13-Feb-2012 Source: Helios
HELIOS Hubschraubertransport GmbH presents the patented new SilentEcoWing â€“ System to producers and experts at Heli Expo 2012 in Dallas, Texas. The project was inspired by nature: A bird gliding almostÂ soundlessly. â€žWe reflected how to minimize the noise generated at the rotor blade tipsâ€œ, said Mr. Walter Enthammer, the General Manager. The result of this mechnical innovation: Higher efficiency and noise reduction. A simple and economic implementation of the blade tip splits up the air flow. The vortexes diminish and the drag decreases considerably.
Wind tunnel test at Technical University Munich confirmed the benefit impressively. CFD calculations are in progress in the U.S. toÂ be able to show the amazing effect in computer simulations. Walter Enthammer is curious about the reactions in Dallas. 600 exhibitors are expected to come to this worldâ€™s largest trade fair from 11th to 14th of February.