What does a sail batten do?
What does a sail batten do?
Battens are the primary structure of a mainsail. They support the sail’s shape, improve overall durability by limiting the effects of flogging on fabric, and remove any limitation on size (roach area). Full-length battens in the top sections of the sail are now common.
Do sails need battens?
Battens are absolutely needed on any sail that has any positive roach. This means sailcloth that is over the direct line between the head and the tack. Any such sailcloth cannot be tensioned by sail trim, and will flap uncontrollably when sailing unless the area is stiffened with battens.
How do you secure sail battens?
- Step 1: Lay out the sail and identify the battens. Lay out the sail with the batten pockets facing up.
- Step 2: Insert the batten into the pocket.
- Step 3: Insert the tensioner.
- Step 4: Secure the pocket.
What is full batten mainsail?
On a full-batten mainsail, all the battens run the entire width of the sail, from leech to luff, usually parallel to the boom. Partial battens just run a few feet in from the leech, typically perpendicular to the straight line between the head and the clew.
Which way do battens go?
Make sure the battens are inserted with the tapered (thin) end towards the luff and the stiffer (thick) end towards the leech.
What is a lazy jack system for sailing?
Lazy jacks are networks of lines that are rigged along each side of the mainsail from multiple points on the boom or a stack pack to a point on the mast just above the spreaders, at about 60% the mast’s height. Their purpose is to hold the mainsail on top of the boom when it is lowered.
How far apart should battens be?
But how far apart should each batten be? Typically, batten are spaced anywhere from 12” to 24” apart.
What are the symptoms of batten disease?
The first signs of Batten disease include:
- Vision loss (this symptom does not affect adults with Batten disease).
- Epilepsy (seizures).
- Cognitive problems, trouble learning or difficulty keeping up in school.
- Problems with speaking.
- Clumsiness and issues with coordination, balance and movement.
How tight should sail battens be?
You don’t want the batten to be so stiff that it doesn’t pop through onto the next tack. My rule of thumb on the dock is to tension the batten until the Rocket retainer loop on the leech end of the sail is snug and can’t come loose.
What are sail battens made from?
A sail batten is a flexible insert in a sail, parallel to the direction of wind flow, that helps shape its qualities as an airfoil. Battens are long, thin strips of material, historically wooden but today usually fiberglass, vinyl, or carbon fiber, used to support the roach of a sail.
Why are battens better for sailing than sail?
More structure equals less flog and quieter luffing (as when taking a reef). Reduced flogging will preserve the resination that holds woven materials together and makes them stretch resistant.
Which is the primary structure of a sail?
Battens are an important part of the sail structure, but with many different options and different use cases, it can get confusing. Here is the lowdown on battens and what you need to know to choose the right ones for your sailing needs. Battens are the primary structure of a mainsail.
What do Batten receptacles do on a sail?
Batten receptacles are the boxes that contain the batten on the luff end and connect the sail to the mast. They eliminate chafe and wear. Ideally they have a stainless steel, articulating universal joint to keep the batten from pushing forward while allowing the batten to spin independently of the slide.
How are battens used in a quantum sail?
In the lower sections of the sail, the roach is a smaller percentage of the cord, so the battens don’t have as much work to do. Full-length battens carry the compression loads all the way to the mast. If the battens are shorter, the loads are transferred to the material of the sail wherever they end.