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) Gold Coast, it is known as Jupiters 21, in the Reef Casino, Cairns, it is known as Paradise Pontoon, and in Tasmania, it is known as Federal Pontoon. The British blackjack variant called pontoon is played in the UK and Commonwealth with single 52-card decks. British pontoon uses the terms "twist" (hit), "stick" (stand) and "buy" (double the bet, not to be confused with doubling down) and a different set of rules. The rules for buying in pontoon include allowing the player to buy on any hand of 2 to 4 cards, allowing the player to twist after he buys.