APS Germany designs and delivers ground run-up enclosures for aircraft engine testing, jet blast control, and airport noise mitigation.
As communities around airports grow and become more sensitive to aircraft noise, ground run-up activity has become an increasingly important source of local noise concern. A Ground Run-Up Enclosure (GRE) helps airports, airlines, and aircraft maintenance organizations conduct engine testing while reducing acoustic impact on the surrounding environment.
Aircraft maintenance often requires high-power engine runs. These tests can be extremely loud and may last longer than a typical takeoff event, which makes them particularly sensitive in airport environments. Unlike departing aircraft noise, ground run-up noise can be controlled more directly through a properly engineered enclosure concept.
A GRE protects the immediate area from jet blast while helping reduce the impact of engine run-up noise on nearby communities and airport surroundings. Depending on the project requirement, enclosure concepts can range from simpler two-sided or three-sided facilities to more comprehensive four-sided arrangements.
Acoustic performance is one of the central design drivers of a ground run-up enclosure. The required enclosure concept depends on the aircraft type, engine run profile, local sensitivity of surrounding areas, and the level of noise reduction expected from the facility.
In practice, GRE acoustic design is not only about adding walls. The geometry of the enclosure, the arrangement of acoustic treatment, and the interaction between sound control and airflow behavior all influence the final result. A technically effective GRE must therefore balance acoustic performance with aerodynamic usability and safe aircraft operation.
APS Germany approaches GRE development with attention to project-specific acoustic requirements so that the enclosure concept supports both operational testing needs and the broader airport environment.
The effect of a ground run-up enclosure can be understood by comparing run-up conditions without a GRE against more open and more comprehensive enclosure concepts. Depending on the aircraft, test profile, and surrounding sensitivity, the enclosure concept influences both acoustic impact and the overall control of the run-up environment. The lunch-and-learn deck explicitly contrasts No GRE, 3-sided GRE, and 4-sided GRE and frames GRE purpose around both blast protection and community noise reduction.
Without a GRE, engine run-ups take place in a less controlled environment. Noise spreads more directly into surrounding areas, and there is less ability to manage acoustic impact, immediate-area blast exposure, and the overall testing environment.
A 3-sided GRE provides a practical balance between acoustic performance and operational flexibility. It is generally the most common solution where effective mitigation is needed, but a more open configuration remains important for access, maneuvering, and site integration. The lunch-and-learn deck describes the 3-sided GRE as the most common solution.
A 4-sided GRE is used where stronger enclosure performance and broader acoustic containment are required. It offers a more controlled run-up environment and is better suited to projects with higher sensitivity, more demanding test conditions, or stronger enclosure requirements. The lunch-and-learn deck frames the 4-sided GRE around broader acoustic performance.
4-sided ground run-up enclosures are typically selected where stronger enclosure performance and broader acoustic containment are required. They are particularly suitable for more demanding airport conditions, higher-performance applications, or locations where surrounding sensitivity and operational requirements justify a more comprehensive engineered enclosure.
A 4-sided concept can provide a more controlled internal acoustic and aerodynamic environment and is often preferred where broader acoustic performance is an important design objective. APS Germany develops 4-sided GRE solutions around the specific operational and environmental demands of each project. The lunch-and-learn material frames the 4-sided GRE around stronger overall acoustic performance.
3-sided ground run-up enclosures are often the most practical and commonly adopted solution where a strong balance is needed between acoustic performance, accessibility, and operational flexibility. This type of enclosure is well suited to airport locations where effective run-up noise mitigation is required, but a more open configuration is preferred for operational reasons.
A 3-sided concept can offer an efficient combination of acoustic improvement, constructability, and usability, while remaining adaptable to local aircraft, wind, and site conditions. APS Germany develops 3-sided GRE concepts with attention to enclosure geometry, internal acoustic treatment, airflow behavior, blast management, and safe aircraft handling. The lunch-and-learn deck explicitly describes the 3-sided GRE as the most common solution.
2-sided ground run-up enclosures can be considered where site constraints, operational layout, or project-specific requirements call for a more limited enclosure concept. While they do not provide the same level of acoustic containment as more comprehensive GRE configurations, they may offer a practical solution in selected airport environments where a focused balance between blast control, noise reduction, and operational usability is required.
A 2-sided concept is typically evaluated on a case-by-case basis, taking into account aircraft type, engine run profile, surrounding sensitivity, wind behavior, and the level of protection required. In suitable applications, it can provide a workable solution where space, geometry, or operational conditions do not favor a larger enclosure arrangement. The lunch-and-learn material includes a 2-sided example: Budapest, Hungary, which supports including this configuration as a valid but more selective concept.
APS Germany supports airports and aviation operators with GRE concepts tailored to aircraft type, site constraints, and operational testing requirements. Request Brochure and Project References.
Whether you require a 3-sided or 4-sided ground run-up enclosure, APS Germany can support the evaluation of the right concept for your airport, aircraft fleet, and operating conditions. Contact us to discuss your project or testing requirement.
APS-related GRE experience includes major airport and aviation projects such as Toulouse, Bangkok Suvarnabhumi, Cambridge, Norwich, Pilatus, and Dubai, alongside wider international airport and military air base applications.
The Airport of Munich extended its Terminal 1.
To protect the construction site from jet blast, the well proven APS jet blast screens were used.
For security reasons a separate fence with barbed wire head was placed on top of the blast screen foundation blocks.
Design Load: 40 m/s or 89.5 mph
Dimensions: 370 m x 2.5 m or 1214 ft. x 8.2 ft.
