Controlling a ship is a complicated and challenging job. Maneuvering a ship isn't the same as controlling a land based vehicle. It encompasses a series of factors which affect the maneuver actions in different ways. One of these factors is the ships own construction which is being maneuvered. The shape of the ship doesn't depend solely by it's purpose. Consideration should be taken in the ships dimensions and their interplay. The dimensions of the ship won't directly it's maneuvering capabilities, they determine the area the ship can maneuver in. Still, the relationship between the length and the berth of the ship is important for maneuvering because together they give information on the capabilities of the ship to hold its course or ability to change it. Since ships sail through different mediums, water and air it is necessary to construct the shape of the ship that will allow the least resistance as possible while the ship is moving. The longitudinal cross - section and the midship cross - section posses coefficients which together with the coefficient of displacement and the dimensions of the ship determine its shape. The bow frame, bulb and stabilizers are parts of the structure that significantly affect the maneuvering actions of the ship.