Due to the growing number of inquiries concerning complete drive units for Unmanned Aerial Systems (UAS), the German manufacturer of 2-stroke and Wankel engines, Sky Power GmbH, has intensified its cooperation with Mejzlik Propeller from the Czech Republic. The objective is the development of propellers coordinated individually to the engine and the customer application.
In the world of unmanned aviation, Mejzlik Propeller is well known for its work. All propellers are manufactured from carbon fiber and can be adapted
application and the outputs to be achieved. Besides the size and the pitch, the number of blades, the weight, the carbon fiber material as well as the surface can also be adapted. “The propeller must perfectly match the
engine, as only this way can an efficient utilization of the entire drive unit be ensured”, explained Jan Hruška, Business Development Manager at Mejzlik Propeller.
Furthermore, at Mejzlik Propeller particular attention is paid to the quality. “Our customers sometimes move sums running into millions in the air, if one counts the UAS and the payload together.
Apart from this, in future flying over groups of people will become routine. Flying must, therefore, be absolutely safe. For this reason, the quality of the propeller must be given special attention, in order to ensure safe flying”, stressed Hruška. That’s why various propeller tests are carried out before delivery. Besides balance tests, inner structure tests, optional RPM tests
Apart from that, for Sky
manufacturers can provide these, as the tests are complex”, stated Schudt knowingly. The velocity, the flight altitude, the rotational speed as well as the environmental conditions influence the performance of a propeller
and consequently also that of the entire propulsion unit. “Based on these details and the computation models, we can calculate and develop the right propeller for every application”. To design an appropriate propeller, we
also consider the data that we already have from the propellers previously designed and measured. Based on these measurements and our experience, we can adapt the design to your requirements and give you a basic
idea, how the respective propeller behaves”, confirmed Hruška. And Schudt added: “This experience is important for us, in order to provide our customers with a perfectly coordinated drive unit. Because this is
what our customers expect”.
Both companies will in future work more closely together on customer projects. “In individual projects, we will fall back on the experience of our Czech colleagues very early on, if our customers also want to adopt this
approach”, stated Schudt. In this
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