The TEI-TS1400 turboshaft engine is on display at SAHA Expo, highlighting Türkiye’s push to localize helicopter propulsion systems under the Turboshaft Engine Development Project (TEDP).
Developed by TUSAŞ Engine Industries (TEI), the TS1400 is Türkiye’s first indigenous helicopter engine and is designed to power the T625 GÖKBEY general purpose helicopter built by Turkish Aerospace. The engine program, launched on March 8, 2017, aims to reduce foreign dependency while supporting ongoing national helicopter programs.
The TS1400 completed its first flight integrated with the GÖKBEY platform on April 19, 2023, marking a key milestone in the program. Certification activities for full integration of the engine into the platform are currently ongoing.
The engine delivers 1,400 shaft horsepower at sea level under standard conditions, with a 30-second one-engine-inoperative (OEI) power rating of 1,660 SHP. It features a power-to-weight ratio of 8.54 SHP/kg, an output shaft speed of 23,000 rpm, and a service ceiling of 20,000 feet. The engine is equipped with a Full Authority Digital Engine Control (FADEC) system.
The TS1400 has been developed over an eight-year period by TEI engineering teams working across Eskişehir, Ankara and Istanbul, forming a core part of Türkiye’s broader effort to increase domestic content in aerospace systems.
TEI CEO Dr. Mahmut Faruk Aksit recently stated that the TS1400 is expected to enter service later this year, with deliveries of GÖKBEY helicopters powered by the indigenous engine planned for 2027–2028.
According to the Presidency of Defense Industries (SSB), a total of 83 GÖKBEY helicopters are planned for delivery across various users. Domestic content in the platform is currently above 70 percent and is expected to exceed 80 percent with the integration of the TS1400 engine.
The display of the TS1400 at SAHA Expo underscores its transition from development into operational deployment as Türkiye advances its indigenous aerospace propulsion capabilities.
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