Abstract: A system and apparatus for reducing flutter in disk drive spoilers positions the center of mass of the mean aerodynamic section of the spoiler at or ahead of the quarter-chord location nearest the leading edge of the spoiler. A balance weight may be formed in or attached to the spoiler. The center of gravity is located no farther back from the leading edge than one quarter-chord in a direction of the flow field. Alternatively, the spoiler trailing edge is lightened by making the trailing edge more porous or thinner than other sections of the spoiler.