The Arrius is a French turboshaft engine family developed by Turbomeca (now Safran Helicopter Engines) since its first run in 1981. Spanning two generations, these engines deliver between 450 and 750 shp, powering over 4,400 light single- and twin-engine helicopters like the Airbus H135 and Bell 505. Known for a high power-to-weight ratio and a 5,000-hour TBO, the fleet has surpassed 10 million flight hours globally.
The Arrius lineage is divided into two distinct generations defined by their control systems and performance tiers. The first generation (Arrius 1), introduced in 1981, utilized traditional hydro-mechanical controls and produced between 450 and 520 shp for early light helicopters like the AS355. The second generation (Arrius 2) represents a leap in technology, incorporating Full Authority Digital Engine Control (FADEC) and a modular design that boosts power up to 750 shp. These modern variants, such as the Arrius 2R and 2B2, offer significantly improved fuel efficiency and extended maintenance intervals of up to 5,000 hours.
11-Oct-19 - Safran celebrating 10 million flight hours for the Arrius family. Introduced by Turbomeca in 1996, more than 3,800 engines were delivered to 430 customers in 60 countries. Arrius covers 450-750 shp power range and flies in both single and twin-engine light helicopters #Arrius
02-Jul-19 - Safran extended partnership with Thai Aviation Industries (TAI) to support around 50 engines including the ones used by Royal Thai Air Force, Army, Navy, Police and Survey Department as the Makila (H225M) and Arriel (H125M, H145M, AS365N3+ and H155) and Arrius #engines
24-May-19 - Citicopter, a Maintenance, Repair and Overtaul (MRO) center in Moscow and part of Heliatica, named Safran official distributor in Russia and Commonwealth of Independent States for the Arriel and Arrius engine families #HeliRussia
06-Jul-18 - Under Government contract, Safran is responsible for maintaining several families of helicopter engines used by the French armed forces in a state of operational readiness #maintenance
