Tusaş Engine Industries

Tusaş Engine Industries

Headquarters complex in Eskişehir
Trade name	TEI
Company type	Incorporated company
Industry	Aerospace
Founded	1985; 40 years ago (1985)[1]
Headquarters	Eskişehir , Turkey
Key people	Mahmut Faruk Akşit (CEO)
Number of employees	4000[2]
Website	tei.com.tr/en

Tusaş Engine Industries (TEI; Turkish: TUSAŞ Motor Sanayii A.Ş.) 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.^[3][4]

TEI was founded in 1985 as a joint venture between Turkish Aerospace Industries (50.5%) and GE Aerospace (46.2%),^[1] the Turkish Armed Forces Foundation,^[5] and the Turkish Aeronautical Association(3.3%).^[6][7]

History

The company started with component manufacturing for the General Electric F110 engines in the F-16 aircraft of the Turkish Air Force.^[8] 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.^[9] 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.^[2] 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.^[10]

Products and projects

Indigenous engines

TEI TS1400 Engine

• TEI-PD170 turbodiesel aviation engines for the TAI Anka UAVs^{[11][12][13][14]}
• TEI-PD222ST turbodiesel aviation engine^[15]
• TEI-PG50 2-stroke gasoline aviation engine^[16]
• TEI-PG50S 2-stroke gasoline aviation engine^[17]
• TEI-TJ300 turbojet medium range anti-ship missile engine^[18]
• TEI-TJ90 turbojet engine for UAVs, including TAI Şimşek target drone^[19][20]
• TEI-TJ35 turbojet engine^[21]
• TEI-TP38 turboprop engine^[22]
• TEI TS1400 turboshaft aviation engine for rotary wing applications such as the TAI T625 Gökbey, T-129 ATAK^[23]
• TEI TS3000 turboshaft aviation engine for rotary wing applications such as the TAI T925, TAI T929 ATAK 2^[24]
• TEI-TF6000 turbofan engine^[25]
• TEI-TF10000 turbofan engine^[26]
• TEI-TF35000 turbofan engine^[27]

Licensed engines

• General Electric T700 (T700-TEI-701D variant) for the T-70, a local variant of the S-70 Black Hawk^[28][29][30]
• General Electric F110 engines (Original Equipment Manufacturer)^[31]
• LHTEC T800 turboshaft engines for rotary wing applications such as the T-129 Atak^{[32][33][better source needed]}

Parts and modules

• CFM International LEAP^[34]
• General Electric GEnx^[35][36]
• CFM International CFM56^[37]
• General Electric GE90^[38]
• General Electric GE9X^[39]
• General Electric T700 (T700-TEI-701D variant)^[28]
• Europrop TP400 (Engine of the Airbus A400M Atlas)^[40]
• Also for many other engines^[41]

