Industrial noise

April 5, 2014 - 3:10am

On March 4 the FAA issued its final rule on Stage 3 helicopter noise certification standards for new helicopter type design and the upgrade of Stage 1 and Stage 2 helicopters when upgrading to Stage 3 via supplemental type certificate (STC). The rule standardizes FAA regulations with those adopted by the International Civil Aviation Organization (ICAO) in 2002 and follows the issuance of a notice of proposed rulemaking (NPRM) on the topic issued in 2012.

April 5, 2014 - 3:10am

On March 4 the FAA issued its final rule on Stage 3 helicopter noise certification standards for new helicopter type design and the upgrade of Stage 1 and Stage 2 helicopters when upgrading to Stage 3 via supplemental type certificate (STC). The rule standardizes FAA regulations with those adopted by the International Civil Aviation Organization (ICAO) in 2002 and follows the issuance of a notice of proposed rulemaking (NPRM) on the topic issued in 2012.

February 4, 2014 - 3:06pm

Rep. Adam Schiff (D-Calif.) says he wants the FAA to apply noise rules to all helicopters transiting the Los Angeles basin, including those flown by emergency services. “Not all law-enforcement flights are emergencies,” Schiff said during an interview with SoCal public radio station KCRW.

May 5, 2013 - 2:35am

Aerocon Engineering has signed a contract with an undisclosed customer to design a cabin noise-reduction system for a head-of-state 747-8i.

According to CEO Benny Younesi, the Van Nuys, Calif.-based company’s latest system upgrade will be “lighter, more efficient, more cost effective and easier to maintain.” The company intends to seek STC approval from both EASA and the FAA.

June 4, 2012 - 12:10am

A new noise-cancelling headset introduced in April at the Aircraft Interiors Expo in Hamburg, Germany, is set to find a market in business and private aviation.

Middletown, R.I.-based Avid claims the headset “effectively reduces environmental external noise by 85 percent with a 20-decibel maximum noise attenuation.” Forty-millimeter speakers, said an Avid spokeswoman, “ensure crisp, clear sound and well defined bass.”

November 7, 2007 - 10:30am

The European Union’s research program on noise reduction, Silence(r), officially ended in June with promising results. It explored all noise sources, from engines to landing gear and flaps. However, although it achieved a reduction of five decibels in aircraft noise, several more leads need to be developed to reach the ambitious target of cutting a full 10 dB from average noise levels by 2020.

 
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