RuAviation

Aerosila has received the type certificate for the AV-112-114 composite propeller designed for the TV7-117ST-01 turboprop engine of the Il-114-300 regional transport aircraft. The Federal Air Transport Agency of Russia (Rosaviatsiya) issued the certificate, confirming the completion of a multi-year development program that included design, ground and flight testing, and validating the operational readiness of the six-blade, 3.9-meter (12.8 ft) propeller.

The propeller was developed jointly by NPP Aerosila and UEC-Klimov, a division of the United Engine Corporation. The certification was formally presented to the Aerosila team at the production facility in Stupino, near Moscow, where the propellers are manufactured.

“Joint development of system parameters ensured optimal integration and efficiency of the powerplant. Coordinated engineering efforts achieved seamless interaction between the propeller and the engine, directly enhancing aircraft performance, fuel efficiency, and environmental characteristics,” UEC stated.

As part of the certification program, the AV-112-114 — a feathering, reversible-pitch, hydraulically actuated propeller — underwent an extensive test campaign. The trials included exposure to extreme temperatures and pressures, lightning strike simulations, bird and foreign object ingestion tests, fatigue and strength evaluations, and functional validation of the automatic propeller control system. More than 80 test flights confirmed the propeller’s reliability and suitability for operations in harsh meteorological conditions, including northern climates.

According to UEC, the issuance of the AV-112-114 certificate marks the first new certified Russian propeller since 2002, ending a long period without new propeller introductions. Final certification of the Il-114-300 aircraft is expected by the end of this year or early next year, after which the United Aircraft Corporation (UAC) will be able to begin deliveries of the aircraft to airlines for commercial passenger operations.