Business aircraft management and charter operator Zenith Jet and noise reduction specialist Aviation Management International Services (AIMS) have teamed to launch a new thermal acoustic barrier package–dubbed Silentium Air– that promises to reduce cabin noise by up to 30 percent. AIMS is supplying the kits and Zenith Jet is the exclusive marketing agent.
Business aircraft management and charter operator Zenith Jet and noise reduction specialist Aviation International Management Services (AIMS) have teamed to launch a new thermal acoustic barrier package that promises to reduce cabin noise by up to 30 percent. AIMS is supplying the kits and Zenith Jet is the exclusive marketing agent.
Eurocopter is flight-testing low-noise approach, takeoff and cruise flight procedures with an EC 135 light twin. The trials are also serving to develop a software program for noise footprint prediction. Similar tests were conducted with an EC 130 last year.
Broadband cabin noise, which can greatly fatigue passengers in even the most finely appointed business aircraft, could be a thing of the past if a new system from Britain’s Ultra Electronics and Qinetiq makes it to market. Early next year the partners are expecting to flight test new-generation hybrid active/passive mounts positioned between the fuselage and cabin trim panels.
Cabin entertainment provider Rosen Aviation and cabin completion and refurbishment specialist Elliott Aviation have joined forces to create a noise-canceling solution combined with an in-flight entertainment system for the King Air 200, 300 and 350. Elliott’s sound management system incorporates UltraQuiet active noise control.
Noise is everywhere–annoying, tiring and sometimes painful. Since the early days of aviation, when a roaring, clattering engine sat on a wooden frame close to the pilot, and the wind whistled through the wire bracing like a banshee chorus, engineers have sought to make the process of manned flight less noisy. And they have succeeded, to a degree.
U.S. and European Union officials are making last-ditch efforts to negotiate a settlement to their long-running dispute over hush kits bringing Stage 2 aircraft into compliance with current Stage 3 noise limits. Both sides want the deeply divisive matter resolved at the September 25 meeting in Montreal of the International Civil Aviation Organization assembly.
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.
XtraJet, a Santa Monica, Calif.,-based charter firm, has become the second operator to be sued by the Los Angeles Board of Airport Commissioners for allegedly committing repeated violations of the noise restrictions at Van Nuys Airport. Earlier, the board filed a similar suit against Pacific Jet (AIN, August, page 79).
Cessna Citation S550 Bravo, Dillon, Mont., May 3, 2007–The ATP-rated owner-pilot and a passenger were killed when the Citation Bravo crashed on a circling instrument approach at Dillon in VMC. A witness reported hearing a loud engine noise followed by a “plop.” He said the engine noise was loud, diminished, then got loud again. He spotted a large cloud of black smoke and a fire outside the airport boundary fence.