Not to be rude, but really, while the internet is a great place to have questions answered, good old fashioned reading and research are still a great way to answer basic seamanship questions, not to mention an excuse to build a small library (or ebook library if you want to save space!) of resource material for your own 'search' function. The internet is a much better place for answering practical experiential problems like, "When we did X, Y happened. We expected Z. What did we do? Any thoughts?", or when looking for very specific, localized information. The question that the OP poses is fine, but there's clearly a level of inexperience that's hard to address without going through half of a basic cruising manual. Again, this is said with due respect, so apologies if any offense is taken. It isn't my intent at all.