Trim tab

A trim tab assembly comprising:

• a trim tab comprising
• a first end comprising a member or a curved surface, wherein the member or the curved surface, when in an extended state, adjusts attitude or motion of a marine vessel;
• and
• a second end that attaches to the marine vessel via an attachment device, wherein the member or the curved surface is convex-shaped such that the member or the curved surface curves outward in a direction away from the attachment device;
• and
• a support structure attaches to the marine vessel, wherein the support structure comprises a scraper plate, wherein the scraper plate is adjacent the member or the curved surface, and wherein the member or the curved surface moves relative to the scraper plate while transitioning between a retracted state and the extended state.

A trim tab comprising:

• a member connected to and positioned at least partially forward of an attachment device, wherein the member rotates at least partially about a portion of the attachment device between a retracted state and an extended state to adjust attitude or motion of a marine vessel;
• a first end comprising a first portion and a second portion;
• and
• a second end,
• wherein
• the first end is positioned forward of the second end,
• the second portion of the first end extends forward of the first portion of the first end and away from the second end, and
• while in the extended state, the first end extends at least from a first point, adjacent a scraper plate or a bottom surface of the marine vessel, to a second point below the scraper plate or the bottom surface of the marine vessel.

A trim tab comprising:

• a first end comprising a first member, wherein the first member has a first curved surface;
• a second end attaches to a marine vessel via an attachment device, and wherein the first end adjusts attitude or motion of the marine vessel;
• and
• a side extending between the first member and the attachment device, wherein the first curved surface and the side define a wedge-shaped portion of the trim tab,
• wherein the first member is pivoted about a portion of the attachment device and extends below a scraper plate or a second surface of the marine vessel while in an extended state.