+49 2641 3703 – 0 +49 2641 3703 – 199 info@monch-group.com

Marshall Invests in Europe’s Largest Quiet Test Building

Accommodates Aircraft up to Boeing 747-400

Marshall Aerospace and Defence Group (ADG) has installed the largest fully-enclosed engine test structure in Europe at its UK headquarters in Cambridge.

The new Ground Running Enclosure (GRE), which is the size of a football pitch, is 90m wide, 20m high and significantly reduces noise during aircraft ground testing and can accommodate aircraft up to the size of a Boeing 747-400. The multi-million pound structure significantly reduces noise impact in the immediate vicinity of Cambridge Airport, where most of Marshall ADG’s specialist applied engineering work is undertaken on aircraft from around the world.

The GRE contains more than 10,000m3 of concrete and 654t of steel reinforcing. The doors weigh 200t and are operated on a rail system, while the rear wall has jet blast defectors, which direct the airflow upwards. Its walls incorporate noise absorbent panels and the facility enables conditioning of the airflow to the aircraft’s propellers and jet engine intakes.

It’s 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 we are living up to our commitment to reduce any potential noise pollution for our neighbours,” commented CEO Alistair McPhee.

Related Posts

Publish date


Sign up to our newsletter and stay up to date.




Components / Systems


Defence Business

Homeland Security

International Security


Latin America (Spanish)



Training & Simulation


Special Forces



Contact Us

Contact Info

Mönch Verlagsgesellschaft mbH
Christine-Demmer-Straße 7
53474 Bad Neuenahr – Ahrweiler

+49 2641 3703 – 0

+49 2641 3703 - 199

Follow On