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If you have a question, feel free to contact us:

GRAS Sound & Vibration 

Headquarter | gras@grasacoustics.com
UK       | sales-uk@grasacoustics.com
USA    | sales-usa@grasacoustics.com
China | cnsales@grasacoustics.com
South Korea | sales-kr@grasacoustics.com
India | sales-in@grasacoustics.com


GRAS worldwide

Aircraft Engine Noise Testing

When it comes to developing engines and conducting tests in order to monitor aircraft noise, meeting the correct standards reduces your costs, enabling you to operate around the clock.

At GRAS we have developed a wide range of acoustic sensors and rugged measurement microphones designed to help you reduce engine noise in order to adhere to aircraft noise certification standards.

Our world-class equipment is perfect in all types of applications, including inflight measurements, fly-overs, acoustic vertical testing and land- based rigs. 

Cases & Brochures

Rocket Noise Sources

Fan Rig Noise Test

Turbine Array Microphones

Large-Scale Microphone Array for Aircraft Jet Plume Noise Source Characterization

FAQ for Aircraft Engine Testing

What is aerospace engine testing?
Aerospace engine testing is the controlled evaluation of aircraft engines to measure performance, durability, emissions, and noise, ensuring they meet design and regulatory standards before flight operations. 

Why is engine testing important for aircraft development?
Engine testing verifies thrust, efficiency, safety, and compliance with noise and emission regulations, helping manufacturers deliver reliable, high-performance propulsion systems. 

What types of engine tests are conducted?
Typical engine tests include ground test stands, altitude simulations, performance runs across power settings, and noise measurements in special acoustic cells. 

How does acoustic measurement support engine testing?
Acoustic measurement captures engine noise levels with precision sensors and microphones to reduce noise emissions, aid certification, and optimize quieter engine designs.