1. Multipurpose Polar Icebreaking Subsea Work Vessel Niko Kantonen Santeri Ihalainen

2. Resistance In conceptual design we have calculated clear water resistance with ITTC-57 and ice resistance with Lindqvist method Now we need to calculate the resistance with couple of other calculation methods (for example Holtrop, ITTC-74, Taylorgertler) We need to update the calculations with the specified dimensions of the ship and with the different vessel speed values + present the speed range We can identify more resistance components than in conceptual design

3. Resistance Resistance calculated in conceptual design

4. Propulsion Propulsion solutions need to completely checked because we probably need to change the amount of pods from what was designed in conceptual design The general arrangement has changed while creating the NAPA model of ship Recalculation of propeller particulars and cavitation risks Checking will we need a different size of propellers than in the conceptual design

5. Machinery The selected genset solution in the earlier phase was the Wärtsila 38 series with 4 engines of two different size

6. Machinery One type of machinery selection made in conceptual design but no comparison with alternative options Need to compare different engine set solutions Many aspects need to be considered: number of engines, fuel type, energy efficiency, fuel consumption, space reservation Energy balance chart needs to be done Operational profile of the energy usage needs to be calculated

7. Schedule and work breakdown We will be working under these topics during the next two weeks Santeri will be concentrating more on the resistance part Propulsion decisions will be discussed and worked together Niko will be on machinery part