* Engine: For reasons of economic performance, a low-speed diesel engine was selected. Horsepower required for icebreaking was estimated at 21,000HP, on the basis of the regulations of classification societies and operation experiences of comparable icebreaking cargo vessels. In open water, normal output was set at 21,750HP, based on a 20% increase in horsepower over the similar Panamax bulk carriers, taking account of power margin due to the difference in their hull forms. This means that the main engine output of the deep-draft NSR ship was determined by the horsepower required for navigation in open water. At the initial design stage, the maximum output of the ship's engine was set at 24,160HP.
* Rudder: A mariner-type rudder was used.
* Propeller: conventional, fixed-pitch propeller.
The principal particulars and the body plan of the ship are illustrated in Table B-6 and Figure B-17 respectively.