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16 October, 2019 - 13:22 By Kate Sweeney

Marshall ADG installs Europe’s largest quiet test facility

C-130 Hercules

Fast growing Marshall Aerospace and Defence Group has installed the largest fully enclosed engine test structure in Europe at its UK headquarters in Cambridge.

The company has become the predominant UK force in winning global competitions for work under CEO Alistair McPhee.

The new Ground Running Enclosure (GRE) – which is the size of a football pitch – significantly reduces noise during aircraft ground testing and can accommodate aircraft up to the size of a Boeing 747-400.

The multimillion pound facility will dramatically cut noise impact in the immediate vicinity of Cambridge Airport where most of Marshall ADG’s specialist applied engineering work is undertaken on aircraft from across the globe.

Marshall ADG’s CEO Alistair McPhee said: “It is a very exciting development for us. This facility gives us great flexibility in terms of the breadth of aircraft it can accommodate while at the same time ensuring that we are living up to our commitment to reduce any potential noise pollution for our neighbours.”

The new GRE is 90m wide and 20m high and enables conditioning of the airflow to the propellors and jet engine intakes.

Construction began in May last year by Blast Deflectors, Inc. who are world leaders in solutions for reducing aircraft noise. It will be fully up and running by the end of October.

The facility contains more than 10,000m3 of concrete and 654 tonnes of steel reinforcing. The doors weigh 200 tonnes and are operated on a rail system. The rear wall has jet blast defectors, which directs the airflow upwards. Its walls incorporate noise absorbent panels.

A Lockheed Martin C-130 Hercules getting ready for engine test

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