PROBLEM TO BE SOLVED: To provide a sailing body control device, a sailing body control method and a program for sailing body control, which can prompt an operator to safer operation.;SOLUTION: A sailing body control device 200 comprises: an operation part 210 for inputting an instruction concerning the sailing of a sailing body; a reaction force application part 230 for applying reaction force, which is the force against the inputted instruction, to the operation part 210; and a determination part 220 for determining whether or not the instruction is inadequate, on the basis of a result which is collected by a measurement part connected to the sailing body and includes the environment around the sailing body. The reaction force application part 230 makes the magnitude of the reaction force larger when the instruction is determined to be inadequate.;SELECTED DRAWING: Figure 5;COPYRIGHT: (C)2018,JPO&INPIT
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