|An Italian Air Force HH-139 at Trident Juncture 15|
|Role||Medium-lift SAR/utility helicopter|
|First flight||3 February 2001|
|Primary users||Italian Air Force|
Irish Air Corps
United Arab Emirates Air Force
|Number built||1100+ as of January 2021|
|Developed into||AgustaWestland AW149|
The AgustaWestland AW139 is a 15-seat medium-sized twin-engined helicopter developed and produced by the Anglo-Italian helicopter manufacturer AgustaWestland (now part of Leonardo). 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.
The AW139 was originally designed jointly by the Italian helicopter manufacturer Agusta and the American company Bell Helicopters, thus it was marketed as the Agusta-Bell AB139, but was redesignated as the AW139 after Bell withdrew from the project. In addition to AgustaWestland's manufacturing facilities in Italy and the United States, other companies are also involved in the programme, such as the Polish manufacturer PZL-Świdnik, which has produced hundreds of AW139 airframes, and HeliVert, a joint venture between AgustaWestland and Russian Helicopters, which has also established a production line inside Russia for the type. Having performed its maiden flight on 3 February 2001, the AW139 entered revenue service during 2003 and quickly provided itself to be a commercial success.
Many of the AW139 customers have been in the civilian sector; large fleets have been obtained by operators such as CHC Helicopter, Gulf Helicopters, and Weststar Aviation. Its performance has enabled it to become popular amongst operators supporting the offshore oil and gas industry. A dedicated militarised model, the AW139M, was also developed by AgustaWestland; it was first procured by the Italian Air Force, other military operators include the United States Air Force, which operates the MH-139 Grey Wolf model. The Japanese business Mitsui Bussan Aerospace has obtained an exclusive distribution agreement for the AW139 in the country. Over 1,100 rotorcraft had been sold by January 2021. The AW139 has been subsequently developed into the AW149, an enlarged medium-lift military-orientated rotorcraft.
In 1997, the Italian helicopter manufacturer Agusta launched a programme to develop a replacement for the Bell Huey family of helicopters (which had been built in very large numbers by Bell Helicopter and under license by Agusta). A potential market of 900 aircraft was predicted. In 1998, Bell and Agusta entered into an agreement setting up a joint venture, Bell/Agusta Aerospace Company (BAAC), to develop two aircraft: a conventional helicopter and a tiltrotor aircraft. These became the Bell/Agusta AB139 and Bell/Agusta BA609 respectively. Bell was to be the leading partner for the development of the BA609 while Agusta would be the lead partner for the AB139; it was intended for production, sales, and support to be shared.
On 26 September 2000, the first order for the type was placed by Bristow Helicopters. The first preproduction helicopter flew on 3 February 2001 at Vergiate in Italy, with two further AW139s also participating in flying trials. The first production AW139 made its first flight on 24 June 2002. European JAA certification was received in June 2003, and its FAA type certificate followed in December 2004. By May 2005, the AW139 had received in excess of 100 orders worldwide. In the US, the type was marketed under the designation US139, and was entered into the US Army's Light Utility Helicopter competition. One key market for the AW139 was the oil and gas industry, which required helicopters of increased endurance for offshore operations. In 2005, AgustaWestland bought out Bell's 25% share in the program and all of its rights to the AW139 for $95 million.
In April 2008, AgustaWestland revealed that it was in the process of certifying an increase in the AW139's max gross weight to 14,991 lb (6,800 kg) to better compete in long-range markets served by helicopters such as the larger Sikorsky S-92 and Eurocopter EC225. In 2007, a second production line at the United States AgustaWestland Aerospace plant in Philadelphia, Pennsylvania was established; the Philadelphia plant produced its 200th AW139 in September 2014, at which point U.S. production was intended to reach 40 units per year in the near future. By 2011, AgustaWestland was producing 90 AW139s per year; 9.5% of the company's overall revenue in 2010 was attributed to the type. By 2013, a combined total of 720 AW139s had been sold to over 200 operators in 60 countries.
In 2011, a military-configured variant, the AW139M, was revealed by AgustaWestland. It was promoted at the US market, including for the U.S. Air Force's Common Vertical Lift Support Program. The AW139M is equipped with a high definition forward-looking infrared (FLIR), self-protection system, heavy-duty landing gear, and has low thermal and acoustic signatures; a significant proportion of the equipment is sourced from American manufacturers. Options offered include an external stores system including various armaments, armoured seats, self-sealing fuel tanks, and a full ice protection system for all-weather operations.
