What is the rotor speed of an EC135/H135 helicopter? I need the Eurocopter EC135's rotor speed to estimate its natural frequencies. I checked the helicopter TCDS but I only find there percentage values. For example for the P1 variant: 104% Max and 95% Min. This is percentage of what? In other helicopters I normally get concrete values in RPM.
The main rotor speed (100%) of the EC-135 is 395 RPM.