The development of current generation commercial turbofan aircraft engines involves extensive subscale testing to optimize performance parameters prior to entering flight tests where design changes are far more expensive to implement. With the restrictions on noise emissions becoming more stringent, a greater emphasis is being placed on acoustic tests to complement the aerodynamic and thrust performance tests. To support this need Aero Systems Engineering Co. has recently added acoustic measurement capability to one of the static thrust stands. This upgrade is discussed along with the general features of the test laboratory.
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