What does the boat to find a yellow flag from the bow mean?

How good is the JP Australia freestyle wave for freestyle? When loading a small open boat what should you do? What is the gas to oil ratio for a 20 hp outboard? Who owns the yacht slow hand? What is being signaled when you hear five short blast from another vessels? What should you do if you put in a new hot water tank but now you have no water pressure? What was the largest hovercraft in1968? How does a steering wheel on a boat steer the boat? What is the best place to put PFD while out on your boat? What year is Johnson boat motor serial? Where WHITE navigation light be located on the following powerboat? What is the requirement for coast gaurd assistance when a vessel is aground? Did the Japanese use submarines in World War 2? When were lateen sails invented? What is a mourning buoy? How many ships were sunk by US submarines in world war 2? You are docking your boat. There is no wind or current. What is the best way to dock? Where can you find a list of Mercury serial number identification? What happens when you are operating a boat and your boat's wake causes damage? What is required when towing a person on water skis or other device behind a boat?