Boeing 737 AEW&C
The Boeing 737 AEW&C is a twin-engine airborne early warning and control aircraft based on the Boeing 737 Next Generation design. It is lighter than the 707-based Boeing E-3 Sentry, and has a fixed, active electronically scanned array radar antenna instead of a rotating one. It was designed for the Royal Australian Air Force (RAAF) under "Project Wedgetail" and designated E-7A Wedgetail.
|Boeing 737 AEW&C |
|A Republic of Korea Air Force Boeing 737 AEW&C|
|Role||Airborne early warning and control (AEW&C)|
|Manufacturer||Boeing Defense, Space & Security (modifications) |
Boeing Commercial Airplanes (original 737 Next Generation design)
|Primary users||Royal Australian Air Force|
Turkish Air Force
Republic of Korea Air Force
|Developed from||Boeing 737 Next Generation|
The 737 AEW&C has also been selected by the Turkish Air Force (under "Project Peace Eagle", Turkish: Barış Kartalı, designated E-7T), the Republic of Korea Air Force ("Project Peace Eye", Korean: "피스 아이"), and the United Kingdom (designated Wedgetail AEW1).
Design and developmentEdit
The Australian Department of Defence evaluated industry proposals for airborne surveillance and early warning systems as early as 1986. Further studies led to the approval of the first phase of Project AIR 5077 in 1994. In 1996, Australia issued a request for proposal (RFP) for the aircraft for the RAAF under Project Wedgetail, which refers to the indigenous eagle. In 1999, Australia awarded Boeing Integrated Defense Systems a contract to supply four AEW&C aircraft with options for three additional aircraft.
The 737 AEW&C is roughly similar to the 737-700ER. It uses the Northrop Grumman Electronic Systems Multi-role Electronically Scanned Array (MESA) radar. The electronically scanned AEW and surveillance radar is located on a dorsal fin on top of the fuselage, dubbed the "top hat", and is designed for minimal aerodynamic effect. The radar is capable of simultaneous air and sea search, fighter control and area search, with a maximum range of over 600 km (look-up mode). In addition, the radar antenna array is also doubled as an ELINT array, with a maximum range of over 850 km at 9,000 metres (30,000 ft) altitude. Radar signal processing equipment and central computer are installed directly below the antenna array.
Other modifications include ventral fins to counterbalance the radar and countermeasures mounted on the nose, wingtips and tail. In-flight refueling is via a receptacle on top of the forward fuselage. The cabin features eight operator consoles with sufficient space for four more; the Australian fleet will operate ten consoles with space for two more (four on starboard side and six on the port side).
Australia ordered four AEW&C aircraft with options for three additional aircraft. Australia has since taken up two of those options. Aircraft deliveries were to begin in 2006, but significant program delays due to integration problems have occurred. The first two Wedgetail aircraft were assembled, modified and tested in Seattle, Washington. The remaining aircraft were modified by Boeing Australia. Boeing and Northrop are teamed with Boeing Australia, and BAE Systems Australia. Boeing Australia will provide training, maintenance and support, BAE provides EWSP systems, Electronic Support Measures (ESM) systems and ground support systems.
On 29 June 2006, the Australian Minister for Defence, Brendan Nelson, announced that Boeing had informed the Australian Government that the Wedgetail project had fallen behind schedule despite a previous assurance that the project was on schedule. Boeing announced an 18-month delay, due to problems integrating radar and sensor computer systems, and was not expected to deliver the aircraft until early 2009. Additionally, Boeing took $770 million in charges in 2006 for the delayed aircraft. On 20 June 2008 Boeing announced a further delay to the program, due primarily to integration of the radar and Electronic Support Measure (ESM) systems.
On 26 November 2009, Boeing delivered the first two 737 AEW&C aircraft to the Royal Australian Air Force (RAAF). Initially these aircraft remained Boeing owned and operated, then on 5 May 2010 the RAAF formally accepted these aircraft into service. The RAAF accepted its sixth and last 737 AEW&C aircraft on 5 June 2012. All Australian aircraft are to be operated by No. 2 Squadron RAAF and will be based at RAAF Base Williamtown with a permanent detachment at RAAF Base Tindal. In November 2012, Wedgetail aircraft achieved Initial Operational Capability.
On 1 April 2014, the first operational sortie occurred with the air control of maritime patrol aircraft taking part in the search for Malaysia Airlines Flight 370 off the coast of Western Australia. On 1 October 2014, a Wedgetail conducted the first Australian sortie over Iraq supporting coalition forces conducting airstrikes against the Islamic State of Iraq and the Levant (ISIL). In November 2015, the Australian E-7A performed the longest Australian command and control mission in a war zone during a 17-hour, 6-minute combat mission, requiring two air-to-air refuelings to stay aloft. Australian Wedgetail crews routinely perform 13-hour missions. In early April 2016, Rotation 5 of aircrew and maintenance personnel that had been operating the RAAF Wedgetail in the Middle East achieved a record 100 percent mission success rate in Coalition operations against ISIS. The E-7A successfully conducted all 36 missions, each lasting upwards of 12 hours, amounting to nearly 500 hours of flying for the one aircraft.
