Surf is a whole world to explore. The surf board, although it many not seem so, is full of details that are essential factors for a good surfing. There is also technical language that shapers (the ones making the boards) usually use to name board sections and shapes. Some concepts you need to take into account for your board are:

Rail. Designed using a technique influenced by aerodynamics. The rail is usually a factor not taken into account by those beginning to surf. The rail shape can become essential to be able to have a board meeting the requirements. A very round rail, for example, can strongly stick to the wave face. A sharper rail can cut the wave and slide faster. For example, the Gun board is usually a board having a sharper rail, since it needs a greater speed for open curves, because it is used for big waves. The more curved rails, on the contrary, allow for a greater manoeuvrability on limited spaces. The rail can also vary throughout the board; from the nose down, the rails are usually round and curved, since a greater catching is required. The lower part, the keel zone, usually has sharp rails to have a quick exit from the water flow.

Bottom. It is the bottom part of the board, slightly concave. It is not flat either, and since it is concave, it makes it easier to exit from the water coming underneath, helping the board to float better and slide easily. This is usually called “board support strength”. A concave bottom, then, helps the water flow to be oriented and accelerated. In a convex bottom, on the contrary, the water flow is usually stopped and dispersed. That is why there are usually a couple of concave canals made from the keel zone to the board tail, to make the exit from the water flow easier and improve the speed. This factor is usually overlooked; however, it is a crucial factor to distinguish between a good and a bad board.

Tail. As we know, the surf board tail is usually sharper and thinner and it is composed of the so-called keels, helping to drive the board. However, there are many variants such as square tail, round tail or fish tail, among the most well-known. The last one usually has canals on the bottom of the board, helping the speed. There are some other types that basically mix the previous tails such as squash tail (combining round and square), pintail (sharper) and swallow tail (more curved that fish tail).

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