The AW139 serves as the basis for AgustaWestland's wider business strategy, under which it aims to produce a standardised family of helicopters with common design features. The sharing of components and design philosophies is intended to simplify maintenance and training for operators; commonality also lowers the production costs. The AW139 was the first of this group, and as of 2014, it was to be joined by the larger AW149 and AW189, aimed at military and civilian customers respectively. Advances made in the development of new models are intended to be transferable onto existing family members, decreasing the cost of future upgrades for the AW139.
In June 2010, it was announced that AgustaWestland and Rostvertol would build a manufacturing plant in Tomilino, Moscow Region, where it was initially planned to produce AW139s by 2012. HeliVert, a joint venture between AgustaWestland and Rostvertol, commenced domestic production of the AW139 in 2012, at which point it was planned that between 15 and 20 helicopters would be produced per year. The first AW139 to be assembled in Russia made its first flight in December 2012. In January 2013, the Russian Defense Ministry was reportedly considering placing an order for seven AW139s. In January 2014, HeliVert received a Certificate of Approval from the Aviation Register of the Interstate Aviation Committee to commence production of commercial AW139s. In September 2014, a certificate was granted to perform comprehensive maintenance and servicing of the type at the Tomilino facility.
During 2015, AgustaWestland unveiled an AW139 model with an increased gross weight of seven tonnes, enabling a range of 305 km while carrying 12 passengers; existing AW139s can also be rebuilt to the newer heavy-weight model. This heavier airframe comes at the expense of decreased hot and high performance. In November 2015, AgustaWestland demonstrated a 60-minute "run-dry" test (no oil) of an AW139's main gearbox, 30 minutes greater than any other certified rotorcraft at the time.
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. More than 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 searchlights, and seating arrangements.
The AW139 cockpit is based on the modular Honeywell Primus EPIC avionics system incorporating a four LCD screen glass cockpit. Although an option on early models, most aircraft include a four-axis autopilot, which allows higher levels of automation and safety and enables advanced functions such as auto-hover. This level of automation has allowed certification for single-pilot operations under instrument flight rules conditions (SPIFR), and the cockpit can also optionally be modified for compatibility with night vision goggles. The latest version of the Primus EPIC avionics systems includes a Synthetic Vision System. Pilot training for the type is available via advanced Level D Full Flight Simulators. According to Shipping & Marine, the AW139 has "the largest cabin in its class"; containing up to 15 passengers or four litters and accompanying medics, an additional baggage compartment is used to stow equipment to keep the main cabin clear for use.
Large sections of the AW139 have been developed and produced by a range of different companies. Airframes are typically produced by PZL-Świdnik, who delivered their 200th airframe in April 2014. Pratt & Whitney Canada produce the type's PT6C turboshaft engines, while the primary and secondary transmissions were developed by Westland GKN and Kawasaki Heavy Industries respectively. A significant portion of the avionics are sourced from Honeywell. Turkish Aerospace Industries has been subcontracted to manufacture various elements of the AW139, including the fuselage, canopy, and radome. Final assembly of most AW139s is performed at AgustaWestland's facilities in Philadelphia, United States, and Vergiate, Italy; those destined for customers within the Commonwealth of Independent States are typically assembled by a third final manufacturing plant in Tomilino, Moscow operated by HeliVert.
The Irish Air Corps was the first military operator to introduce the AW139; it took delivery of the first of a batch of six rotorcraft during August 2006. The United Arab Emirates Air Force and the Qatar Air Force became the second and third military operators of the AW139, procuring 9 and 18 rotorcraft respectively. A specialised military variant, the AW139M, was subsequently launched, for which the Italian Air Force became the launch customer. Designated HH-139A in Italian service, the type has been primarily tasked with combat search and rescue (CSAR) operations. The Italian Coast Guard also placed repeat orders for the type throughout the 2010s, having reportedly ordered a total of 12 AW139s by mid-2016.
During February 2006, Mitsui Bussan Aerospace signed a $100 million contract for 12 AW139s and an exclusive distribution agreement for the AW139 in Japan. In October 2006, the Japan Coast Guard announced its selection of the AW139 as the replacement for its Bell 212 search and rescue fleet; by early 2011, 18 AW139s were on order by the Japan Coast Guard through Mitsui Bussan as the distributor, a total of 24 are expected to be ordered. The Japanese National Police Agency placed multiple orders for the AW139; other organisations in the nation have used the type for electronic news gathering, firefighting, disaster relief operations. During 2016, Leonardo announced that the 50th AW139 to the Japanese market had been delivered. In March 2017, the delivery of the first Japanese VIP-configured AW139 took place to an undisclosed customer.
