British Airways has deployed two new IAC Acoustics ground run enclosures (GREs) at London Heathrow Airport in a bid to reduce the impact of noise on communities adjacent to the airport.
Built using the Jetshield sections and Aerowall (side walls), GREs are designed to accommodate large passenger aircraft, such as A380, for post-maintenance engine testing, including testing take-off power.
IAC Global Aviation chief engineer Fraser Alexander said that the company’s aim was to develop a GRE that is modular, scaleable, easy to manufacture, ship and install, maximising benefits to the customer beyond just improving performance.
"In meeting our goals, the new range of GRE products has been an exciting challenge for the aero-acoustic team," Alexander said.
IAC’s new GREs feature enhanced aerodynamic configuration to facilitate testing small to large aircraft, and the enclosures offer enhanced acoustic performance by incorporating the company’s products and noise control solutions.
According to the company, the modular design of the enclosures also offers an improved aerodynamic performance, meeting the requirements of the ultra-high bypass turbofan.
GREs also reduce the effect of engine noise, vortices and re-ingestion, which otherwise could stop the engine.
Integration of IAC Powerflow silencers in the walls negates the effects of crosswinds and minimises airflow distortion and vortices in the facility.
The incorporation of Jetshield rear walls with Aerowall side walls and IAC Powerflow silencers would enable the deployment of GREs more often, which was not previously possible.
IAC has collaborated with British Airways and the London Borough of Hillingdon in determining the location and site requirements for the GRE deployment.
Image: The GREs would enable British Airways to carryout post-maintenance engine testing, including take-off power at HeathrowAirport. Photo: courtesy of IAC Acoustics.