Current page
Aircraft noise
Engine tests
Breadcrumb Navigation
Content
Soundproofed test runs
Engine testing hangar
For test runs after maintenance work on aircraft engines, a special acoustically insulated hangar was built in the south-west of the airport grounds to limit noise emissions.
Design and construction
This hall was designed to accommodate aircraft as large as a Boeing 747. The hall-like structure is 20 meters high, 72 meters wide and 105 meters long. Nevertheless, it is constructed so that very little noise can escape. Reinforced concrete walls 20 centimeters thick with acoustic paneling 10 centimeters thick on the inner walls and ceiling combine with the building's conical form to guarantee effective noise control.
To maximize the noise reduction impact, the aircraft are positioned nose-in or nose-out, depending on the wind direction. Ground markings indicate the exact positioning of aircraft inside the hangar. All airlines using the facility have been trained to follow these procedures.
In addition, a video system monitors the interior of the building to document each test. Noise measurements are also made for all engine tests, ensuring that they are fully documented to permit later reconstruction if necessary.
To maximize the noise reduction impact, the aircraft are positioned nose-in or nose-out, depending on the wind direction. Ground markings indicate the exact positioning of aircraft inside the hangar. All airlines using the facility have been trained to follow these procedures.
In addition, a video system monitors the interior of the building to document each test. Noise measurements are also made for all engine tests, ensuring that they are fully documented to permit later reconstruction if necessary.
