Ground run-up enclosure GRE

ground run-up enclosure
ground run-up enclosure
ground run-up enclosure
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Description

Ground Run-up Enclosure VALIS GREs are developed from years of experience in noise reduction, structural engineering and airport supplies. The features described next work together to maximize noise reduction while improving airflow to minimize downtime for testing operations. Intake angle and shape VALIS GRE is U shaped and totally envelopes the aircraft. The sidewalls in the enclosure are slightly angled in order to reduce interference and turbulence under crosswinds. This means the open end of the enclosure is larger than the bottom end. The walls of the structure are inclined at the intake side to reduce noise level transition effects. Flat inner walls The walls of the enclosure are designed to be perfectly flat, thus eliminating the accumulation of dust, snow and other light debris in eventual crevices or gaps. These flat walls do not hinder noise performance as primary reflection is low, due to our highly absorbent acoustic panels. Noise diffraction controlling device – DCDT VALIS GRE's feature is our patented noise diffraction controlling devices. These devices absorb sound at the top of the barrier and through their shape reduce the wave diffraction of sound, improving the slope angle of the noise shadow of the barrier.

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