In the North American market, CHC Helicopter was the first operator of the type. In 2012, CHC became the largest operator of the AW139 in the world, at that point operating a fleet of 44 in search and rescue, emergency medical service and offshore transport missions. In 2015, responsibility for the maintenance of CHC's AW139 fleet was reorganized under their maintenance, repair and overhaul services (MRO) division, Heli-One; early activities have included post-delivery modifications and engine overhauls. Heli-One has endeavoured to expand the scope of its MRO in coordination with Leonardo Helicopters, becoming an authorized component repair center by the company, and become approved to perform main gearbox work in April 2021.
During October 2012, the Royal Thai Army ordered a pair of AW139s; a further eight were produced in October 2015. In September 2021, the privately-owned company Thai Aviation Services arranged the delivery of three AW139s to undertake a multi-year contract to support oil and gas extraction activities in Malaysia. In 2021, following the retirement of the Royal Malaysian Air Force's Sikorsky S-61 fleet, the service leased four AW139s as an interim replacement.
Qatar-based firm Gulf Helicopters has become one of the largest AW139 operators worldwide, first ordering the type in 2007 for offshore transport duties; it has since become an authorized service center and training center for the AW139. Malaysian operator Weststar Aviation has the distinction of being the biggest operator of the AW139 in the Asia Pacific region; by February 2014, the company hah ordered a total of 34 helicopters. Since taking delivery of their first AW139 in December 2010, Weststar has typically employed the type in support of offshore oil and gas operations.
Numerous AW139s have been produced for operators in Russia, mainly via the HeliVert initiative. In September 2014, Exclases Russia ordered three in VIP configurations. During December 2021, it was announced that HeliVert had supplied four AW139s to the Russian state-owned defense conglomerate Rostec. In March 2022, shortly following the Russian invasion of Ukraine, Leonardo Helicopters suspended its business in Russia and restricted the support available to existing operators of the type in the country.
In July 2014, AgustaWestland announce that the global fleet had accumulated in excess of one million flight hours; by this milestone, a total of 770 AW139s had been produced.
On 24 May 2016, AugustaWestland parent Leonardo-Finmeccanica announced that Pakistan had signed a contract for an undisclosed number of AW139s as part of a fleet renewal programme spread over several batches, including a logistic support and training package, to perform search and rescue (SAR) operations across the country. At the time of the announcement, a total of 11 AW139s were already in service in Pakistan, five of which were being operated for government relief and general transportation duties.
Chinese operators have also imported the type. By February 2010, two AW139s had been ordered by both the Beijing Municipal Public Security Bureau and the Shenzhen Public Security Bureau for law enforcement, disaster relief, and general transportation duties. In July 2022, it was stated that 40 AW139s had been delivered by Leonardo Helicopters to the country while the largest civil helicopter operator in China, CITIC Offshore Helicopter, operates eight AW139s alone.
On 24 September 2018, the United States Air Force (USAF) announced that the MH-139, an AW139 variant, was the winner of a competition to replace the Vietnam-era Bell UH-1Ns, accordingly, the service is set to buy up to 84 MH-139s. On 19 December 2019, the USAF received the first MH-139A Grey Wolf at Eglin Air Force Base. Flight testing by the service commenced during 2020.
- Original Italian-built production aircraft, 54 built.
- Designation change from 55th aircraft onwards, built in Italy.
- AW139 (long nose configuration)
- Long nose variant with increased room for avionics built in Italy and the United States.
- Militarised variant, capable of carrying various weapons payloads.
- Italian Air Force designation for ten search-and rescue configured AW139Ms.
- Italian Air Force designation for two VIP configured AW139s.
- Italian Air Force designation for newer AW139.
- Italian State Police designation.
- Italian Carabinieri designation.
- Italian Guardia di Finanza designation.
- Military variant, was the AgustaWestland proposed entry for the US Army Light Utility Helicopter programme in partnership with L-3 Communications.
- MH-139 Grey Wolf
- Military variant from Boeing in partnership with Leonardo. It was selected by the United States Air Force to replace its UH-1N fleet. The USAF accepted its first MH-139 on 19 December 2019 and named it "Grey Wolf".
- A variant offered to the Polish Armed Forces.
