Trimaran sailplan. They contribute to drag when heavily immersed, and their level of immersion indicates when to reef. Two types of trimaran exist: the regular trimaran and the open trimaran, which features a trampoline between the hulls instead of plating. Trimarans have a number of advantages over comparable monohulls (conventional, single-hulled sailboats). Given two boats of the same length, the trimaran has a shallower draft, a wider beam, less wetted area, and is able to fly more sail area. In addition, because of the righting moment provided by the wide beam, trimarans do not need the weighted keel that is required
Pontoon (card game) Australia was comparable in popularity to Blackjack, so there are more Pontoon tables available in Australian casinos than Spanish 21 tables in American casinos. Unfortunately, in response to the release of the book "The Pro's Guide To Spanish 21 and Australian Pontoon" by Katarina Walker, Burswood Casino in Perth has withdrawn the game from the main floor and Crown Casino, Melbourne, have withdrawn the game from their VIP Mahogany Room and introduced continuous shuffling machines to some of the pontoon games in the main hall. Any hand-shuffled or automatically shuffled pontoon games at Crown Casino have penetrations below 75%, rendering