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Materials

Another advantage of 'One-Design' is the freedom to allow competitors to build their own items such as sails, rudders, centreboards and rigging. This ensures increased strength and extended competitive life of components as modern materials become available, which in turn leads to a lower maintenance and replacement cost over a longer period.

An example of this is from a one-manufacturer class an item such as rudders can become a costly replacement if the materials chosen by the manufacturer cannot be upgraded due to its "must be purchased from the manufacturer" rules.

Rigging is another example of high cost replacement. If the manufacturer chooses a lower grade material or part in order to keep the "new purchase price" of the boat down, in the long term it is the competitor who will have to replace that item as it quickly becomes worn-out, breaks down or simply out dated. A fine example of this is with pulley blocks or traveller cars where simple technology leads to a dramatic decrease in replacement cost due to the "one-design" ability to change and up grade such items.