Airbus RACER High Speed Demonstrator Flight Tests

doi:10.4050/F-0081-2025-0182

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Airbus RACER High Speed Demonstrator Flight Tests

Paul Eglin, Martin Embacher, Damien Desvigne, Enric Roca-Leon, Airbus Helicopters

https://doi.org/10.4050/F-0081-2025-0182

Abstract:
Developed in the frame of the European Clean Sky 2 program, the RACER High Speed Helicopter Demonstrator of Airbus performed its maiden flight on April 25th, 2024. In the continuity of the previous high-speed demonstrator X3 (1st flight in 2010) the RACER is a 7/8t (15000 / 18000 lb) class compound helicopter powered by two SHE Aneto-1X engines, including a wing and two propellers. The tail rotor is removed as the two propellers control the yaw axis by differential thrust. At flight 07, with its initial default settings, it reached a true airspeed of 227 kts in level flight, exceeding its objective of 220 kts.