The semidisplacement boat has some of the advantages of the other types.
High speed boat handling. A boat at high speed has a large amount of force. I stood at the helm of a 42-foot Cigarette next to a veteran speed merchant named Bud Lorow. The emphasis here was about the whole boat communicating and being part of what we were doing.
Controlling speed controls the effect a wave will have on a boat. But in general you should trim up the engines about a third to start raise trim tabs and throttle back to 3500 to 4000 rpm to find an optimal cruising speed. This reduces friction allowing speed to be maintained with less power.
For multi-step V Hull and Catamarans that operating at speeds above 75MPH limited to 125MPH. During the turns operators practice turning the boat safely at high speed without sliding inducing. Go-fast aficionados know that in most cases when entering a high-speed turn youll need to bring the drive in a hair to prevent the props from blowing out.
We finished our time on the water with some final coming alongside practice and close quarters handling. I came across an interesting paper on high speed craft. Prop cavitation If the props start sucking air ventilation the boat will lose both speed and control.
As when driving a car down the highway focus on a point in the distance but pay constant attention to your peripheral vision. Tres and Brad teach a technique that involves pumping the helm to keep the prop in clean water and to alway be ready should it lose its grip. Always enter turns slowly and increase the rate of turn smoothly.
Whenever turning at speed it is important to warn the crew so that they are not thrown out of the boat. High speed boat design. Trainer leads operators in the Follow the Leader drill at high speed while making a variety of turns including 45-degree turns circles and a series of figure-eights.