Transportation of small boats requires special attention to detail, because at stake is not only the integrity of expensive equipment, but also the safety of other road users. Boat straps They are critical equipment, often underestimated until an emergency occurs, and properly fitted screeds prevent the hull, sidewalks and additional equipment from being displaced by vibration and wind gusts.
Unlike simple ropes, modern belts are equipped with reliable snoring mechanisms that allow you to create and hold high tension. Driver or owner of the boat You should clearly understand the difference between static and dynamic loads to avoid rupture of PVC fabric or deformation of the aluminum body. In this article, we will discuss in detail all the nuances of choosing, installing and operating a rigging rigging.
Design features and types of tie belts
The basis of any high-quality belt is a fabric tape woven from polyester threads, and this material was chosen not by chance: it has a minimum tensile coefficient, is resistant to ultraviolet, fuel and temperature changes. Polyester tape It can withstand enormous tear loads while remaining flexible and easy to handle even in freezing weather, and it's important to distinguish it from nylon counterparts, which have the ability to stretch under load, which is unacceptable when fixing a boat.
The key piece of the structure is the ratchet, or rattle, and it's this element that allows you to create a tension force that is many times greater than the physical force of a person, and the mechanisms are made of zinc alloys or steel with anti-corrosion coating. For sea and river boats, it is critical to choose electroplating mechanisms, as ordinary paint will quickly fly over from contact with salt water. The quality of the rattle assembly directly affects the reliability of the fixation: cheap models can slip or jam at the most inopportune moment.
And then there's the finite element type division, and belts can be hooked, they can be ringed, they can have a loop on one side. Hooks-locks They are convenient for fast attachment to the rings on the trailer, but can jump off when shaking strongly, if not fixed additionally. Loop options are considered safer, since they eliminate the risk of spontaneous uncoupling, but require special eyelets or studs for wiping.
The choice of bandwidth also plays a role. For lightweight inflatable boats up to 3.5 meters long, a 25 mm wide belt is usually sufficient. For heavier structures, including hard bottom boats (HBB) or metal boats, it is recommended to use reinforced versions with a width of 35 mm or more. Load capacity The belt should be selected with a margin of at least 30-50% of the weight of the fixed object.
Choice criteria: what to look for when buying
The rigging market is full of offers, and it's hard to choose a really reliable product, and you have to look at the labels on the tape or the tags. workload (Working Load Limit — WLL) and burst load. Many manufacturers only specify a burst load that is 2-2.5 times higher than the working load, and you can't rely on these numbers, because the belt can deform long before the break.
The length of the belt is the second important parameter: too long a belt will have to be wound on a coil or tied, which reduces its efficiency and creates unnecessary knots. Too short will not allow it to pass through the mounts or to cover the body. Optimally, if after tightening and fixing in the ratchet there is a small supply of free tape, but not more than 10-15 cm. Standard dimensions The range ranges from 2 to 6 meters, which covers most of the needs of small boat owners.
The quality of the fittings also requires visual evaluation: hooks should not have sharp edges, burrs or rust marks. The rattle mechanism should run smoothly, without jamming, and the unlock lock should clearly return to its original position. Cheap Chinese counterparts often sin with thin metal hook legs that can straighten under tension. Solid elements It is always preferable to stamped from a thin sheet.
You should also consider the seasonality of use. If you plan to leave the boat attached to the trailer outdoors all year round, conventional belts can lose their properties after one or two seasons. UV stability They cost more, but replacing them in a year will cost much more than the original purchase.
When buying a set of belts immediately purchase covers or holsters for ratchets - this will protect the mechanism from dirt and prolong the service life at times.
Rules for safe installation and fixation of the boat
The process of attaching a boat to a trailer or roof requires a certain sequence of actions. A violation of technology can cause the hull to skew or damage to the sides. First, the boat is mounted on the supports (kilblocks) and fixed with a nose stop, only then they start working with the rod belts. Nose traction or winch must be securely fastened so that the boat does not move back and forth during tightening of the side mounts.
Belts should be passed through special rings on the sides of the boat or cover the hull in reinforcement areas (under banks or a hut); it is strictly forbidden to strap inflatable tubes in one place for a long time without protection, as this can damage the fabric. If the design of the boat does not provide for the atrium of the rings, use soft slings or put a piece of dense rubber or felt under the belt. Point pressure The sharp edges of the hook or the most strained tape can damage PVC.
The tension should be uniform. All the belts are slightly tightened to pick up the slack, and only then they are tightened to the point. Excessive force can deform the sides or cause the boat to shift on the keelblocks. The forklift should be locked in the closed position, and the free end of the tape should be tucked in or fixed so as not to dangle in the wind. Vibration. At high speeds, it is able to unwind even a well-tightened mechanism if the free end will beat against the body.
☑️ Pre-departure checks
Special attention should be paid to the symmetry of the mounting: the left and starboard sides should be tightened with the same force; skewing to one side will create an uneven distribution of weight, which is dangerous when cornering. If you use additional loads inside the boat (anchor, tanks, motor), they should also be separately secured so as not to shift the center of gravity of the vessel while driving.
Specifics of fastening for PVC boats and metal housings
The hull material dictates its rigging conditions, PVC boats are more sensitive to temperature and mechanical stress, and in hot weather, the pressure inside the cylinders increases, and the fabric becomes more susceptible to pressing. Flying belts PVC boats should not be able to pull cylinders "before the bell"; it is enough to secure a fixation, which excludes backlash; in winter, PVC becomes rigid, and a sharp tension can lead to microcracks in the places where the cloth under the belt folds.
