Bennett A1101A Replacement Hydraulic Trim Tab Actuator Every boater, especially those with speed or sport boats, should be aware of the value and benefits to installing and maintaining boat trim tabs on their craft. Maximizing its engine output, these tabs facilitate lifting the bow of the boat, that is changing its pitch access, to quickly compensate for changes in speed, weight distribution, and water conditions. Each trim tab is used to trim or to counteract aerodynamic forces to control and