1902 - 120th Place SE #202

Everett, Washington, 98208

Phone: (425) 337-9472 or toll free (888) 300-5443; Fax: (425) 337-9578

Acoustical Engineering for Aerospace, Architectural, & Environmental Applications


Quietly Superior, Inc. (dba J R Engineering) has been involved in a variety of acoustical fields since 1984. 


Architectural Acoustics -- creating quiet indoors

Environmental Acoustics -- creating quiet outdoors

Aircraft Noise Testing and Certification

Aircraft Performance Testing, Analysis and Certification

We have worked with several companies developing noise suppressors (hush kits) for a variety of aircraft, including the Gulfstream G-II, Boeing 727 and 707 and McDonnell-Douglas DC-8. In addition to hush kitted aircraft, we have worked with companies, such as Gulfstream and Embraer, on certifying new aircraft.


We have also worked with numerous developers and architects to provide a variety of architectural and environmental acoustic analysis from 24-hr. noise surveys for new construction sites to room acoustic analysis (such as STC, IIC) for existing residential complexes.


J R Engineering, based in Everet, Washington, is available for consultation as to the most timely and cost effective measures that might be considered for the elimination or control of unacceptable noise levels.


Click on the links to find out more about our company and how we can assist you.

Why J R Engineering?  J R Engineering's History  Environmental Issues  Architectural Acoustics  Aircraft Interior Noise

Clients & Testimonials  Aircraft Noise Certification Overview  Contact Us



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