Launched under the coordination of the Secretariat of Defence Industries, TEI-TS1400, Türkiye's first completely indigenous and national helicopter engine, continues to undergo maturation tests for serial production phase after its successful first manned flight on April 19, 2023. Prior to its maiden flight, our national engine successfully passed hundreds of tests mandated by both the TEI and Turksih Aerospace Airworthiness Authority, securing the authorization for manned flight. After undergoing hundreds of rigorous tests, our TS8 coded national engine, which completed its first flight without any issues, successfully passed the 6-hour attrition tests, conducted in accordance with EASA CS-E 740 Endurance test requirements, 15 times in a row.
In addition to more than a dozen CS-E 740 tests specifically designed to stress the engine, the ultimate power limits of our TS8 coded engine were tested according to the One Engine Inoperative (OEI) scenario, which pushed the engine to the limits, and our national engine demonstrated significant performance by achieving up to 1740 BG despite enduring hundreds of hours of rigorous testing before and after its first flight. The national engine continued to generate emergency-level power for 30 seconds under OEI conditions, complying with EASA regulations, and successfully repeated the test a second time. Through this historic test, our TEI-TS1400 engine has demonstrated that it can provide the full spectrum of power required by GÖKBEY helicopter, even under the most challenging conditions.
