Using wind to move on water is not only romance, but also a proven way to significantly expand the capabilities of the boat. Sail for the inflatable boat It turns a conventional rowing boat or a motorboat into a complete vessel that can travel long distances without the cost of fuel. Many PVC boat owners underestimate the potential of sailing equipment, considering it the lot of professional yachtsmen, but modern solutions make it easy to equip even a small inflatable model.
The main advantage of this modernization is the autonomy and quietness of the course. petrol-engineThe sail does not require a fuel supply, does not make noise that scares off fish, and does not create vibrations. Properly installed sail allows you to develop a speed comparable to the engine with a capacity of 2-5 hp, with a favorable wind. This makes the boat ideal for long expeditions, fishing or just relaxing on the water.
However, it is worth considering that the inflatable body has its own specifications, different from rigid fiberglass or metal. Sailing boats are high and draft is small, which requires a special approach to balancing and management. Before buying or manufacturing equipment, you need to carefully study the design of your boat and understand the principles of aerodynamics, so that the walk does not turn into a fight against the elements.
Types of sails for inflatable boats
The choice of sail type depends on the design of the boat and the purpose of use. Inflatable models are most often used two main options: oblique and straight sails. Oblique sails, such as: Bermuda or gaffeThey allow you to maneuver, which is to swim at an angle to the wind, which is critical for maneuvering. Straight sails are only effective in strictly favorable winds.
The most popular solution for homemade and factory kits is the oblique sail, which is easy to operate, has a small area and is easy to retrieve, and there are also rotary sails that are mounted on a mast and can rotate around a vertical axis, which makes it easier to change course, depending on whether you are willing to put up with a mast that you have to hold your hands constantly or fasten in a special glass.
- 🌬️ Bermuda sail Triangular shape, high efficiency, the ability to walk steeply to the wind.
- ⛵ Gaffe sail - quadrangular shape, requires additional rake (gafel) in the upper part, more stable.
- 🌀 Turning sail - fastened on the mast, rotates around the axis, easy to set and clean.
It is important to understand that the sail area should correspond to the displacement of the boat. Too large a sail on a light inflatable boat can lead to dangerous rolling or even overturning when a gust of wind. The optimal area for a single or double boat is usually from 3 to 5 square meters. For heavier models with three or more passengers, the area can be increased to 6-7 m2, but only with an experienced helmsman.
⚠️ Attention: Never use a sail of more than 5-6 m2 on a standard two-seater boat without an experienced crew. A sharp gust of wind can instantly flip a vessel with high sailing.
Sail material also plays a role. Self-made structures often use dense synthetic fabric, polypropylene film, or even old polyester curtains. Factory models are made of dacrone or lausan, which are resistant to ultraviolet and stretching, the main requirement is low air permeability and high tensile strength.
Equipment and equipment required
A single canvas is not enough to make a sailing system work properly, you need to assemble a whole suite of equipment that will provide mounting, control and safety. The basis of the entire design is the mast. Inflatable boats are ideal for telescopic fishing rods, ski poles or special aluminum pipes with a diameter of 30-40 mm. The mast should be light but rigid enough to withstand the wind load.
The mast is fastened into a special glass (mast glass) that is mounted on the transom or paiola of the boat. If the boat with an inflatable floor, the glass is often cut into a floorboard or used removable structures that rely on cylinders. A scotch knot or scotch shackle is necessary for attaching the ropes that control the sail, and you will also need flaps to lift the sail and sprints (sprutting) to maintain the shape of the sketch.
Rigging is divided into running and standing. Standing rigging keeps the mast upright, although small boats often do without the ropes, holding the mast with their hand or using a stop in the transom. Running rigging includes shocks and facades. The best ropes are synthetic materials that do not rot and slide well, such as a polypropylene rift with a diameter of 4-6 mm.
☑️ Assembly of the basic kit
Special attention should be paid to the squirrel (or lower unit), which is an underwater wing that prevents the boat from being blown by the wind. Without a squirrel, the boat will move not where the wind blows, but where it will blow away by the current and wind, almost without listening to the steering wheel. For inflatable boats, they make removable plywood or plastic squilts that are lowered into the water through special slots in cylinders or mounted on a transom.
Installation of sailing weapons DIY
Mounting sailing equipment onto an inflatable boat is a creative process, but it requires precision. Start with the installation of a masted glass. If the boat is equipped with a transom, the glass can be secured to the inside of the transom using bolts and wide washers to avoid damaging the PVC. For boats without a trench, the glass is attached to a transom jar or floorboard using additional stops on the sides.
The next step is to prepare the sail, and the angles of the sail (fail, topping up, and slack) are sewn or riveted by the luvers, and the slat corner is inserted into the phalanx corner, which lifts the sail, and the galley corner is attached to the bottom of the mast or to the duck on deck, and the skewer is connected to the skeletal that holds the steering wheel, and it is important that all the mounts are reliable, because the load on them increases exponentially as the wind increases.
| Element | Materials | Function | Location of anchorage |
|---|---|---|---|
| Mast | Aluminum, fiberglass | load-bearing structure | A glass on transz/floorboard |
| Sail. | Dacron, lausanne, tarp. | Wind capture | Faal, gals, scot. |
| Schwertz | Plywood, plastic | Fighting drift | board or trench |
| tiller | Wood, metal | Steering control | Steering wheel |
When installing a sail on an inflatable floor boat (BBB), you need to be especially careful. The pressure of the mast on the floorboard can lead to its deformation or damage. In such cases, it is recommended to use the distribution pads under the glass or to lean the mast directly on the transom, if the design of the boat allows, and it is also worth considering the possibility of rapid return of the fail, in an emergency situation, to instantly remove the sail.
