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
Acoustical Privacy in Multi-Unit Housing and Offices
Uniform Building Code Compliance
Sound Transmission Class (STC) field testing and analysis
Sound Isolation Class (IIC) field testing and analysis
HVAC Noise control
Room Acoustics -- echo and reverberation control
Environmental Acoustics -- creating quiet outdoors
Noise Surveys, Noise Contours
HUD and local land use requirements
Noise code compliance and mitigation
Air conditioners, generators, fans
Cellular phone towers
Industrial and commercial operations
Aircraft Noise Testing and Certification
We specialize in making aircraft quieter when required and demonstrating compliance with noise regulations to the FAA or other cognizant authorities
FAA/DOT approved instrumentation, software and methodology
On staff: Designated Engineering Representative (DER), Acoustics Appointed by FAA
More than 30 acoustic flight tests
Certification of Repairs and Modifications
We design quiet aircraft interiors
In-flight cabin noise surveys
We provide community noise contours using FAA Standard Integrated Noise Model (INM)
Aircraft Performance Testing, Analysis and Certification
On staff: Licensed Professional Aeronautical Engineer
On Staff: Flight Analyst (performance) DER
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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