What is the compression on a 1978 20hp mercury outboard?

Does the shape of the sailboat affect its sail? What did President Wilson threaten if the Unrestricted Submarine Warfare continued? How old must you be to legally operate a vessel towing a person on water skis in Maryland? What material was the first boat made out of? Which is pfd is designed to be thrown to someone in the water? What device is now used to collect samples of deep-sea water at predetermined depths? Advise me please how one applies for a mooring buoy permit in the lake okanagan bc? What is the oil gas ratio for 6 hp 1971 evinrude? What was a sails on a Tudor ship? Is the bow the front of the boat? What color are mid channel buoys? What us a give way boat? What is the takeoff speed for a Boeing 727? Did Chrysler make outboard motors into the 1990's? Who sings the song on the Carnival Cruise commercial with the words 'fun fun fun' in it? How does sailing rely on waves? What type of bouy is white and has orange markings and black lettering? What must be aboard and a 22 foot powerboard? How many boats are sailing the ocean at one time? What type of PFD will turn most unconscious persons face up in water?