How To Sail: Sail Trim Basics -- Sailing Basics Video Series

Sailing to the World
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Hey guys, sail trim is an art. In this video we're not going to go into the super advanced stuff,
we're going to give you guys the basic tools and tips to help you with your sail trim. This will
help maximize your speed, it's going to help you be better trimmed than 90% of the sailors on the
water, and it's going to help you get the most out of your sails. Let's talk about how to get perfect
genoa trim first. So many charter boats and many boats that you're going to be on, you're going to
notice that the telltales are off, they're missing, and so we're going to give you a few tricks that
are going to help you see where to put that genoa in relation to the boat for the different points
of sail. Let's start with a close haul. A close haul is 45 degrees to the wind, it's kind of the
closest we can sail to the wind. Here our genoa is going to be really tight. It's usually going to be
just inside the lifelines or right kind of over the lifelines, as tight as it'll go. Next point
to sail down is a close reach, that is 60 to 75 degrees from the wind, and what we're going to notice
here is that we're now easing our genoa out a little bit, and the foot of the genoa at its
widest point is one to two feet from the lifelines. The next point to sail down is a beam reach, which
is 90 degrees to the wind. We're going to ease our genoa out a little bit more, and here you'll notice
that the foot of the genoa is about three to four feet from the lifelines at its widest point.
After this we go to a broad reach and a run. A broad reach is about 120 to 150 degrees from
the wind. You're going to notice that your sail trim on a genoa is very similar for a broad reach
and a run. What we're looking for here is we want the genoa to come off of the furler at a 90 degree
angle. Some folks will over ease it, and as you ease out that jib sheet you'll see that the genoa
has a tendency to start going in front of the boat, and that actually reduces the slot where the
wind can catch the genoa. So really important the genoa should be coming off at a 90 degree angle
from the furler. To really fine-tune our genoa sail trim we've kind of talked about roughly where
the sail is going to be in relation to the boat. Now if you have telltales on your boat, which
hopefully you will, you can really use your telltales to get the precise and perfect sail trim.
Sometimes here it can honestly be a game of moving that jib sheet an inch to get perfect sail trim.
You'll notice that there are telltales on the insides of your sail and on the outside. The rule
of thumb is if your inside telltales are luffing, bring it in. If your outer telltales are luffing,
let it out. So in, bring it in, out, let it out. You'll also notice that there are rows of telltales
on your genoa. Usually there's about three if not four rows. We really want to make sure the
bottom most rows are flowing back really nicely. That's where we're getting most of the power from
in our genoa. The top telltales can be luffing about 50 percent of the time. If you notice that
the telltales on the top of your genoa are consistently just going all over the place,
one of the common mistakes here is that the jib car on the track is too far back. Try moving that
forward a little bit and that will just help with the sail trim on that upper telltale.
Let's look at main sail trim now. Just like we said when we were talking about genoa trim
on charter boats, often there may not be any telltales on your main. So let's talk about
where your boom should be in relation to the boat for each point of sail. On a close haul,
your boom should be right down the middle of the boat, center line on the boat. On a close reach,
your boom should be pointing towards the back corners of the boat. On a beam reach,
your boom should be right over the primary winch. When we go down to a broad reach in a run,
we want to let our sail out as far as it'll go. In an ideal world, we put it at 90 degrees to the boat,
but with swept back spreaders on most modern sailboats, that's not an option. So the trick
here is to ease your sail all the way out. Your boom should be out as far as it'll go
without your sail hitting or chafing with that spreader. Don't want it chafing on the spreader
or it can slice and cut your main sail. So that's roughly where your boom should be for each point
of sail. That's going to get us really close. And now in an ideal situation, if you have telltales,
we can use the telltales to get that perfect tuning on our main sail and to get perfect
sail shape. You'll notice like on the genoa, there's usually three to four rows of telltales
on your main sail. The trick with telling main sail trim is those telltales are on the very
back of your sail, on the back edge or on the leech edge of your sail. When those telltales
point out, break out or point towards say the port side, you want to ease your sail out to port.
If the telltales are breaking in or pulling towards your starboard side, that shows that you
need to bring your sail in. What you're going to notice is on a perfectly trimmed main sail,
your bottom telltales are all streaming beautifully back.
Your topmost telltale should actually break or flutter about 50% of the time.