On 26 May 2015, Australia's fleet of six E-7A Wedgetail airborne early warning & control (AEW&C) aircraft achieved final operational capability (FOC). This occurred after the aircraft supported search operations for MH370 and took part in Operation Okra, flying 1,200 hours during more than 100 sorties in the fight against ISIL.
Four Boeing 737 AEW&C Peace Eagle aircraft, along with ground support systems were ordered by the Turkish Air Force, with an option for two more. Turkish Aerospace Industries (TAI) is the primary subcontractor for the Peace Eagle parts production, aircraft modification, assembly and tests. Another Turkish subcontractor, HAVELSAN, is responsible for system analysis and software support besides the delivery of Ground Support Segment which will be located in Konya, Turkey. HAVELSAN of Turkey is also the only foreign company licensed by the U.S. Government to receive critical source codes.
Peace Eagle 1 is modified and tested by the Boeing Integrated Defense Systems in Seattle, Washington, US. Peace Eagle 2, 3 and 4 are modified and tested at the facilities of TAI in Ankara, Turkey, with the participation of Boeing and a number of Turkish companies. In 2006, the four Peace Eagle aircraft were scheduled to be delivered in 2008. In September 2007, Boeing completed the first test flight of Turkey's AEW&C 737. On 4 June 2008, it was announced that the Turkish Aerospace Industries had completed modifications to Peace Eagle 2, the second 737 AEW&C aircraft at TAI's facilities in Turkey. Completion of checks on flight and mission systems took place in the third quarter of 2008. In 2013, Israel responded to American pressure and delivered the EW equipment for the Turkish aircraft.
The first Peace Eagle aircraft, named Kuzey (meaning North) was formally accepted into Turkish Air Force inventory on 21 February 2014. The remaining three aircraft will be named Güney (South), Doğu (East) and Batı (West). The fourth and final Peace Eagle aircraft was delivered in December 2015.
On 7 November 2006, Boeing won a $1.6 billion contract with South Korea to deliver four aircraft by 2012. Boeing beat the other entrant, IAI Elta's Gulfstream G550-based aircraft, which was eliminated from the competition in August 2006. The first Peace Eye aircraft was delivered to Gimhae Air Base, Busan for acceptance testing on 1 August 2011 with the remaining three aircraft delivered every six months until 2012. The second aircraft was modified into an AEW&C configuration by Korea Aerospace Industries (KAI), then delivered to Gimhae Air Base on 13 December 2011. After receiving AEW&C modifications by KAI, the third aircraft was delivered on 17 May 2012 to Gimhae Air Base. The fourth aircraft was delivered on 24 October 2012.
In October 2018, the British Government announced that it was in discussion with Boeing and the Royal Australian Air Force about the potential for the E-7 Wedgetail radar aircraft to replace its E-3D fleet. The apparent decision to proceed with procurement without a competition received some criticism, with the Ministry of Defence accused of displaying favouritism towards Boeing, while Saab voiced its opposition to the "non-competitive" deal as it could offer the Erieye system mounted on Airbus A330 MRTT aircraft. On 22 March 2019, it was announced by Defence Secretary Gavin Williamson that the UK had signed a $1.98 billion deal to purchase five E-7 Wedgetails.
Two of the five aircraft are to be converted commercial airliners and the rest are to be new. Work on each aircraft is to take about 24 months, with the first aircraft to be modified beginning in 2021 and the last to be completed in 2026. Modification of the airframes was expected to be performed by Marshall Aerospace, however it withdrew in May 2020 and Boeing selected the UK branch of STS Aviation Group on 20 May 2020. As of June 2020, the first aircraft is expected to be delivered to the RAF in 2023.
In 2014, Qatar stated it planned purchase three 737 AEW&C aircraft.
In February 2021 General Kenneth S. Wilsbach, the Commander of the United States Pacific Air Forces, proposed that the USAF rapidly acquire E-7s to replace the E-3s deployed to the Indo-Pacific region.
- Republic of Korea Air Force – four aircraft in use, designated "Peace Eye". The ROKAF is considering ordering an additional 2-3 aircraft.
