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Sail Construction Detail

Our sails are warranted for at least 3 years.

The sails you purchase from Liberty Sail and Canvas Loft are computer designed and cut, built from the highest quality woven Dacron, and made for superior shape holding. They are designed for the sailor who truly values performance and durability.

Each sail utilizes Dupont's high modulus type 52 Dacron fiber. It is constructed with a tightness and weave balance that locks the fibers together so it is not dependent on resin for its long term shape.

Our sails are computer designed and cut

There are four primary factors that affect the quality and cost of Dacron sailcloth:

1. YARN QUALITY
Yarn quality varies in terms of tenacity (breaking strength), modulus (resistance to stretch), creep (long term stretch) and "weaving quality. " A high tenacity, high modulus yarn produced specifically for weaving is the most desirable and also the most expensive.

2. YARN CONTENT
Yarn content relates to the aspect ratio of the particular sail. Lower aspect sails (number 1's) require a more balanced weave, with fibers of similar denier and count in the warp and fill. Higher aspect ratio sails such as blade jibs and high aspect mainsails require more, heavier fibers along the load lines and fewer across the sail.

3. TIGHTNESS OF THE WEAVE
The tightness of the weave varies for a number of reasons, including:

  • The size of the yarns employed; The smaller the yarn denier, the tighter the weave.
  • The shrinkage of the yarns employed. Higher shrink yarns will produce a tighter weave than lower shrink yarns.

4. TYPE OF FINISH
The type of finish used on the sail greatly affects the feel of the material. Also, highly resinated materials often rely on the resin for stability and when, after extended use, the resin begins to break down, the sail begins to change shape. Resin quality and quantity greatly affect the overall quality and cost of the sailcloth.

 

We do not believe in the practice of re-conditioning sails by re-resinating.  Sails that are old and have distorted shapes will still be old and distorted after the resin wears away in a few seasons.  The heat process that is employed tends to shrink boltropes and leech lines compounding the problem.  The cost of a new sail is by far a much better value.

 

Mainsail

Challenge or Bainbridge High Modulus sail cloth (high resistance to stretch).  Made in the USA

Computer designed and cut

Reinforced Reef Points on most sails
Mainsail reefs are used to depower a boat as wind speed increases. Reefing makes the mainsail smaller and flatter. Each row of reefs consists of a heavily reinforced patch with a grommet at the luff for the tack horn and a grommet at the leech for the reefing outhaul. Between the reefed tack and clew we install a row of evenly spaced smaller grommets called reef diamonds. They provide a way of gathering up and tying off the excess sail.  No loads should be put on the interim points. They are used just for house keeping

Reinforced batten pockets with front-end elastic to hold battens securely.

Adjustable leech line and cleat. Controls leech flutter in high winds or as the sail ages. Fluttering not only impedes performance, but also increases wear on the sail.

Rugged corner and reef patches that ensure long-term durability.

Internal bolt-rope adds strong luff reinforcement, with fastened slides or slugs. Standard on most sails. 

Draft Stripe: A colored, horizontal stripe that helps you determine the draft depth in your sail.

Aluminum Head Board.

Hydraulic pressed rings, tack and clew

Double or triple stitch seams.

Telltales

Sail ties

Sail bag

 

Headsails

Challenge or Bainbridge High Modulus sail cloth (high resistance to stretch).  Made in the USA

Computer designed and cut

Adjustable leech line and cleat. Controls leech flutter in high winds or as the sail ages. 

Rugged corner and reef patches that ensure long-term durability.

Foam luff  (roller furling headsails) A foam luff provides better sail shape by flattening the head sail as it is furled. This means improved performance in reefed conditions.

Sewn in bolt rope with brass hanks (hank on headsails)

Double or triple stitch seams

Telltales

Sail bag

 

 

 

 

Liberty Sail and Canvas Loft, We are independent sail makers.   Custom boat canvas and cleaning.  Custom cruising sails and racing sails.  Serving the Philadelphia, New Jersey Delaware Eastern Pennsylvania,  PA. and all 50 states. USA made in Lansdale, PA .