References

1. "TEI:History Archived 2022-12-29 at the Wayback Machine." TEI website.
2. "TEI'nin bu yılki ihracat hedefi 450 milyon dolar" (in Turkish). Anadolu Agency. 6 February 2025. Retrieved 2 October 2025.
3. "Official site of TEI". www.tei.com.tr. Official site of TEI. Archived from the original on 3 June 2023. Retrieved 15 July 2021.
4. "About Us". www.tei.com.tr. Official site of TEI. Archived from the original on 29 December 2022. Retrieved 10 August 2021.
5. "Turkish Armed Forces Foundation, TUSAS ENGINE INDUSTRIES INC. – TEI". Archived from the original on 2020-09-07. Retrieved 2017-01-31.
6. "VERICUT probes aero engine machining efficiency". Archived from the original on 2019-08-10. Retrieved 2017-01-25.
7. "Machinery - EOS process monitoring system completes pilot testing". www.machinery.co.uk. 30 August 2016. Archived from the original on 5 October 2017. Retrieved 17 July 2021.
8. "F-16 Air Forces - Turkey". www.f-16.net. Archived from the original on 2022-04-12. Retrieved 2021-07-17.
9. "Türk savunma sanayisi 10 yıla 13 havacılık motoru sığdırdı" [Turkish defense industry fits 13 aviation engines into 10 years]. Anadolu Agency. 10 March 2024.
10. "Indigenous TF35000 engine to power Türkiye's 5th generation KAAN fighter jet". Türkiye (newspaper). 17 May 2025. Retrieved 2 October 2025.
11. "TEI-PD170". www.tei.com.tr. Tusaş Engine Industries (TEI). Retrieved 15 July 2021.
12. "Janes | Latest defence and security news". Janes.com. Archived from the original on 2020-09-06. Retrieved 2021-07-17.
13. Algemeiner, The. "Analysis: Turkey's Fruitless Quest for Armed Drones". Algemeiner.com.
14. "Turkey seeks to develop local engines for UAVs and tank - Latest News". Hürriyet Daily News. 26 November 2013. Archived from the original on 17 July 2021. Retrieved 17 July 2021.
15. "TEI-PD222ST". Tusaş Engine Industries (TEI). Archived from the original on 10 August 2021. Retrieved 15 July 2021.
16. "TEI-PG50". Tusaş Engine Industries (TEI). Retrieved 15 July 2021.
17. "TEI-PG50S". Tusaş Engine Industries (TEI). Retrieved 15 July 2021.
18. "TEI-TJ300". Tusaş Engine Industries (TEI). Archived from the original on 10 August 2021. Retrieved 15 July 2021.
19. "TEI-TJ90". Tusaş Engine Industries (TEI). Archived from the original on 10 August 2021. Retrieved 15 July 2021.
20. "View topic - Turkish Engine Industries Develops first TurboJet Engine - Modern Military Aircraft". www.f-16.net.
21. "TEI-TJ35". Tusaş Engine Industries (TEI). Archived from the original on 10 August 2021. Retrieved 15 July 2021.
22. "TEI-TP38". Tusaş Engine Industries (TEI). Archived from the original on 10 August 2021. Retrieved 15 July 2021.
23. "TEI-TS1400". Tusaş Engine Industries (TEI). Retrieved 15 July 2021.
24. "TEI-TS3000". Defence Turkey. Retrieved 18 September 2025.
25. "TEI-TF6000 Turbofan Engine". Tusaş Engine Industries (TEI).
26. "Milli Muharip Uçak için yerli motorda kritik süreç". airporthaber.com (in Turkish). 2023-03-20. Retrieved 2023-03-21.
27. GÜLEŞ, Okan. "TUSAŞ'tan Milli Muharip Uçak açıklaması: 35 bin pound güçte motor yapabiliriz". TGRT Haber. Archived from the original on December 12, 2024. Retrieved June 18, 2024.
28. "T700-TEI-701D". Tusaş Engine Industries (TEI). Retrieved 15 July 2021.
29. Bekdil, Burak Ege (August 8, 2017). "New $3.5B Deal Paves Way for Turkish-made Black Hawks". Defense News.
30. "Steps taken to support Saudi Arabia's defence industry efforts". December 28, 2016.
31. "F110 Engine". Tusaş Engine Industries (TEI). Archived from the original on 10 August 2021. Retrieved 15 July 2021.
32. Perry, Dominic (2016-05-13). "LHTEC aims for Turkish assembly of CTS800 engine". Flight Global.
33. "Turkey keen on attack helicopter program despite snags - Latest News". Hürriyet Daily News. 14 November 2013.
34. "LEAP". www.tei.com.tr. Archived from the original on 2021-08-10. Retrieved 2021-07-15.
35. "GEnx". www.tei.com.tr. Archived from the original on 2021-08-10. Retrieved 2021-07-15.
36. "GE and TAI Extend Tusas Engine Industries, Inc. Joint Venture for Another 25 Years". GE Aviation. 29 January 2010. Archived from the original on 6 September 2015.
37. "CFM56". www.tei.com.tr. Archived from the original on 2021-08-10. Retrieved 2021-07-15.
38. "GE90". www.tei.com.tr. Archived from the original on 2021-08-10. Retrieved 2021-07-15.
39. "GE9X". www.tei.com.tr.
40. "TP400-D6". www.tei.com.tr. Retrieved 28 March 2025.
41. "TEI - Other International Engine Programs". TEI.^{[dead link]}