Nuances of fastenings on inflatable floor boats
On boats with NDND, you can't just stick your mast with pumped cylinders or thin floorboard without reinforcement. The pressure of the point can exceed 100 kg / cm2 when you jerk, which will lead to a breakdown. Use wide platforms of plywood 10-15 mm, distributed over several cylinders, or trans mounts.
Control and navigation under sail
The sailing boat is very different from the motor boat, and you depend on the direction of the wind, and your course is determined by the angle between the direction of the wind and the direction of the boat. The basic rule is that the sail must be filled with the wind, but not sputtering. If the sail flaps, then the wind breaks, and there is no thrust. If the sail is too much chosen, the boat begins to tilt and loses speed.
There's a beidewind, which is going against the wind, but at an angle. You can't swim directly against the wind, you can't swim right up there, you can't swim about 45 degrees each side of the wind, and you have to zigzag to get to the point that's in the wind, you have to go through the fordevind (when the wind is blowing in the stern) or the beidewind (when you put the boat's nose through the wind line).
- 🧭 Full bakstag The wind blows from the back, the fastest and most comfortable course.
- 🌬️ galfwind The wind blows perpendicular to the side, optimal for stability.
- ⛈️ Baydewind - movement at an acute angle to the wind, requires accurate adjustment of the sail.
The helmsman must constantly monitor the changes in the wind and position of the skid. In an inflatable boat, the center of gravity is low, but the sail creates a high center of sail, which causes roll. When you roll hard, you must poison (let go) the scoot so that the sail loses some of the thrust and level the boat. Experienced sailboats also use their weight by moving to the windward side to counter the roll.
⚠️ Attention: When the wind is stronger to the storm, don't try to row heroically against the wave. Better put the boat with its nose to the wind (drift) or remove the sail and wait out the bad weather at the shore. Inflatable boat with sail in the storm becomes an uncontrollable toy.
Safety and limitations of operation
Safety on the water is priority number one. Sailing equipment adds not only speed but also risk to the boat. The main limitation for inflatable boats is wave height. At a wave above 0.5 meters, controlling a sailing inflatable boat becomes extremely difficult and dangerous. Soft sides do not hold the shock of the wave, and the sail can play the role of a catapulting device at this point.
The second important aspect is that all passengers have life jackets, and if they roll over, which is more common on an inflatable boat than on a keel yacht, the vest will save lives, and it's also worth remembering that a sailboat requires more space to maneuver than a motorboat, and it doesn't stop instantly, and it's a lot of inertia when you turn.
Always check the reliability of the fasteners before going out on the water. Weakened flap or rubbed scoot can cause loss of control. If you use a homemade mast, make sure that it is free of cracks and defects. Wind load on the mast length of 3-4 meters with a wind of 15 m / s can reach several tens of kilograms of force.
Tip: Always bring a spare set of ropes (fails and skeletals) and synthetics can rub against luvers or sharp edges of paiola at the most inopportune time.
Comparison of factory and homemade solutions
The market offers a variety of sail options for inflatable boats, from cheap Chinese kits to high-quality domestic developments. Factory sails tend to have ready-made patterns, reinforced seams and a full set of rigging. However, their price can be comparable to the cost of the boat itself. Homemade options allow you to save and adapt equipment to a specific model, but require time and skills.
Factory kits are often versatile, which is not always a good thing. Fastenings may not fit your boat, and the sail area may be redundant. A homemade sail, made from the right fabric and tailored exactly to the size of your boat, often shows better driving performance. The main thing is not to save on the strength of the seams and fasteners.
The best choice for a beginner is a ready-made set of sailing equipment of a proven brand, adapted to the size of your boat, which guarantees safety and predictable behavior on the water.
If you're going to make your own sail, start with a simple design: a straight sail is easier to set, but it's less functional; a slanted sail is harder to cut, but it gives you freedom of maneuver; use proven blueprints and feel free to consult experienced sailboats. A mistake in calculating the area or the center of sail can make the boat unstable.
Frequently Asked Questions (FAQ)
Can I use a sail on a boat with an outboard motor?
Yes, you can. The motor is usually hung out or removed to reduce drag and weight on the transom, and if the motor is left, it needs to be securely fixed in the raised position so that it does not interfere with the control and creates additional roll.
What is the best wind for a sailing inflatable boat?
Comfortable and safe is considered to be wind speed from 3 to 8 m / s When the wind is weaker than 3 m / s, the boat will move slowly, and when the wind is stronger than 10-12 m / s, the control will be dangerous, especially for inexperienced helmsmen.
Do I need to register a boat with a sail in GIMS?
Under current regulations, small craft weighing up to 200 kg (including gear and motor) and engine power up to 8 kW (about 10 hp) are not subject to registration. The sail is not an engine in the context of power, so if the boat is light, registration is most often not required, but the rules may change, and it is worth clarifying the current information at the local GIMS office.
How to store sails in the off-season?
The sail must be thoroughly dried to avoid mold, stored in a rolled (not crumpled) form in a dry, dark place, and direct sunlight and moisture are the main enemies of sailing fabric.