Sasaki, NoriyukiNoriyukiSasakiAtlar, MehmetMehmetAtlar2024-04-152024-04-152024-04-048th International Symposium on Marine Propulsors (smp 2024)978-82-691120-5-4https://hdl.handle.net/11420/46436The Gate Rudder System (GRS) is a new integrated propulsion system that combines steering and propulsion uniquely and unconventionally. This system's most distinctive application feature is that the existing rudder is removed from the original position, and two new rudder blades are placed either side of the propeller. As a result, the rudder, which is conventionally a resistance source, becomes a propulsion device that can generate thrust. In addition to the above hydrodynamic advantage, the effect of the hydrodynamic side force generated on the gate rudder when the ship is sailing with a drift angle provides the hull with a high course stability and smaller yawing and rolling motion in wind and waves. This reduces the inservice resistance. The advantages mentioned above and other unique features of the gate rudder system (GRS) suggest a rethinking of conventional hull form design and lead to new types of hull forms that may not have existed so far, as discussed in this paper.enhttp://rightsstatements.org/vocab/InC/1.0/Gate RudderEnergy Saving DeviceOpen type Ducted PropellerScale Effect of thrust deduction factorEngineering and Applied OperationsConference Paper10.15480/882.930110.15480/882.930110.15480/882.9294Conference Paper