The AW139 is used by military and other operators.
- United States Air Force
- 96th Test Wing
- 582nd Helicopter Group
- 11th Wing
- 908th Wing
- Ambulance Victoria
- Queensland Government Air (QGAir)
- Toll Ambulance Rescue
- Victoria Police
- Westpac Northern Region Helicopter Rescue Service
- Malaysian Fire and Rescue Department
- Malaysian Maritime Enforcement Agency
- Royal Malaysia Police
- Los Angeles City Fire Department
- Maryland State Police
- Miami-Dade Fire Department
- New Jersey State Police
- U.S. Customs and Border Protection
- On 19 August 2011, a Petrobras operated AW139 crashed in the sea at the Campos Basin in Brazil after taking off from an offshore oil platform, killing all four people on board.
- On 13 March 2014, Haughey Air AW139 (registration G-LBAL) crashed shortly after takeoff from Gillingham, Norfolk, United Kingdom, killing all four people on board.
- On 29 December 2018, a United Arab Emirates emergency medical services AgustaWestland AW139 on a mission to lift an injured person clipped the world's longest zip line and crashed in Jebel Jais, Ras Al Khaimah, United Arab Emirates, killing all four crew members.
- On 2 February 2019, an AW139 operated by Caverton Helicopters carrying Nigeria's Vice president Yemi Osinbajo crash-landed in Kabba, Kogi State. Though there were no casualties, the closeness of the crash to the 2019 presidential election fueled speculation of possible foul play, but Caverton attributed the crash to bad weather.
- On 4 July 2019, seven people died when AW139 N32CC crashed off of a small Bahamian island at 2 am. The helicopter was found underwater hours later, about a mile offshore. A billionaire coal baron from Beckley, West Virginia, Chris Cline, his daughter Kameron and five others were onboard headed to Florida due to a medical emergency involving one of the passengers.
- On 1 February 2020, a Fukushima prefectural police AW139 helicopter crashed in a rice field in the city of Koriyama, in northeast Japan. Seven of the crew were hurt, including three police officers, two technicians, and two medical workers. The helicopter was carrying a heart for transplant surgery to the University of Tokyo Hospital. The transplant operation was cancelled due to heart being unable to be recovered in time for a successful transplant. The Fukushima meteorological office issued a strong winds warning to Koriyama at the time of the accident. On impact, the tail and main rotor blades snapped off. The investigation is ongoing.
- Crew: one or two
- Capacity: up to 15 passengers, depending on configuration
- Length: 16.66 m (54 ft 8 in)
- Width: 2.26 m (10 ft 0 in)
- Height: 4.98 m (16 ft 4 in)
- Gross weight: 6,400 kg (14,110 lb) ; 7,000 kg (15,000 lb) for 7 t version
- Fuel capacity: 1568 liter (414 USgal)
- Powerplant: 2 × Pratt & Whitney Canada PT6C-67C turboshaft engine , 1,142 kW (1,531 hp) each
- Main rotor diameter: 13.80 m (45 ft 3 in)
- Maximum speed: 310 km/h (193 mph, 167 kn)
- Cruise speed: 306 km/h (191 mph, 165 kn)
- Range: 1,061 km (659 mi, 573 nmi)
- Endurance: 5 hours 13 minutes
- Service ceiling: 6,096 m (20,000 ft)
- Rate of climb: 10.9 m/s (2,140 ft/min)
|AW139 performing a sea rescue exercise in Valencia, 2013|
|Documentary - Megafactories AgustaWestland AW139 Manufacturing|
|AW139 lifting a sports car|
Aircraft of comparable role, configuration, and era
- Leonardo Helicopters, , Leonardo press release, 11 January 2021
- "US Corporate Operator Signs Contract For Two AW139 Helicopters." Archived April 7, 2014, at the Wayback Machine AgustaWestland, 18 June 2014.
- Lake, Jon (18 November 2019). "AW149 Proves Worth After Early Setbacks". AIN Online. Retrieved 6 October 2020.
- Niccoli 2001, p. 158.
- Bower, Ron. "The AB139: Filling The Market Gap." Rotor&Wing, 1 May 2005.
- Jackson 2003, p. 227.
- Niccoli 2001, p. 163.
- "AW139, setting the standard in its category." Archived April 7, 2014, at the Wayback Machine helicomag.com, 14 June 2012.
- Jackson 2003, p. 31.
