Tusaş Engine Industries (TEI; ) is an aerospace engine manufacturer and a design center for the production of engines and engine parts for commercial and military aircraft. It is based in Eskişehir, Turkey.
TEI was founded in 1985 as a joint venture between Turkish Aerospace Industries (50.5%) and GE Aerospace (46.2%), the Turkish Armed Forces Foundation, and the Turkish Aeronautical Association(3.3%). History The company started with component manufacturing for the General Electric F110 engines in the F-16 aircraft of the Turkish Air Force. Since 2010, great importance has been given to domestic design and a large amount of resources have been allocated. TEI designed 13 engines in a 10-year period between 2014 and 2024. Flights were carried out with 7 of these engines. 6 of them entered mass production. TEI is developing Türkiye's first turbofan engine, TEI-TF6000. The company's long-term goal is for Türkiye to become a self-sufficient country in the field of aviation engines.
TEI's employee count was 1,200 in 2014. This number increased to 4,000 in 2025. In 2014, 70 percent of employees were blue-collar. By 2025, 57 percent of employees were white-collar. In 2024, the company achieved $400 million worth of exports. In 2025, the company announced that it would produce the TF-35000, which will be the engine for Türkiye's domestically produced TAI Kaan fighter jet. Products and projects Indigenous engines
TEI-PD170 turbodiesel aviation engines for the TAI Anka UAVs TEI-PD222ST turbodiesel aviation engine TEI-PG50 2-stroke gasoline aviation engine TEI-PG50S 2-stroke gasoline aviation engine TEI-TJ300 turbojet medium range anti-ship missile engine TEI-TJ90 turbojet engine for UAVs, including TAI Şimşek target drone TEI-TJ35 turbojet engine TEI-TP38 turboprop engine TEI TS1400 turboshaft aviation engine for rotary wing applications such as the TAI T625 Gökbey, T-129 ATAK TEI TS3000 turboshaft aviation engine for rotary wing applications such as the TAI T925, TAI T929 ATAK 2 TEI-TF6000 turbofan engine TEI-TF10000 turbofan engine TEI-TF35000 turbofan engine
Licensed engines General Electric T700 (T700-TEI-701D variant) for the T-70, a local variant of the S-70 Black Hawk General Electric F110 engines (Original Equipment Manufacturer) LHTEC T800 turboshaft engines for rotary wing applications such as the T-129 Atak
Parts and modules CFM International LEAP General Electric GEnx CFM International CFM56 General Electric GE90 General Electric GE9X General Electric T700 (T700-TEI-701D variant) Europrop TP400 (Engine of the Airbus A400M Atlas) Also for many other engines
References