RuAviation

United Engine Corporation (ODK) has completed preparations for serial production of the TV7-117ST-01 turboprop engine, designed for the Il-114-300 regional aircraft. The engine is included in the active Production Organization Approval (POA) certificate, enabling deliveries for serial aircraft. The Il-114-300 equipped with TV7-117ST-01 engines is being publicly showcased for the first time at the Wings India 2026 international exhibition, according to ODK’s press office.

The TV7-117ST-01 was developed at ODK-Klimov in Saint Petersburg and certified in 2022. Subsequent supplemental type certificate (STC) approvals expanded its operational envelope. Engine service life and the lifespan of key components were increased following developmental and endurance testing.

By 2025, certification was completed to remove operational limitations. Use of the reverse thrust device during landing was approved, and engine performance under maneuvers and overload conditions was validated. The STC applies to both standard operational modes and high-load conditions encountered during intensive in-flight maneuvering.

In test Il-114-300 aircraft, TV7-117ST-01 engines have accumulated approximately 3,000 flight hours, completing over 400 flights as part of certification testing. All work followed a program developed by the aircraft manufacturer and approved by aviation authorities.

The TV7-117ST-01 is paired with the low-noise AV112-114 propeller. Maximum takeoff power reaches 3,100 horsepower. The powerplant delivers reduced specific fuel consumption in primary operational modes and is certified for operation in temperatures from −60 °C to +45 °C (−76 °F to +113 °F).

The engine incorporates an upgraded BARK-65SM digital controller, which manages both engine and propeller to optimize their performance. It ensures compliance with aircraft powerplant parameters across all flight phases, including takeoff, climb, and landing.

Parallel to serial production preparations, a comprehensive service and support infrastructure for the TV7-117ST-01 has been established in Russia. This includes spare parts supply, component repair, and operational support for in-service engines.