- "Mission-Configured US139 Demonstrates Ability To Meet And Exceed Requirements." Archived 7 April 2014 at the Wayback Machine AgustaWestland, 21 December 2005.
- Kay, Marcia Hillary. "40 Years Retrospective: It's Been a Wild Ride" Rotor & Wing, August 2007. Accessed: 8 June 2014. Archived on 8 June 2014.
- de Briganti, Giovanni (15 March 2007). "The Will To Survive". Rotor & Wing. Archived from the original on 24 September 2015. Retrieved 9 March 2015 – via HighBeam Research.
- Bell Helicopter Sells Interest In AB139 Joint Venture". Aero News, 22 November 2005.
- McKenna, Thomas. "Rotorcraft Report: AgustaWestland Bolsters AW139, Racks Up Orders." Archived 2014-05-05 at the Wayback Machine Rotor&Wing, 1 April 2008.
- Osborne, Tony. "PAS 2011: AW139 has 'changed' AgustaWestland's behaviour". Rotorhub. Shephard Media. 20 June 2011. Retrieved 11 November 2012.
- "AgustaWestland Philadelphia Delivers 200th AW139." Archived 2014-09-27 at the Wayback Machine aviation.ca, 18 September 2014.
- "AgustaWestland Debuts the AW139M Helicopter." Archived April 7, 2014, at the Wayback Machine AgustaWestland, 17 February 2011.
- Head, Elan. "Upward Trend." Vertical, 22 January 2014.
- "Italian, Russian Firms to Build Helicopter Factory | Business". The Moscow Times. Retrieved 14 September 2012.
- "Exclases Russia buys three corporate AW139s from HeliVert." Vertical, 17 September 2014.
- "Russia to Buy 7 AW139 Helicopters." RIA Novosti, 28 January 2013.
- "HeliVert gets approval for production of commercial AW139." corporatejetinvestor.com, 30 January 2014.
- "HeliVert receives approval to work on AW139s in Russia." Vertical, 15 September 2014.
- Turnbull, Grant. "AgustaWestland unveils heavier AW139". Rotorhub, Shephard Media. 3 March 2015. Retrieved 9 March 2015.
- "AgustaWestland sets new safety benchmark for helicopter gearboxes". Vertical Magazine. 11 November 2015.
- Niccoli 2001, pp. 158–159, 162.
- "Swedish Maritime Administration Orders Seven AW139 Helicopters for Search and Rescue." Archived 2014-04-13 at the Wayback Machine Shipping & Marine, 4 February 2013.
- "AW139 fleet passes 1,000,000 flight hours milestone". AgustaWestland. 14 July 2014. Archived from the original on 28 July 2014.
- Huber, Mark. "Leonardo AW139 Gets Honeywell Primus Epic Upgrade". Aviation International News.
- "Helicopter News." Archived December 24, 2010, at the Wayback Machine propilotmag.com, 5 April 2014.
- "AW139 Program - Turkish Aerospace Industries, Inc". Tai.com.tr. Archived from the original on 20 March 2014. Retrieved 20 March 2014.
- "Year in Review—Products: Pick of the Litter." Rotor&Wing, 1 December 2006.
- Hoyle, Craig. "PICTURE: Qatar accepts first AW139 military helicopter." Flight International, 25 November 2009.
- Peruzzi, Luca. "PICTURES: Italian air force fields first search and rescue HH-139A." Flight International, 12 March 2012.
- "New Orders Boost AW139 Market Leadership, Says Maker". ainonline.com. 6 August 2016.
- "AgustaWestland receives orders for 8 more AW139 helicopters." Shephard Media, 9 March 2011.
- English, Jennifer Leach. "Japan National Police Agency Orders Another AW139." AIN online, 16 April 2014.
- "Leonardo-Finmeccanica and Mitsui Bussan Aerospace celebrate 50th AW139 Helicopter for Japan". leonardo.com. 11 July 2016.
- "Leonardo expands presence of the bestselling AW139 in Japan with first VIP helicopter sale and delivery of additional aircraft". leonardo.com. 8 March 2017.
- "CHC Helicopter Signs Contract for 10 AW139s." asdnews.com, 10 July 2012.
- "CHC orders additional Sikorsky S-92 and AgustaWestland AW139 helicopters, enters into agreements for corresponding MRO capabilities and agrees to additional $225M lease finance facility." Heli-One, 19 June 2015.
- "Heli-One Approved To Develop AW139 Main Gear Box MRO Capability". heli-one.com. 28 April 2021.
