Noise attenuating sandwich composite panel

A sandwich composite panel comprising:

• a first cover skin comprising a first open-mesh fiber composite net having a first mesh size, and a first flexible cover film laminated onto said first open-mesh fiber composite net;
• a second cover skin comprising a fiber composite material;
• and
• an inner core sandwiched between said first and second cover skins, wherein said inner core comprises a plurality of hollow cell bodies that respectively extend transversely between said first and second cover skins and respectively have internal cross-sectional dimensions greater than said first mesh size;
• wherein said first open-mesh fiber composite net comprises continuous uninterrupted fibers defining mesh openings therebetween, with a respective plurality of said mesh openings opening into each respective one of said hollow cell bodies;
• and
• further comprising a remainder of an adhesive film between said inner core and said first open-mesh fiber composite net with film openings through said film coinciding with said mesh openings, said remainder of said adhesive film having a configuration as is formed by arranging a continuous solid adhesive film between said inner core and said first open-mesh fiber composite net and then sucking an excess of said solid adhesive film through said mesh openings so as to form said film openings through said film.