- 51st Air Control Group
- 271th Airborne Air Control Squadron
Data from Boeing
- Crew: six to ten
- Capacity: 43,720 lb (19,830 kg)
- Length: 110 ft 4 in (33.6 m)
- Wingspan: 117 ft 2 in (35.8 m)
- Height: 41 ft 2 in (12.5 m)
- Wing area: 980 sq ft (91 m2)
- Airfoil: B737D
- Empty weight: 102,750 lb (46,606 kg)
- Max takeoff weight: 171,000 lb (77,600 kg)
- Powerplant: 2 × CFM International CFM56-7B27A turbofans, 27,300 lbf (121 kN) thrust each
- Cruise speed: 530 mph (853 km/h, 460 kn)
- Range: 4,000 mi (6,500 km, 3,500 nmi)
- Service ceiling: 41,000 ft (12,500 m)
Aircraft of comparable role, configuration, and era
- "Boeing announces further delay to Australia's Wedgetail aircraft". Archived 28 February 2007 at the Wayback Machine "Jane's Information Group", 28 November 2006.
- "'Wedgetail' Airborne Early Warning and Control Aircraft: Project Management" (PDF). www.anao.gov.au. Australian National Audit Office. March 2004. Retrieved 27 December 2020.
- "AIR 5077 - Project Wedgetail" Archived 27 February 2012 at the Wayback Machine. Defence Materiel Organisation
- "Defense & Security Intelligence & Analysis: IHS Jane's - IHS". janes.com. Archived from the original on 29 April 2012. Retrieved 7 March 2016.
- "Defense & Security Intelligence & Analysis: IHS Jane's - IHS". janes.com. Archived from the original on 29 April 2012. Retrieved 7 March 2016.
- "Defense & Security Intelligence & Analysis: IHS Jane's - IHS". janes.com. Archived from the original on 16 February 2013. Retrieved 7 March 2016.
- "Wedgetail Aircraft Delivered to Boeing Australia for Airborne Early Warning and Control Modifications" (Press release). Boeing. 16 January 2006. Retrieved 27 December 2020.
- "BAE Systems Signs Wedgetail Agreement With Boeing" (Press release). BAE Systems. 17 May 2001. Retrieved 28 December 2020.
- Nelson, Brendan "Wedgetail Project" Archived 27 August 2006 at the Wayback Machine. Australian Minister for Defence press release.
- "Radar down under Australia grapples with the Wedgetail AEW&C program". C4ISR Journal, 4 May 2007.
- "Minister Tours Wedgetail Facility at BAE Systems Australia" Archived 25 May 2009 at the Wayback Machine. Australian DoD press release.
- "Boeing Delivers 2 Wedgetail AEW&C Aircraft to Royal Australian Air Force" Archived 26 June 2011 at the Wayback Machine. Boeing, 26 November 2009.
- "Boeing Wedgetail Aircraft Accepted Into Royal Australian Air Force Fleet" Archived 26 August 2011 at the Wayback Machine. Boeing, 5 May 2010.
- Waldron, Greg. "RAAF receives final Wedgetail AEW&C aircraft" Archived 10 June 2012 at the Wayback Machine. Flight International, 5 June 2012.
- "Wedgetail AEW&C Aircraft has achieved IPC" Archived 24 April 2013 at the Wayback Machine. airforceworld.com
- Branagh, Ellen (2 April 2014). "Navy submarine joins search for jet's black boxes". Scotsman.
- "Islamic State: Royal Australian Air Force planes complete first flights over Iraq as part of international coalition against 'apocalyptic death cult'". Australian Broadcasting Corporation. 2 October 2014. Archived from the original on 2 October 2014. Retrieved 2 October 2014.
-  Archived 23 April 2018 at the Wayback Machine - Aviation Australia, 12 November 2015
- Wedgetail Endurance Mission Archived 8 February 2015 at the Wayback Machine - Airforce.gov.au, 13 January 2015
- Air Task Group Wedgetail Achieves 100% Mission Success Rate in the Middle East Archived 24 April 2016 at the Wayback Machine. Defence.gov.au, 8 April 2016
- http://www.flightglobal.com/news/articles/raafs-e-7a-wedgetails-achieve-foc-412730/ Archived 26 May 2015 at the Wayback Machine RAAF's E-7A Wedgetails achieve FOC] - Flightglobal.com, 26 May 2015
- Peace Eagle (PE) - Turkish Airborne Early Warning & Control System Archived 24 September 2010 at the Wayback Machine, Havelsan.
- "Team World" Archived 27 February 2009 at the Wayback Machine. Boeing Frontier's magazine, August 2007.
- "Boeing Installs MESA Antenna on First Peace Eagle Aircraft" Archived 5 September 2008 at the Wayback Machine. Boeing, 2 March 2006.
- "Boeing Successfully Completes First Test Flight of AEW&C Peace Eagle Aircraft" Archived 24 January 2008 at the Wayback Machine, Boeing, 6 September 2007.
- "Boeing Supplier Turkish Aerospace Industries Completes 1st In-Country Modification of Peace Eagle AEW&C Aircraft" Archived 12 June 2008 at the Wayback Machine. Boeing, 4 June 2008.
