Understanding design and performance of Stepped Hulls

By Kobus Potgieter


So many readers have asked me about “Stepped Hulls” and with this in mind, I thought it might be a good idea to write a brief article about this concept and design feature on the hull bottom of a planing hull.

Stepped bottoms have been used for a very long time to improve performance. A very famous design was Maple Leaf, built in wood in 1912, and since then many successful racing hulls have had this type of bottom. One can say that it is a further refinement of the deep V-Hull...

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How to Evaluate Boats?

By Kobus Potgieter


So you are in the market for a boat. Hundreds of boats are sold every year and every salesman has his or her own sales pitch trying to perswade you in the brand they are selling. If you have the time on your hand to comparison shop, I have a few of useful computational tools to help making a comparison between boats...

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Planing Hulls

By Kobus Potgieter


In my previous article, I briefly discussed and touched on the different hull shapes available, how they work and how to distinguish these hull forms from one another.
In this article, I will be focusing in greater detail on planing hulls - such as why they ride on top of the water, how to evaluate a planning hull and provide you with some tools to assist you in choosing the right planing boat for your needs...

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