By Dag Pike
This is a ebook approximately sensible powerboat riding in boats huge and small, working at speeds among 20 and a hundred knots. it really is approximately concepts that may purely be picked up from experience—practical how you can make your using more secure, more straightforward and higher, regardless of the conditions.
This publication starts off the place so much different books end. you have learnt the real fundamentals of powerboat using, yet now it is time to see the best way to translate those fundamentals into useful dealing with strategies that you should use to offer a greater experience and feature a smoother passage. With assistance from this ebook, readers will decide up specialist tips such as
50 how you can increase Your Powerboat Driving distils Dag Pike's adventure won from over 50 years of using a complete diversity of craft from high-speed powerboats and lifeboats to ships. Written via some of the most skilled powerboat...
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Additional info for 50 Ways to Improve Your Powerboat Driving
The more the contact area is concentrated aft, the less stable the hull will become and the more prone it will be to pitching and porpoising (see Porpoising, 37). This is because it only requires a small change in the longitudinal trim of the hull to generate a significant difference in the position of the centre of lift so that the boat becomes sensitive to trim and gives an uncomfortable ride. On boats that have a speed up to around 40 knots, a wide beam can be acceptable because there will still be a considerable amount of the hull in contact with the water.
23 TYPES OF STEERING Steering is one of the primary controls of a powerboat and obviously its main use is to point the boat in the right direction. However, the type of steering that is fitted to the boat will have an effect on the way you control it, with two main types normally being fitted. Hydraulic steering is now used more and more on powerboats and is certainly the steering system of choice for most craft. By using hydraulics, it is a simple matter to add power assistance to the steering – and this can have good and bad effects.
The main reserve that you have to play with is the speed of the boat, so easing back on the speed immediately builds a reserve of performance. The question is how much of a reserve do you need? A lot will depend on the prevailing sea conditions and the response time of the boat but a reduction in speed of 5 knots from the maximum – or, say, 10% less than the flat-out speed for the conditions – would be appropriate to give you a margin of safety against the unexpected. Like most things associated with fast boats, there are no hard and fast rules, but you will know when you are driving on the limit and when you feel that you have a comfortable margin.
50 Ways to Improve Your Powerboat Driving by Dag Pike