Hexcel broadband sound reducing honeycomb, enabling engine designers to achieve superior acoustical performance without a structural weight penalty. Acousti-Cap® consists of a permeable cap material embedded into a non-metallic honeycomb to create an acoustic septum. Customers specify the flow resistance characteristics, overall core thickness, number of caps in a cell and insertion depth to meet their acoustic requirements.

New aluminum Acousti-Cap® provides comparable broadband noise reducing performance with added cost-saving benefits. It withstands temperatures of up to 175°C/350°F during fabrication of the nacelle core blanket and is processable using industry-standard techniques for forming, joining, cutting and machining.