The transom transfers the energy generated by your motor to the rest of the hull, moving your boat through the water. By turning the helm, you change the angle that the motor is pushing from, and that redistribution of energy against the transom turns your boat.
The letter m under the shoe width represents.... The letter M under the shoe width represents the Medium Width size. You may also find the letter N, which stands for Narrow. The letter W for Wide, the letters WW for extra wide and the WWW for double extra wide sizes.
A D-width is considered a medium for men and a wide for women. It measures between 3 and 5 inches across the bottom of the ball of the foot, depending on your shoe size. For instance, in men's footwear, a size 10D is 4 inches across, while a size 14D is 4.5 inches across.