Jet boat design & construction "the ultimate aluminum jet boat design" we achieve our claim of providing you the "ultimate aluminum jet boat experience" by first designing and building the absolutely best hull for performance, strength, safety and comfort in the industry.. A jet engine is a type of reaction engine discharging a fast-moving jet that generates thrust by jet propulsion. this broad definition includes airbreathing jet engines ( turbojets , turbofans , ramjets , and pulse jets ).. With jet boats, there exists a number of problems with the factory cooling system design that have come to light over the years. first, most jet boat engines run too cool for optimum performance..
A jet will follow the prop cube law in terms of power, if your delivery is higher than it can absorb you have a problem; if your engine is revving higher than the jet can take, it will cavitate. you need to match the engine rpm with that of the jet.. The yamaha 9.9 4 stroke outboard engine looks identical to the 15 except for a few bits and bobs on the carburetor, diaphragm, nozzle and jet, same bore stroke etc... Do you have a favorite watercraft or boat? here is our list of 15 creative watercraft and cool boat designs. tell us in the comments below which watercraft was your favorite?.
