As the most technologically-advanced helicopter in its class, the H155 is suited for a full range missions. Its five-blade Spheriflex main rotor and Fenestron® tail rotor combine the benefits of high speed and low noise, while state-of-the-art avionics reduce pilot workload and ensure ease of maintenance. The H155 is powered by two Turbomeca Arriel 2C2 engines with Full Authority Digital Engine Controls (FADEC).