TagAviation Noise & Emissions Symposium(6)

Washington Senate bill report proposing to allocate a portion of hazardous substance tax revenues from aviation fuel to create a state aircraft noise and air quality mitigation account. The account would fund grant programs through the Department of Commerce for mitigation strategies in aviation-impacted communities.

Aviation Noise & Emissions Symposium 2023 - May 1-3, 2023, UC Davis Philippe Masson - philippe.masson@airbus.com AIRBUS Amber https://anesymposium.aqrc.ucdavis.edu/ AIRBUS CONFIDENTIALAIRBUS CONFIDENTIAL Wake Energy Retrieval A large amount of kinetic energy is left behind aircraft in their wakes. Around 5% trip fuel & emissions reduction for a follower aircraft positioned in the smooth updraft Applies to sectors above 2000 NM Leader Follower Smooth updraft AIRBUS Amber AIRBUS CONFIDENTIALAIRBUS CONFIDENTIAL Wake Energy Retrieval Key parameters AIRBUS Amber AIRBUS CONFIDENTIAL Technology 5% fuel and CO2 proven savings AIRBUS Amber AIRBUS CONFIDENTIALAIRBUS CONFIDENTIAL https://docs.google.com/file/d/1FX7XxgihQQce2dzegHl2HOLP3hHsChsk/preview AIRBUS CONFIDENTIAL Initial Concept of Operations Pre-departure Post-departure pairing callout Rendez-vous Separation responsibility transfer Join-up (pre-OPTI) Join-up (OPTI) Formation Keeping Split 3 4 5 6 7 8 Oceanic CONOPS agreed with project collaborating partners AIRBUS Amber AIRBUS CONFIDENTIAL AIRBUS Amber https://docs.google.com/file/d/1wL58pkY0_demh6YnKCumZoa3m0COIukZ/preview AIRBUS CONFIDENTIAL Q&A More information : https://www.airbus.com/en/innovation/disruptive-concepts/biomimicry/fellofly AIRBUS Amber AIRBUS CONFIDENTIAL Thank you This document and all information contained herein is the sole property of Airbus. No intellectual property rights are granted by the delivery of this document or the disclosure of its content. This document shall not be reproduced or disclosed to a third party without the expressed written consent of Airbus. This document and its content shall not be used for any purpose other than that for which it is supplied. Airbus, its logo and product names are registered trademarks. © Copyright Airbus (2023 /fello’fly introduction to Aviation Noise & Emissions Symposium 2023) AIRBUS Amber https://anesymposium.aqrc.ucdavis.edu/

• Sound level decreases by 6 dB per doubling of distance • Additional losses due to atmospheric absorption Ground Effect: • Sound levels are lower when reflected off of soft ground vs. hard ground Sound Propagation Refraction due to Temperature: • Gradients in temperature cause the bending of sound paths • Sound bends upward during a temperature lapse (cool air over warm) • Sound bends downward during a temperature inversion (warm air over cool) Sound Propagation Refraction due to Wind: • Gradients in wind speed cause the bending of sound paths • Sound bends upward causing sound shadows in the upwind direction • Sound bends downward increasing sound levels in the downwind direction • Differences between upwind and downwind directions can be 20 dB Scope of Services ✓Ground Noise Data Research • Meet with StART • Identify ground noise sources and locations • Identify atmospheric conditions that may increase ground noise • Noise Monitoring (in progress – data acquisition complete) • Obtain and analyze data from permanent monitors • Collect and analyze additional temporary noise monitoring data • Identify Mitigation Options • Present findings on ground noise sources and levels and solicit input on mitigation measures • May include changes in aircraft operating procedures or utilization of new or existing structures to reduce community noise exposure • Report Project Results Noise Measurement Locations • Site 1: Northeast • Taxiing/queueing • Start-of-takeoff roll • Engine run-ups • Site 2: East • Terminal din • Auxiliary Power Units (APU) and taxi •…

A European research study examining the dose-effect relationships between aircraft noise, road traffic noise, and their combinations on reading comprehension and sustained attention in 9-10 year old children across the Netherlands, Spain, and the United Kingdom. The study found significant impairment in reading comprehension associated with aircraft noise exposure but no effects from road traffic