Metal boats, by contrast, require more rigid fixation because of their weight and the hardness of the hull. Here, the main risk is metal friction against metal. Belt hooks can scratch the sides or elements of the trailer. It is recommended to use belts with plastic hooks or use special tread belts. Aluminum alloysThe boats are soft enough, and the sharp edges of a poor-quality hook will easily leave deep furrows on them.
Metal boats often use cross-cross mounting schemes through the transom and bow to eliminate diagonal displacement, and in the case of PVC, this is only applicable if there is a rigid transom and special mounts, otherwise the geometry of the bottom can be deformed. transom wheelsIf installed, they often serve as a convenient support point for the lower hook of the belt, but you need to make sure that the wheel does not turn under load.
Why can't you use chains instead of PVC belts?
The chains do not have shock absorbing properties and, when vibrating, they work like a saw, cutting through the fabric of cylinders, and the chains cannot be pulled with the necessary force without a special tool, and their weight puts additional stress on the trailer.
An important aspect for both types of boats is protection against abrasion. In places where the belt contacts sharp corners of the transom or elements of the trailer (for example, wings), it is recommended to install protective corners or use belts with a reinforced edge. Constant friction at a speed of 80-90 km / h can wipe even the strongest polyester thread in one long season.
Table of conformity of loads and specifications of belts
To get the right gear, you need to be specific, and here's a table that helps you match the weight of the boat and the belt you want. burst-load This is the limit value at which the material is destroyed, and the workload is only a part of it.
| Type of boat / Weight | Recommended bandwidth | Workload (WLL) | Breaking load (Min) |
|---|---|---|---|
| Inflatable (up to 200 kg) | 25 mm | 400 kg | 1,000 kg |
| PVC with NDND (up to 400 kg) | 35 mm | 600 kg | 1500 kg |
| Aluminum (up to 600 kg) | 50 mm | 1,000 kg | 2,500 kg |
| Boat / Heavy Boat | 75 mm | 2000 kg | 5000 kg |
When choosing a belt, always round the requirements up. If your boat weighs 380 kg, a belt with a workload of 400 kg will work at its limit, which will reduce its life. Safety factor In rigging work - it is not just a formality, but a guarantee that a dynamic jerk during braking will not lead to an accident.
Also, consider the number of belts. For a light boat, two transom screeds are often enough. For a heavy boat, at least three or four are distributed along the length of the hull. Load distribution It allows to avoid local overloads of individual mounting points on the boat and trailer.
Never use belts with visible ribbon damage (rags, cuts) or deformed hooks, even if the load seems small.
Care, storage and diagnosis of wear
Like any equipment, screed belts require regular maintenance. After every trip, especially in salt water or in the rain, the belts must be dried. Wet polyester tape in the rolled-up state is the perfect medium for mold development, which destroys the structure of the thread from the inside. Mud and sand, stuffed into the mechanism of the rattle, act as an abrasive, quickly disabling an expensive node.
Periodically do a visual inspection of the tape, look for the following signs of wear and tear:
- 🧵 The appearance of individual broken threads or "rags" on the surface of the tape.
- 🎨 The fading of the paint on the tape (indicates the destruction of UV protection).
- 🔩 Corrosion or jamming of the moving parts of the snoring mechanism.
- 🔗 Deformation or cracks in the welded seams of hooks and rings.
Keep belts in straightened or neatly rolled up, in a dry room. It is not recommended to leave them in direct sunlight unstuck all year round. Ultraviolet If you leave the boat on a trailer for the winter, either remove the belts, cover them with protective covers, or cover the entire structure with an awning.
⚠️ Warning: If a through-cut is found on the tape or more than 10% of the threads in any section are damaged, the belt should be immediately disposed of, repair by stitching or bonding is prohibited, as it does not restore the original strength.
Lubrication of the rattle mechanism is also necessary, but it must be done correctly. Use silicone lubricants or special sprays for rigging. Lithium lubricants Or solidol can pick up dust and sand, turning into abrasive gruel, which will only harm the mechanism.
Frequently Asked Questions (FAQ)
Can you use conventional cargo belts instead of specialized marine ones?
Technically, they can be as long as they meet the load and width requirements, but cargo belts often lack the necessary protection against UV radiation and salt water, they will lose strength more quickly when operated in aggressive marine environments, and the hooks on cargo belts may not be adapted for rings on boat trailers.
How often should I change my belts?
Life depends on the operating conditions. When used actively (every weekend) and stored outside, belts last 2-3 seasons. If you take care of your equipment, remove and dry your belts after each trip, they can last 5 years or more. The main criterion is regular visual inspection.
What to do if the belt is stuck in a strained state?
Don't use force, don't try to disassemble the machine under load, it's dangerous. Try to slightly relax the tension by pressing the unlock lever, and at the same time pull the tape. If the mechanism is rusted, treat it with penetrating lubricant (WD-40) and wait 10-15 minutes. If that doesn't work, you'll have to cut the belt to remove the load and replace the mechanism.
Is it safe to leave the boat strapped on the highway?
Yes, it is standard practice, but with reservations: belts must be properly stretched (without sagging), and free ends must be securely fixed. At speeds above 90-100 km / h, sailing and vibration increase, so it is recommended that every 100-150 km of the way stop and check the tension. Vibration. It has the property of gradually weakening even well-tightened knots and ratchets.
⚠️ Warning: Never use a timber strap to lift a boat with a crane or a telfer! These are only designed for horizontal fixation during transportation. There are load slings with different safety margins and constructions for lifting.