Hull Design - Basic Rules to Follow

It surely is a well known fact that the hull serves the major part of boat designing.  It is the most important part of a boat which allows the required buoyancy of the boat while on the water.  So to design a perfect hull a few basic rules should be followed. Here are a few hull design basic rules to follow in three different types of boats.

The racer boat can be an inshore ‘light air’ one but the hull should be designed differently. In this case the prismatic coefficient of the boat should be approximately around point five to five.  This is to ensure a good performance of the boat.

In the case of a ballasted boat hull care must be taken to see that the actual weight of the ballast does not weigh more than fifty percent of the upward weight provided by the boat.  The boat should remain stable even when dipped in water.  An equal thrust should be working on all sides of the boat while in motion.  This will ensure that the boat will not sink.

To maintain this proper equilibrium you need not concentrate on placing the ballast in one place.  Instead you can distribute it equally placing it over the middle third distance form one stem to the other.

Finally the clinker-on-frame hull needs an entirely different designing.  The hull should be separated in three different joints.  This suggestion should be followed very strictly since the result if this is not followed could be very disastrous.

If you are planning a small or a medium size boat then you should ensure that a freeboard about one tenth of the LWL of the boat be present.  This is all that you need in the case of this boat to make that perfect hull design.

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