MAINSAILS

Whether you’re racing to win or cruising unexplored waters, you deserve a mainsail that delivers. Investing in a new sail is significant, and we understand its importance. At Loong Sails, we meticulously develop, test, and refine our sail designs to provide your boat with unmatched power and control. Experience enhanced boat speed and a smoother ride with Loong Sails. Set sail confidently with us.

RACING MAINSAILS

Experience unmatched speed and control with Loong Sails’ racing mainsails. Custom-designed for competitive sailors, these lightweight, durable sails offer aerodynamic superiority and precision engineering. With Loong Sails, find your winning edge and elevate your performance on the water.

CRUISING MAINSAILS

The sensation of perfect balance is undeniable. Loong Sails’ cruising mainsails are designed to provide that effortless control, allowing the boat to almost steer itself. Durable, easy to handle, and optimized for stability, these sails enhance your cruising experience with comfort and reliability. Explore Loong Sails’ expertly crafted cruising mainsails today for your next adventure.

MEMBRANE 4D MAINSAIL

Loong Sails’ Membrane 4D Cruising Mainsail offers unmatched balance, control, and durability. With custom construction, it’s stronger, lighter, and smoother, providing superior sail performance. Designed with advanced fiber placement, it maximizes wind control and stability, making it the perfect choice for effortless cruising.

Customised Options

Batten

Sail battens serve as a framework for the tent, which holds the mainsail fabric taut and smooth. They also provide support to the area outside the straight slope between the head (the top of the sail) and the clew (the bottom back corner of the sail furthest from the mast), which would otherwise flap uncontrollably due to the wind.

Furthermore, sail battens are instrumental in providing stability to the sail. Their unique design, with a stiff back end and a tapering front, acts as robust beams that resist the forces attempting to compress the leech towards the luff when the sail is sheeted. This preservation of the open sail shape prevents it from becoming more semicircular and fuller (rounded leech) as the winds and loads increase. The result is a sail that instils a sense of security, with a flatter shape and a straight, open leech that ensures the boat stays upright on the water.

Reefs

Reefing is a technique used to reduce the sail area of a sailing vessel during strong winds. It involves folding or rolling one edge of the canvas and attaching the unused portion to a spar or stay. Fore-and-aft rigged vessels store the unused portion of the sail on a boom below the sail, while square-rigged vessels stow it on a spar above the sail. Easy reefing is made possible by reinforced patches on the luff and leech and heavy-duty press rings. Our standard reef point positioning is 15%, 30%, and 45% up the luff. The first reef point is included with all our sails as standard.

UV

Furling Mainsails have a cloth that provides UV Protection to safeguard the sail against sun exposure. Our most commonly supplied UV Protection options include different colours. However, we offer various customization options for the sailcloth and colour selections to make it truly customized. 

Insignia

An insignia is the sailboat manufacturer’s logo, usually placed towards the top of your mainsail. These are laser cut from insignia cloth, a special heavy-duty UV-resistant sticker material in blue, black, red, green, and yellow. Insignias can also be printed onto your sail to minimize weight. 

Sail Number

The identification numbers known as sail numbers are typically affixed to the mainsail. These numbers serve the purpose of identifying the sailboat in races and also help in emergency situations on water. Insignia cloth is used to apply our standard sail numbers.

Gallery

TYPES OF MAINSAILS

TypesDescription
Standard MainsailsThe most common type, featuring a triangular shape with one or two sets of battens. Versatile and suitable for a wide range of wind conditions and sailing angles.
Full-Batten MainsailsEquipped with battens that extend from the luff to the leech, offering enhanced support, sail shape control, and performance in stronger winds by reducing flapping and improving aerodynamics.
In-Mast Furling MainsailsDesigned to furl inside the mast for convenience and easy handling, deployable from the cockpit. While user-friendly, they may sacrifice some performance due to shape limitations.
Slab Reefing MainsailsFeatures multiple reef points, allowing for sail area reduction in stronger winds by lowering the sail and securing it with reefing lines. Highly flexible and popular for cruising and offshore sailing.