Talk about thread drift! Let's look back at the OP's message:
Originally Posted by package81
I am dabbling with the idea of sailing someday. It is one of my dreams to sail accross an ocean...
It's clear that this guy is a long way off from an ocean passage. It will be many years before he is ready to sail across the ocean, and he may never work up to that point. But that's OK - sailing is about the journey, not the destination. If it were about the latter, there are other faster/cheaper/easier ways to get there.
I suggest that the OP get started with a sailing school, or find a friend who owns a boat, or if he wants to dive in head first buy a daysailor and start learning and enjoying in protected waters. Only then can he answer the other questions that he has asked. If he never gets to cross an ocean, he'll still have a lot of fun.