Production and assembly of second prototype (TS4) of Turkey’s first domestic helicopter engine TEI-TS1400 has progressed following initial operation of the first prototype.
The turboshaft engine for indigenous Gökbey T625 multi-role helicopter is designed by Turkish Aerospace Industries' (TAI) engine manufacturing subsidiary, TUSAŞ Engine Industries (TEI). The T625 prototype earlier used a pair of LHTECs, CTS800 4-AT turboshaft engines that have 1,373 shaft horsepower each, created jointly by Rolls-Royce and Honeywell.
The TS1400 is also expected to be used on Hürkuş training aircraft and T129 Tactical Reconnaissance and Attack Helicopter (ATAK), as well as its derivatives developed by TAI.
The project to produce the engine was officially started under the coordination of the Presidency of Defense Industries (SSB) on March 8, 2017.
The TS3, the first prototype of the TEI-TS1400 engine, was delivered to TAI at a ceremony held in December 2020.
TAI said in a statement that the first ignition and start-up of the TS4 engine were successfully carried out on January 6, 2021. During g the tests, the TS4 engine was brought to the 'ground idle' power level and an important step was achieved in the project.
The statement emphasized that the tests of the TS4 engine were carried out in a new "national turboshaft engine test bench" designed and developed entirely by the TEI engineers and technicians, and a total of four engine test units will be used within the scope of the project to carry out the certification studies quickly.