A neighbor of mine bought a 14 ft. flat bottom with a 15 horse motor and home made trailer. He ask if I would go with him to run it for the first time. We went to launch, the boat and motor ran great. When we tried to load it I couldn't get it to line up on the trailer. The trailer had alum wheels and car tires. The trailer would float. Every time you tried to load it would float to one side or the other. We had to put smaller tires and rims on it to keep the trailer from floating.