- "Israel sends Turks EW systems despite rift." Archived 12 March 2013 at the Wayback Machine spacedaily.com
- BEKDIL, BURAK EGE (8 February 2014). "Boeing Delivers 1st Spy Plane To Turkey; Faces Penalties". www.defensenews.com. Gannett Government Media. Retrieved 8 February 2014.
- "TSK yeni yıldızı Barış Kartalı'na kavuştu" Archived 22 February 2015 at the Wayback Machine. Hürriyet, 21 February 2014.
- "Turkey takes delivery of military aircraft" Archived 22 February 2015 at the Wayback Machine. Today's Zaman, 21 February 2014.
- "First Airborne Early Warning & Control aircraft of the Peace Eagle Project, Kuzey (North) was taken into inventory" Archived 11 March 2014 at the Wayback Machine. Turkish Air Force
- "Boeing Delivers Last AEW&C Aircraft to Turkey". Defense News, 9 December 2015.
- "South Korea picks Boeing for surveillance planes Archived 24 September 2015 at the Wayback Machine." Reuters. 8 November 2006.
- "S. Korea drops IAI, keeps Boeing in $2 bln plane deal[permanent dead link]." Reuters. 3 August 2006.[dead link]
- "Korea gets 1st early warning aircraft". The Korea Times. 1 August 2011. Archived from the original on 11 August 2011. Retrieved 2 August 2011.
- "S. Korea to have 1st early warning aircraft". The Korea Times. 2 March 2011. Archived from the original on 4 March 2011.
- http://boeing.mediaroom.com/index.php?s=43&item=2071 Archived 18 January 2012 at the Wayback Machine "Boeing Delivers 2nd Peace Eye AEW&C Aircraft to Republic of Korea Air Force, Boeing Defense"]. Boeing, 13 December 2011.
- "공군, 16일부로 피스아이 3대 보유". naver.com. Archived from the original on 8 January 2016. Retrieved 7 March 2016.
- Gary Parsons, Gary. "Boeing Delivers Final Peace Eye to Korea" Archived 6 November 2012 at the Wayback Machine. Key Publishing via key.aero, 31 October 2012.
- Chuter, Andrew (2 October 2018). "Britain confirms talks with Boeing over potential $2.6B Wedgetail aircraft buy". Defense News. London. Archived from the original on 6 October 2018. Retrieved 6 October 2018.
- Chuter, Andrew (17 October 2018). "Lawmaker accuses British defense minister of Boeing favoritism". Defense News. London. Archived from the original on 29 October 2018. Retrieved 29 October 2018.
- Hoyle, Craig (24 October 2018). "Saab voices opposition to UK Wedgetail buy". Flight Global. London. Archived from the original on 29 October 2018. Retrieved 29 October 2018.
- "Wedgetain to be RAF's new early warning radar aircraft". Royal Air Force. 22 March 2019. Archived from the original on 22 March 2019. Retrieved 22 March 2019.
- Perry, Dominic (13 May 2019). "RAF to get second-hand jets as part of Wedgetail buy". Flight Global. Retrieved 19 January 2020.
- Hoyle, Craig (20 May 2020). "Boeing picks STS for UK Wedgetail conversions". www.flightglobal.com. Retrieved 22 May 2020.
- Quin, Jeremy (8 June 2020). "AWACS: Procurement:Written question - 51653". UK Parliament. Retrieved 9 June 2020.
- "Boeing Grows RAF Wedgetail Industry Team". Key.aero. Key Publishing. 1 June 2020. Retrieved 13 August 2020.
- "U.S. MMA Decision Reverberates in Italy". Aviation Week & Space Technology, 21 June 2004.
- "Northrop Grumman E-2D Back in Competition for UAEAF AEW Platform"[dead link]. 22 February 2007.
- Menon, Praveen (27 March 2014). "UPDATE 2-Qatar buys helicopters, missiles in $23 bln arms deals". Reuters. Archived from the original on 24 September 2015. Retrieved 30 June 2017.
- Everstine, Brian W. (24 February 2021). "PACAF Boss Calls for E-7s to Replace Aging E-3 AWACS". Air Force Magazine. Retrieved 25 February 2021.
- "RAAF's Wedgetail Squadron marks history by celebrating battle honours" Archived 11 April 2013 at the Wayback Machine. Australian Department of Defence, 30 November 2012.
-  Archived 11 December 2013 at the Wayback Machine. 9 July 2013.
- "WON By Default: Korea's E-737 AWACS". Defense Industry Daily. 11 October 2016. Archived from the original on 2 April 2019. Retrieved 2 April 2019.
- "Turkey receives final Peace Eagle AEW&C platform". janes.com. Archived from the original on 5 January 2016. Retrieved 28 December 2015.
- "737 Airborne Early Warning and Control" (PDF). Boeing. Archived from the original (PDF) on 29 June 2011. Retrieved 5 August 2011.
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