At present in the human world of transport, sailing in the water machine is relative to the slowest, of which the most key factor is water resistance than other means of transport in the air or the ground resistance.On the design of the ship, therefore, of utmost to improve the navigation, and precision is the key control direction.Buoyancy and weight is the focus of the whole sailing ship, this will not only determine the strength of the whole ship design, the ability to resist the wind and waves, also determines the ship hull subject.And it has been proved that placed power layout in the stern, not only can more reasonable distribution of the whole, the weight of the ship hull can effectively differentiate the internal space layout.So, propeller also more reasonable installation in the stern.
