This table shows horsepower and speed. At the 40 KT the same speed is achieved at 180 ps less horsepower. Even with an economical speed of 32 KT, the horsepower is 100 ps less. This is a speed for the main engine at 1/2 load.

　

　

 This is fuel consumption. It has also been reduced; in one hour, it is 150 liters at 40 KT and 100 liters at 32 KT.

　

　

 This is a comparison of the cruising range. Cruising range is 370 nautical miles at 30 KT, increasing by 90 nautical miles from 280 nautical miles. So you can see that for high speed and planing boats, both the ship type and weight have a huge impact on speed. Other than the weight of the hull, industrial parts for ships such as the main engine must be as light and strong as important partners of high-speed ship construction.

　

 Currently, there are 64 aluminum fishery patrol boats in operation throughout Japan. Because illegal ships are becoming faster and patrol areas are expanding, aluminum boats meet these high speed and large-size requirements. Recently, we see more and more high-speed boats exceeding 40 tons. When you include survey ships, practice ships, and training ships, more than 80 aluminum ships are currently on active.