Since its launch in 1977, 28 versions of the Arriel family have become the benchmark in their classes. The Arriel 1 powers the Eurocopter BK 117 C2, Ecureuil AS 350 B2, EC 145/ UH-72A “Lakota” S 76 C. , Generating Power and Performance > Missions • > Simple design, easy maintenance • 5 wholly replaceable modules (within the same version). > Low direct maintenance costs • TBO of 3,600 hours ‘on condition’ on Module 1 and 7,200 hours on modules 2 and 4. > 25 years of outstanding reliability. > 35 Million operating hours. > 10,000 engines delivered.

Compressor stage 2 stage gas generator turbine Turbomeca is dedicated to the design, production, sale and support of gas turbines for helicopters. Turbomeca offers the world’s most comprehensive range of engines, along with strong industrial cooperation associated to close-by customer services structures. Dedicated to 2,350 customers in 155 countries, Turbomeca provides a proximity service thanks to its 16 sites, 26 Maintenance Centers, 24 Repair & Overhaul Centers and 90 Field representatives and Field technicians. Power output shaft Annular combustion chamber • Centrifugal injection. Single-stage...