How many fire extinguishers are required aboard an 18-foot powerboat with installed fuel tank(s)?

Is it yatch or yacht? Did David Bushell invent the Torpedo submarine? What part of the boat rotates to power the boat forward and backward? Who sailed in a yacht around the world? What Military Cruise deals are available? What is the average distance traveled by a sailing ship per day? Boaters have a responsibility for the environment. What is one of the three R's? What is a room in a boat called? Who regulates speed limits and shoreline zones for boating? What direction should the masthead light be visible from while boating at night? What did submarines mean? You are rebuilding the rear of a 28ft cigarette boat and can't decide whether to put 1 Mercury 454 engine with a bravo outdrive or twin 350's Any advice on which would be better? Did MacArthur take any of his office furniture on the PT boat when he fled? What is the proper oil mixture for a 1985 mercury outboard 115 hp? Do you drive or stear a submarine? Who sings the song on the Carnival Cruise commercial with the words 'fun fun fun' in it? How much does a Yamaha 80 hp 4 stroke outboard weigh? Why is a keel used? What are can buoys marked? Which vessels also must have one Type IV PFD on board?