- Hoyle, Craig. "Thai army to boost AW139 fleet size." Flight International, 12 October 2015.
- Stones, Mike (7 September 2021). "Milestone to deliver three AW139s to Thai Aviation Services".
- David, Adrian (24 January 2022). "All 4 leased AW139 for RMAF by April". New Straits Times.
- "Gulf Helicopters AW139 fleet achieves 50,000 hour milestone." Arabian Aerospace Online News Service, 31 March 2014.
- "Weststar Orders 10 Additional AW139 Helicopters". AgustaWestland. Archived from the original on 28 February 2014. Retrieved 28 February 2014.
- "Weststar Aviation Services Takes Delivery of Its First AW139." Archived 2014-03-13 at the Wayback Machine AgustaWestland, 2 December 2010.
- Malloy, Tomas (4 March 2022). "Leonardo Helicopters: Somerset-based firm's deep Russian state ties revealed". somersetlive.co.uk.
- Landini, Francesca (11 March 2022). "Italy's Leonardo suspends civil helicopter business in Russia". Reuters.
- "Pakistan signs up for more AW139 helos". IHS Jane's 360. 26 May 2016.
- Francis, Leithen (11 February 2010). "China's Shenzhen security bureau orders AW139". flightglobal.com.
- Huber, Mark (25 July 2022). "Leonardo Logs More Helicopter Sales in China". ainonline.com.
- Trevithick, Joseph (24 September 2018). "Dark Horse Contender Boeing Snags Air Force Deal To Replace Aging UH-1N Hueys With MH-139". The Drive. Archived from the original on 25 September 2018. Retrieved 25 September 2018.
- Insinna, Valerie (24 September 2018). "The Air Force picks a winner for its Huey replacement helicopter contract". Defense News. Washington. Archived from the original on 25 September 2018. Retrieved 25 September 2018.
- USAF names ballistic missile security helicopter the MH-139A ‘Grey Wolf’. Flight International. 19 December 2019.
- Insinna, Valerie (19 December 2019). "The US Air Force's UH-1N Huey replacement helicopter has a new name". Defense News. Retrieved 6 July 2020.
- Command, Samuel King Jr, Air Force Materiel (20 February 2020). "The Air Force just started testing its new Grey Wolf helicopter, the replacement for the Huey". Business Insider Australia. Retrieved 6 July 2020.
- "Type Certificate Data Sheet: AB139-AW139." European Aviation Safety Agency, Issue 15, 23 January 2012.
- "AW139M." Archived April 19, 2012, at the Wayback Machine AgustaWestland, Retrieved: 5 April 2014.
- Flight International "Italy fields first of 10 search and rescue HH-193As", 20–26 March 2012
- "AgustaWestland VH-139A". Aviationsmilitaires.net. 7 May 2013. Archived from the original on 13 April 2014. Retrieved 15 July 2014.
- "Leonardo: Italian Air Force enhances emergency response and homeland security capabilities with the delivery of the first HH-139B helicopter". www.leonardocompany.com.
- "Fully operational the eight Italian State Police AW139". www.leonardo.com.
- "Italian helicopters at Cortina 2021 FIS Alpine World Ski Championships". www.scramble.nl.
- "Agusta-Westland PH-139D aviation photos on JetPhotos". JetPhotos.
- "AgustaWestland and L-3 Join Forces on Army LUH - Team US139". www.defense-aerospace.com. Retrieved 21 November 2018.
- "MH-139". Boeing. Archived from the original on 23 September 2017. Retrieved 23 September 2017.
- Haracic, Armin (18 September 2017). "Boeing submits bid to replace the Air Force's Huey helicopters". Defense News. Washington, D.C. Archived from the original on 18 September 2017. Retrieved 23 September 2017.
- "MSPO 2021: Leonardo offers Poland AW139W". MILMAG. 14 September 2021.
- "World Air Forces 2018". Flightglobal Insight. 2018. Retrieved 4 August 2018.
- "World Air Forces 2022". Flightglobal. 2022. Retrieved 30 June 2022.
- Scramble (14 May 2021). "First AW139 delivered to Australian Army". Scramble. Retrieved 25 July 2021.
- "CHC introduces half dozen AW139s for RAAF work". Business Air News. 11 March 2019. Retrieved 17 June 2019.
- "Colombia's New Presidential Helicopter AW139". Helis.com.
- "Colombia selects Leonardo AW139 as new presidential transport helicopter". 12 January 2021.
