Hervé Gontier

& Geometry

Tobias Weber


Daniel Schulze

& Acoustics


It all starts with the aerodynamics

During the first phase of developing a rotor blade, we draft an aerodynamic design based on the customer’s requirements. This design is used to calculate the rotor performance as well as the initial blade and system loads. Our team uses a comprehensive profile database and their experience in the development of rotor blades for all performance categories and areas of application. Eventually this results in a design that is tailored to the customer’s exact requirements.

Optimizing the model

We gradually optimize the aerodynamic design in a series of iterative loops, including results of load calculations and structural development, until our solution meets the customer’s needs in terms of performance, load levels and blade area.

Checking aeroelastic characteristics

Long, slim rotor blades in particular become aerodynamically unstable when exceeding a certain speed, and this must be avoided absolutely. To calculate this upper speed limit, we use high-performance software and modify the rotor blade as many times as necessary until we have proven that is has adequate safety margins in all critical operating modes.

Developing blade geometry

The final blade geometry is used to manufacture a master plug, for which we use cutting-edge software tools. And yet it is the many years’ experience of our design engineers that makes all the difference. They are the reason we are able to meet rigorous demands in terms of smooth blades that have constant curvature and allow easy de-moulding.

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