Applying the gray fixed-weight clustering method to evaluate the safety level of the sample road networks which was given in the chapter 3.

After being fixed, the sculpture measures 1.63m in height, 1.62m in length and 2 tons in weight.

If the centerboard is weighted, then it also provides weight low in the water, like a keel, to help keep the boat upright (although not as much weight as a fixed keel can supply).