Otherwise, this research will advise the marine operators to deeply understand and avoid running the turbocharger at overload range, consequently the turbine blades are burnt, or turbocharger drops in the unstable surge margin operation. It's useful to design and select a suitable turbocharger for main engine, and prevent it dropping in unstable area, or not reaching the desired efficiency after short time operation. In this paper, we would like to study on the effect of turbocharger operation on main engine power due to the changing of hull resistances, as well as the inverse effect of power changing to the turbocharger operation. All simulators provide instructor software. The navigation simulators include steering or boat-handling stands. Some engine room simulators can be shipped in desktop or standalone consoles, up to a complete full mission installations. In fact, this may cause some influences on the main engine. We offer a range of simulators for engine room training, ship-handling and GMDSS. Ship's hull resistances will change in according to the ship's operation time, caused by several different reasons: the development of sea creatures clinging to the hulls sea water corrosion and distortions of hulls the abrasion and corrosion of propellers the abrasion of driving shaft bearings etc… It is considered the changing of hull resistances is independent on the main engine turbocharger operation.
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