EASA Launches Excel Tool to Assess Noise Levels of Light Propeller Aircraft

The European Union Aviation Safety Agency has released a new Excel-based tool, ENCODE, to help calculate noise levels and compliance for light propeller-driven aeroplanes under ICAO standards.

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The European Union Aviation Safety Agency (EASA) has introduced a new tool designed to assess the noise levels of light propeller-driven aeroplanes. Named ENCODE, an acronym for "EASA's Noise Compliance Demonstration Evaluator," the tool is built as an MS Excel spreadsheet. It enables users to calculate noise levels and confidence intervals based on data collected during noise tests conducted in accordance with Chapter 10 of ICAO Annex 16, Volume I.

ENCODE validates each individual test run against limitations for environmental conditions and performance, ensuring that the measurements meet the required standards. The tool is expected to simplify compliance demonstration for manufacturers and operators of light propeller aircraft, providing a standardized method for noise assessment.

The release of ENCODE aligns with EASA's ongoing efforts to harmonize noise certification procedures and reduce environmental impact. By offering a free, accessible tool, the agency aims to facilitate adherence to international noise regulations without imposing additional burdens on smaller aviation stakeholders.

The tool is available for download from EASA's official website. Further details on its application and technical specifications can be found in the accompanying documentation.