MERCHANT SHIP CAPABLE OF SAILING IN FROZEN SEA AREA AND OPERATION METHOD THEREOF

摘要

Provided is an operation method of a merchant ship havinga high sailing energy efficiency in a frozen sea area.A merchant ship includes a bulbous bow (13) which isprovided in a bow part; amain propeller (11) which is providedin a stern part and driven by amain engine (12); an additionalpropeller (20) which is provided in a ship bottom part; and anadditional-propeller-driving unit (22). The main propeller(11) and the additional propeller (20) are disposed so as toapply thrust forces when the merchant ship is in an unloadedstate. The merchant ship has a draft line (18) with which alower part of the bulbous bow (13) is located on a sea surfaceor an ice upper surface. The merchant ship (10) sails in a frozensea area by using the main propeller (11) and the additionalpropeller (20).