- Muntz, Marco (June 2015). "Presidential AW139 for Ivory Coast". Air International. Vol. 88, no. 6. p. 8. ISSN 0306-5634.
- "AW-139". Aeronautica Militare. Retrieved 22 May 2019.
- "I MEZZI - AW139 NEMO - Capitanerie di porto - Guardia Costiera - www.guardiacostiera.it - Sito Ufficiale". www.guardiacostiera.it. Archived from the original on 28 February 2014. Retrieved 28 February 2014.
- Ziezulewicz, Geoff (4 August 2016). "Italian coast guard orders two Leonardo AW139 helicopters". United Press International. Retrieved 5 August 2016.
- "Delivery of Kenyan AW139s imminent". 29 April 2019. Retrieved 6 July 2020.
- Staff, Blog Before Flight. "ITALIAN AIR FORCE TRAINS LEBANESE AW139 CREW".
- "First TLDM AW139 Seen". scramble.nl. 16 September 2021. Retrieved 11 November 2021.
- "RMAF Ready to Deploy Rotorcraft Force to Help Monsoon Flood Operations – Asian Defence Journal".
- "World Air Forces 2020". Flightglobal Insight. 2020. Retrieved 16 January 2020.
- Nigerian Navy. "Nigerian Navy Takes Deivery of an AW 139 Helicopter". Instagram. Archived from the original on 26 December 2021. Retrieved 22 May 2020.
- "Pakistan Air Force's No. 88 squadron converts to AW139". 4 March 2018.
- Hərbi TV (31 October 2016). "Turkmenistan Military Parade 2016". YouTube (in Turkmen). Ashgabat. Archived from the original on 15 October 2017. Retrieved 7 August 2017.
- "Government of Turkmenistan". helis.com. Archived from the original on 7 August 2017. Retrieved 7 August 2017.
- "'Game changer': Maxwell chosen as training unit location for new helicopter".
- "Abu Dhabi Police AW139". Air International. Vol. 74, no. 5. June 2008. p. 6. ISSN 0306-5634.
- "Number and type of AW Helicopters in service in Algeria". Copyright (c) Secret Difa3. 23 April 2015. Retrieved 23 April 2015.
- "Air Ambulance Victoria". Ambulance Victoria. Retrieved 1 May 2019.
- "QGAir orders new AW139s". Australian Aviation. 24 October 2017. Retrieved 4 October 2020.
- Boilerplate; user_master. "Our Helicopters". The Toll NSW Ambulance Aeromedical Service. Retrieved 27 July 2022.
|last2=has generic name (help)
- "Victoria Police orders four aircraft for air wing fleet". Australian Aviation. Retrieved 17 June 2019.
- "Aircraft & Bases". Westpac Rescue Helicopter Service. Retrieved 27 July 2022.
- "Polícia Federal do Brasil adquiriu helicóptero AW139". Piloto Policial. 12 June 2012. Retrieved 12 June 2012.
- "Bulgarian Border Police Takes Delivery Of Its First AW109 Power". Aviation News. 30 March 2010. Retrieved 7 February 2013.
- "Ornge - About". www.ornge.ca.
- "Carabineros de Chile AW139 achieves operational readiness." Vertical, 16 April 2015.
- "AgustaWestland AW139 in China Ministry of Public Security". helis.com. Retrieved 19 December 2017.
- "FOTO: Hrvatska policija dobila novi helikopter vrijedan 119 milijuna kuna". poslovni.hr. Retrieved 10 January 2017.
- "Cyprus Police - Cyprus Police Aviation Unit". Archived from the original on 6 March 2014. Retrieved 8 July 2013.
- "Estonia's Border Guard fails to plan ahead". helihub.com. Retrieved 21 February 2013.
- "Indo Defence 2016: Indo SAR AW139 up close (video) - RH - Rotorhub - Shephard Media". www.shephardmedia.com. Retrieved 6 July 2018.
- "Italian Police Takes Delivery of its Fifth AW139 Helicopter". AgustaWestland. Archived from the original on 28 February 2014. Retrieved 28 February 2014.
- "Guardia di Finanza - AW139". Gdf.gov.it. Archived from the original on 6 March 2014. Retrieved 28 February 2014.
- Pittaway, Nigel (February 2019). "AW139 parapublic sales". Air International. Vol. 96, no. 3. p. 93. ISSN 0306-5634.
