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TEI, which has contributed many breakthroughs in the field of aviation engines to Türkiye's aviation adventure, is a joint venture company established in 1985 to manufacture, assemble and test parts for F110. Today, TEI ranks among the world's major players in the fields of parts and module manufacturing, engine assembly, testing and maintenance, repair, overhaul, engine design and product development. TEI has contributed to global aviation with 5,000+ parts manufactured for 50+ international military and commercial engine programs, has taken part in the maintenance, testing and assembly of hundreds of engines, and has become Türkiye's leading engine company with the aviation engines it has designed, developed, manufactured and operated.
With the Turboshaft Engine Development Project (TMGP), which is being carried out under the leadership of the Department of Engines and Powertrain Systems of the Presidency of Defense Industries (SSB), on the one hand, Turkey's gas turbine engine design, development and test infrastructures are being acquired, and on the other hand, activities to develop an indigenous and national engine with 1400 shp power and type certification, which can be integrated into the Indigenous Helicopter, are continuing. The TEI-TS1400 Turboshaft Engine developed by TEI within the scope of the project made its first flight in April 2023 on GÖKBEY, Turkey's first indigenous utility helicopter developed by Turkish Aerospace.
TEI-PD170 Turbodiesel Aviation Engine, which is the output of the project initiated under the auspices of the SSB to develop Turkey's first indigenous and national aviation engine to meet the power needs of MALE (Medium Altitude Long Endurance) class unmanned aerial vehicles, has a ceiling altitude of 45,000 ft. The TEI-PD170 engine made its first flight with the ANKA platform on December 27, 2018 and continues its flights with AKSUNGUR and BAYRAKTAR TB3 platforms. TEI-PD170 Turbodiesel Aviation Engine has the records of longest flight in a single sortie of 45 hours and 40,000 ft. altitude with AKSUNGUR, and powered Bayraktar TB3, the first UCAV in aviation history to take off and land from a short-runway ship.
TEI-PG50 2-stroke boxer-type gasoline unmanned aerial vehicle engine is Turkey's first 2-stroke aviation engine in this power class. The TEI-PG50 engine has the best altitude capability of its group and is capable of operating at altitudes up to 30,000 ft. The TEI-PG50 engine, which stands out with its higher power, higher power-to-weight ratio, electronic engine control system, injection and ignition systems, and fast technical and logistic support features offered by TEI, compared to existing unmanned aerial vehicle engines used for similar purposes, has been successfully flying on TEI's experimental platform.
Taking Turkey's Turbofan Engine needs into consideration, TEI is developing the first indigenously designed national TEI-TF6000 Turbofan Engine with 6000 lbf dry thrust. Designed to support the afterburner version, the engine will provide more thrust with the afterburner. This engine program is designed for technology acquisition and demonstration on the way to the engine of the National Fighter Aircraft - KAAN. The TEI-TF6000 Turbofan Engine and its derivatives to be developed from the core engine can be used in different national platforms such as manned-unmanned combat aircraft, business jets, regional passenger aircraft, civil-military helicopters with a take-off weight of 10 tons, assault boats and power plants.
Providing solutions to Turkey's turbofan engine needs, TEI is developing the TEI-TF10000 Turbofan Engine, the first indigenously designed national turbofan engine with a power of 10,000 lbf (6,000 lbf dry thrust) with afterburner. This project is of critical importance both to meet the needs of the country and to gain technology on the way to the engine of the National Fighter Aircraft KAAN. The TEI-TF10000 Turbofan Engine is expected to power many manned and unmanned aviation platforms. Within the scope of the TEI-TF10000 project, an afterburner turbofan engine and related critical technologies will be developed indigenously for the first time in Turkey.
TEI develops turbojet and turboprop engines for the gas turbine requirements of competitive Unmanned Aerial Vehicles (UAVs), which are expected to take their place in the national market primarily and in the international market in the long term. TEI's R&D activities within this scope have been ongoing since 2004. Within the scope of these studies, TEI-TJ90 turbojet engine was developed. The controls of these engines are carried out by means of electronic control units developed entirely with indigenous capabilities. In the project, which is being carried out with the support of TEYDEB, the first flight test was carried out on June 5, 2013, and engine development tests are ongoing.
Utility Helicopter Project (UHP) was initiated with the Executive Committee of the Defense Industries deicion taken on December 5, 2007 to meet the 109 general purpose helicopter requirements of 6 users, namely Land Forces Command, Air Forces Command, Gendarmerie General Command, Special Forces Command, General Directorate of Security and General Directorate of Forestry. For 109 helicopters, 218 on-platform engines, min. 18 auxiliary engines, a total of 236 TEI-produced T700-TEI-701D turboshaft engines with a configuration identical to GE Aviation's T700-GE-701D turboshaft engine will be used. The UHP Contract was signed in Ankara on 21.02.2014 between Turkish Aerospace and TEI in the presence of SSB officials.
Manufacturing of 43 different LEAP engine parts at TEI will not only reinforce the domestic manufacturing operations and create additional employment opportunities, but also play an important role in enhancement of the exports capacity and competitive power of Turkey in the aviation products on global scale. With its investments during the project, TEI has added the new-generation manufacturing technologies to its existing extensive and advanced manufacturing technologies, increasing its qualified labor force and quality.
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