Patent
System for reducing aircraft noise and hush kit
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TLDR
In this article, a system for existing three-engine jet aircraft to reduce the noise levels at take-off and landing in order to meet governmental noise regulations is provided. But this system is particularly suitable for 727-200 aircraft having three JT8D engines.Abstract:
A system is provided for existing three-engine jet aircraft to reduce the noise levels at take-off and landing in order to meet governmental noise regulations. The system is particularly suitable for 727-200 aircraft having three JT8D engines. A hush kit is formed of the modified components for installation in existing airplanes.read more
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References
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Honeycomb noise attenuation structure
TL;DR: Honeycomb noise attenuation sandwich panels and method of construction having a cellular core positioned between and bonded to two facing sheets are described in this article, where a thin sheet of porous fibrous felt or fabric is bonded to the perforated sheet.
PatentDOI
Quiet nacelle system and hush kit
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Deployable inlet for aeroplane center boost engine
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