What year is evenrude model 50573b serial number e006027?

What instrument measures a boat's heading? When a ship is sailing towards you why do you see it's masts before its hull? How do you change water pump gear on 1989 Johnson 150 boat motor? What is an outboard engine? How long does it take to sail from Scotland to Australia by boat? Steering wont work in Cajun bass boat why? Why do inflatable snowmen deflate overnight? Do you need a boating license to drive a jet ski in Florida? What is the Portsmouth yardstick for the Martin 16 keel boat? A motorboat is approaching a sailboat head on What should happen? What is the reliability of a mercury 150 hp efi 2 stroke outboard engine? What year is suzuki engine serial number N727-111897? How deep can a submarine go into the Marianna Trench? What is fuel to oil ratio for a 1959 Johnson 3 horse outboard? Is a hull a proper or common noun? You are operating a powerboat at night. What if your green sidelight must be visible to boats approaching from which direction? Do you have to put motor oil in the engine of a Jet Ski or does it run off the two cycle oil that you mix with the gas? What kind of rope is used in life boat painter? What do you mean by mt vessel? What is the floatation device life guard use called?