A spaceship's hull provides the framework that holds the ship together. Hulls are not always solid, with air pressure throughout the interior; often, much of a ship's hull resembles a cage that simply keeps cargo inside. Hulls are rated by size; from 1 to 20. Each hull size has a set number of hatches and engine mounts. The length and diameter of a given hull can be increased or decreased as much as 25%, however, since two hulls of the same size can be of very different shapes. * DCR = (hull size x 3)+20 * Hull Points = hull size x 5