland AW149
Crew: one or two Capacity: 15 passengers
Length: 16.66 m (54 ft 8 in)
Width: 2.26 m (10 ft 0 in)
Height: 4.98 m (16 ft 4 in)
Powerplant: 2 × Pratt & Whitney Canada PT6C-67C turboshaft engine, 1,142
Maximum speed: 310 km/h (193 mph)
Range: 1,061 km ( miles)
Service ceiling: 6,096 m (20,000 ft)
Armament 2 x 7.62 mm FN MAG machine guns mounted in side windows (Irish Air Corps)
Agusta/Bell AW-139 (Utillity)
The Bell 430 is an American twin-engine light-medium helicopter built by Bell Helicopter. It is a stretched and more powerful development of the Bell 230, which, in turn, was based on the earlier Bell 222.