In this video you will learn how to sail faster with the right sail trim.
Among other things, the effects of the travel position on the mainsail twist in light wind and strong wind are explained.As well as how to handle the telltales on the headsail and mainsail.

The Grabner Sailing Academy Team wishes you lots of sailing fun!

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If you want to get the best performance out of your boat, this video is for you.

Let's start with the sail trim:

For efficient forward thrust, the mainsail should always have a good profile. Tension the battens with finesse.

In strong winds, pull the luff cunningham down hard. The sail profile becomes flatter and the sail opens at the top. This gives the sail the best performance and control at high wind speeds.

In light winds, sail with less luff tension. This makes the profile deeper and generates more forward thrust.

You can also trim the mainsail using the clew board: In strong winds, hook the sheet to the front, and in lighter winds, hook it further back. The forward position pulls the sail flatter, relaxes the leech and thus allows more twist in the upper area. The sail profile becomes flatter and the sail opens at the top. This is advantageous at higher wind speeds.

The rear position gives the sail a deeper profile and thus more forward thrust in light winds. The leech is more taut and reduces the twist – ideal for lower wind speeds.

By rotating the mast, you can influence the bending of the mast and thus the sail profile. As a rule of thumb, just remember: In light winds, let the mast turn further away. The stronger the wind gets, the tighter you should pull the rotation arm.
On headwind courses you can also open the rotation arm a little bit more.

Of course, you can also trim your headsail to optimise performance.
Tension the luff over the thin white line – make sure the luff is only slightly taut so that there is never a nose on the luff.

An optimal sail position is particularly decisive. Beginners will find it easiest if they ease the sail until it starts to flutter.

Then you get it taut enough until it no longer flutters. It is also very important not to pull the sail any tighter, as this would slow the boat down and create unnecessary drift.

Experienced sailors orientate themselves by the telltales that are located on the windward and leeward side of the headsail and on the leech of the mainsail on the Happy Cat.
Let's start with the headsail: When the sail is in the optimum position, both telltales should lie nicely against the sail. If one of the two telltales is no longer in place, it is a sign that the sail is not in the right position, which means that we must move the sail towards the telltale. So if the telltale is not on the leeward side, we have to furl the sail, if the telltale is not on the windward side, we have to bring the sail closer.

You control the optimum position of the mainsail at the trim telltales on the leech. If both telltales point straight back, the sheet can be pulled tighter.
If both telltales are blowing to leeward, the sheet can be unfurled a little.
The sail position is ideal when the upper telltale occasionally blows to leeward and the lower one straight back.

If you want to run at maximum height, the fine trim is often done via the rudder. This means that the sail remains hauled tight. The lowest sail batten should be at least 10 cm to leeward.

In light winds the traveller can be placed to leeward and the mainsheet hauled tight. In stronger winds, more twist can be advantageous for an optimal flow across the entire mainsail. To do this, move the traveller a little to windward and furl the mainsheet until the lowest sail batten is about 10 cm to leeward again. Now the mainsail twists out more at the top where the wind is stronger and is thus exposed to even better airflow.

The perfect course is now influenced by sensitive luffing up and bearing away. If the telltales of the headsail are no longer on the windward side, you will bear away easily. If the current on the leeward side breaks off, then you have to luff.

0:00 Faster sailing with correct sail trim
0:15 Mainsail: batten tension, mainsail luff cunningham, clew board, mast rotation
1:55 Headsail: luff tension, sail setting
2:36 Telltales headsail
3:19 Telltales mainsail
3:49 Close hauled sailing: Traveller light wind, strong wind twist
4:53 Maximum close hauled sailing
5:26 Speed: Close hauled, beam reach
5:56 Weight trim: Upwind, downwind
6:16 Trapeze



SailCatamaran Grabner HAPPY CAT:
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10 Advantages Grabner HAPPY CAT:
https://www.grabner.com/en/10advanta...

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