A catboat (alternate spelling: cat boat), or a cat-rigged sailboat, is a sailing vessel characterized by a single mast carried well forward (typically near its bow). Generally a catboat has a light and shallow draft hull, wide beam approximately half its length, is gaff rigged, and carries a centreboard. Although any boat with a single sail and a mast carried well forward is 'technically' a catboat, some catboats such as the Barnegat Bay type and more modern designs carry a Bermuda sail. A jib is sometimes added, but this may require a bowsprit, and technically creates a sloop sail-plan.