VZLU is finishing its participation on the development of the new generation helicopter RACER

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The goal of the new generation suburban means of transport will be to combine the characteristics of V/STOL together with high cruising speed allowing to provide fast transport in densely populated areas and between them.

The gyrodyne RACER (high-speed hybrid helicopter) from Airbus Helicopters, designed with the experience gained by the Eurocopter helicopter demonstrator has in addition to the classic rotor also side wings with lateral pusher propellers. This arrangement allows to take off and land vertically, but also to reach a speed of more than 400 km / h.

The MUTR project (Multipurpose Test Rig), with the VZLU as project coordinator, is focused on the development of a test rig modification for the main gearbox of the newly developed gyrodyne RACER. The main gearbox is a key device in the drive of the gyrodyne, as it transmits power from the two turbo shaft engines to the main rotor and to the side pusher propellers.

The aim of the project MUTR is the modification of the test rig in order to testing of gyrodyne main gearbox while maintaining the ability to test newly designed conventional helicopter reducers. During the development of the RACER project, the requirements of the test rig gradually increased, which was also reflected in the development. At the end, the test rig is a powerful device that allows to test not only the normal travel modes, but also all emergency and overload conditions to which the main gyrodyne reducer may be exposed in operation.

The developed system contains a unique hydraulic torquer, a specially developed device that allows experimental verification of the properties of advanced hybrid drives with low energy consumption.

"The project has confirmed our design capabilities, ability of development and implementation of sophisticated test systems in aerospace applications, and it also proved our ability to apply advanced automated control, measurement and data acquisition technologies. The practical use of proven knowledge and know-how is oriented mainly to aerospace sector, but there is the possibility of wider application in other technical fields. The key feature of the design is the testing simplicity, high energy efficiency of the equipment and readiness to perform various types of test assignments. In addition, the design enables the expansion of the equipment's capabilities with regard to the customer's further needs.” Adds project manager Petr Pick from VZLU.

The project is being solved within the joint technological initiative Clean Sky 2,together 40 participants from 13 countries are participating in the development. The goal of VZLU is to apply the results not only within the CS2 Racer project, but also to offer a test rig for further development, for example, to domestic manufacturers of aircraft propulsion units.