- TOKYO METROPOLITAN POLICE ORDERS AN ADDITIONAL AW139 HELICOPTER 10/12/2014 Archived 2016-10-09 at the Wayback Machine Retrieved October 6, 2016
-  Retrieved October 31, 2017
- Japan Coast Guard Retrieved October 20, 2017
- "Nkaissery receives 15-seater choppers of AW139 Model at cost of Sh683 Million at Wilson Airport". nepjournal.com. Archived from the original on 27 April 2016. Retrieved 12 December 2017.
- "Lebanese Government Aviation Unit". aeroflight.co.uk. Retrieved 5 January 2019.
- "AW139 in Jabatan Bomba dan Penyelamat Malaysia". Helis.com. Retrieved 30 April 2015.
- "Malaysia maritime agency receives three AW139 helicopters". Flight International. Retrieved 14 December 2012.
- "Two More VIP AW139s Delivered To Malaysia". Helis.com.
- "Police air wing unit receives AW139 helicopters". NST. 28 May 2016.
- "Union Government receives its first AW139 helicopter". Myanma Platform. Retrieved 30 October 2020.
- "Govt. buys a helicopter for heads of state and cabinet members". Eleven Media Group. Retrieved 22 February 2020.
- "Laatse vlucht Kustwacht AS-332 helikopter". Kustwacht. 21 October 2012. Archived from the original on 1 June 2013. Retrieved 1 May 2013.
- "KLPD neemt eerste AW139-transporthelikopter in ontvangst". Luchtvaartnieuws. Archived from the original on 3 July 2013. Retrieved 2 May 2013.
- "Royal Oman Police Air Wing AW139 Deliveries Commence". Air International. Vol. 74, no. 3. March 2008. p. 8. ISSN 0306-5634.
- "Así son nuestras unidades: helicóptero Helimer AW 139" (in Spanish). Sociedad de Salvamento y Seguridad Marítima. Archived from the original on 2 March 2014. Retrieved 5 February 2013.
- "Sweden SAR takes first AW139". flightglobal.com. 17 September 2013. Retrieved 28 October 2013.
- "AgustaWestland AW139 To Begin SAR Operations In Britain". aero-news.net. Retrieved 18 December 2014.
- "Air Operations - AW139 Helicopter". lafd.org. Archived from the original on 23 January 2013. Retrieved 21 February 2013.
- "Maryland State Police unveil new medevac AW139". helihub.com. 7 October 2012.
- "Miami-Dade County - Fire Rescue". www.miamidade.gov.
- "Fifth and final AW139 delivered to New Jersey State Police". helihub.com. 10 July 2012.
- "CBP Air and Marine Acquires Helicopters for Border Security Mission". cbp.gov. Archived from the original on 8 March 2013. Retrieved 21 February 2013.
- "Helicopter Fleet". Atlantic Airways. Retrieved 9 March 2022.
- "Petrobras ainda apura queda de helicóptero na bacia de Campos". Valor Econômico. Retrieved 2 June 2019.
- "Lord Ballyedmond: NI peer among Norfolk helicopter crash dead". BBC News. 14 March 2014. Retrieved 30 April 2015.
- "Helicopter crash leaves 4 dead after aircraft explodes near world's longest zip line in UAE". Fox News. 30 December 2018.
- "Breaking: VP Osinbajo's chopper crash-lands in Kogi". 2 February 2019. Retrieved 5 February 2019.
- "Former Benjamin students died in Bahamas copter crash, family members say". 5 July 2019. Retrieved 6 July 2019.
- "Japanese police helicopter carrying heart crash-lands in northeast Japan, 7 hurt". 1 February 2020. Retrieved 14 February 2020.
- "AW139 Technical Data". AgustaWestland. Retrieved 24 September 2015.
- Gajetti and Maggiore 2013, pp. 35–37.
- Gajetti, Marco and Paolo Maggiore. "Route Profitability for Helicopters." Società Editrice Esculapio, 2013. ISBN 88-7488-609-8.
- Hoyle, Craig. "World Air Forces Directory". Flight International, Vol. 182, No. 5370, 11–17 December 2012. pp. 40–64. ISSN 0015-3710.
- Jackson, Paul. Jane's All The World's Aircraft 2003–2004. Coulsdon, UK: Jane's Defence Data, 2003. ISBN 0-7106-2537-5.
- Niccoli, Riccardo. "The Bell Agusta AB 139". Air International, September 2001, Vol 61 No 3. ISSN 0306-5634. pp. 158–163.