Activation group 1 for water mode. Activation group 2 for land mode. An amphibious boat with a top water speed of 54 mph, and and top land speed of about 100. Be careful not to go over 35mph on land, because you will flip. Has extremely long range, and turning is powered by three rotating rudders on the bottom of the boat instead of using fuel wasting RCS Nozzles. The water breaks are air spoilers on the bottom of the boat, extending out to stop the water, making the boat stop. This is my first boat, and it looks ugly. I'm planning on. More streamlined and better looking version called the PXB-20 Later. The 20 will also be jet powered.