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.
📑 ➖➖➖ The 737 AEW&C has also been selected by the Turkish Air Force (under "Project Peace Eagle", Turkish: Barış Kartalı, designated E-7T).
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 the 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.

▪️🇺🇸 Manufacturer Boeing Defense, Space & Security (modifications)
Boeing Commercial Airplanes (original 737 Next Generation design)
▪️👤 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)
▪️⬇️ 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)

Ref: Wikipedia.