How fast are sail boats MPH?

Where did the first attempted attack of a warship by a submarine occur? What the normal operating temperature of a 1988 Mercury 454 330 hp Bravo One marine engine? When can a navigation be over looked on a boat? What is the area between the red and green buoys? How many feet long is the Oasis of the Sea cruise ship? What is another name for the boat's serial numbers? How fast can a sailboat sail? Why is a boats left side called port side? What year is a Johnson outboard model number j110tlcur serial number r741397? What was the wharf like when the steamboat arrived each day? A boat sails along the sea what does a submarine do under the sea? Have horses been used to pull boats? How much would a Johnson Seahorse model J2RCOC be worth? How much water does a 1990 Winnebago chieftain hold? What is the fuel mixture for a 1990 Johnson outboard 15 hp? What is Petrol oil ratio force 3 hp outboard? Can you turn off water to oil furnace and use an electric water heater in its placethe furnace supplies hot water and baseboard heatbut i have a pellet stove to heat the houseso i would like to use? What maintenance needs to be done to a Jet Ski while in the winter season? Sailing vessel with three or more masts? Where can one find information on purchasing West Marine products?