This page is intentionally written in English language so that it is not only accessible to German users. 

You need support? You figured out a problem? Please follow the steps below: 

  1. Check FAQ. Is there already a solution there?
  2. Search in forum. Has another user detected the same problem? Possibly it is always solved. 
  3. Post into the forum. Ask other users for a solution. The developers are also regularly on the forum. 
  4. Raise an issue. If there is still no solution or if there is an obvious bug, raise an issue. Only registered and logged-in users can raise issues.

Be advised: Your issues will be published.

Our ticket system can also be used to make suggestions for improvements!

rotorsim's partners


Outstanding controls for the EC 135. Pedals, Collective and a true-to-the-original stick, even motor-controlled on request. These controls are a must-have for anyone flying the EC 135 in the simulator.

The hardware for the home cockpit. simparts instruments are of exceptional quality. The complete program for an EC135 cockpit is available. And everything is basically plug & play with our EC 135 Pro.


The German Aerospace Center (DLR) is a renowned research institution. Our flight model is used in a simulator at the Institute for Flight Guidance. DLR pilots supported the development.

The ultimate flight experience in an EC 135 full flight simulator. Fully instrumented, motion platform, sensational projection. In Attikon in Switzerland, beginners as well as flight students and professionals get their money's worth.

Heli Simu France

Together with the French developer group HSF we bring the EC 135 for X-Plane into a new dimension. A highly detailed 3D model of HSF is combined with our unique system depth.

HR SimYard

The Austrian developers build high-quality freeware addons for FSX and PrePar3D. Thanks to our partnership, we mutually benefit from each other by exchanging 3D models for the EC 135.