Transporting a boat on the roof of a car is not only a risk of damage to the body, but also a serious threat to safety on the road. boat-carrier It becomes a mandatory element of equipment for any owner of a boat or PVC-motorized boat. A properly selected cart ensures the stability of the cargo, protects the transom from vibrations and allows you to quickly launch the boat without unnecessary physical effort.
Many beginners make the mistake of buying the first option, without thinking about compatibility with their tractor or body features. Spring suspension It may be a lightweight boat, and roller-system This is not suitable for heavy fiberglass with a complex keel. In this article, we will discuss all the nuances so that you can make an informed choice.
It's worth noting that the market offers solutions ranging from simple frame designs to complex engineering systems with hydraulic brakes. Understanding the difference between the two will help you save significant money and avoid problems with GIMS inspectors. Let's dive into the technical details.
Types of lounge and roller trailers
The main separation is by the type of support on which the hull of the vessel rests. Logment models are a long frame with soft rollers (plateboards) mounted on it, repeating the contours of the bottom. This is a classic solution that provides excellent fixation and load distribution along the entire length of the hull. bottomless and heavy equipment on board.
In contrast, roller-based structures are equipped with many small rubber or polyurethane wheels, and their main advantage is that they can manually roll the boat directly to the water, which is true on gently sloping banks without concrete slips, but rollers have a nuance: they create load concentration points, which requires more frequent checks of the bottom.
⚠️ Warning: When choosing a roller trailer, make sure that the roller material does not leave black marks on the sides of the boat and is resistant to salt water if you plan to go out to sea.
There are also combinations where the bow has pawns to hold and the stern is roller-based, a compromise solution that combines the reliability of the lock and ease of descent, and the type of boat you choose depends on where you operate the vessel most often and the weight of your boat with the engine.
Load capacity and overall specifications
The key parameter that cannot be ignored is full-body The weight of the carriage itself, the weight of the boat, the engine, the fuel and the extra equipment, which exceeds the permissible load, leads to the destruction of the frame, rapid wear of the tires and, most dangerously, loss of control of the car on the road.
Dimensions also matter. Standard gauges typically range from 1,300 to 1,600 mm, but there are narrow-road models, or broad-based models for large boats, that should provide a safe distance to the car, especially when braking, so that the inertia of the load doesn't push the tractor.
When calculating weight, remember to consider the "vegetable weight" of the boat. If the documents indicate 300 kg, this does not mean that with the engine, anchor, battery and gasoline, the weight will not grow to 450 kg. Always take a margin on the carrying capacity of about 15-20%.
Weigh your boat assembled with an engine and a full tank on a car scale before buying a trailer - this is the only way to know the real weight, not the theoretical one.
The following is a table of correspondence between trailer classes and rapid orientation boat types:
| Trailer class | Max. load (kg) | Type of boat | Features |
|---|---|---|---|
| Light (up to 750 kg) | 500 | PVC, small aluminium | Does not require category "E" in the rights |
| Medium (up to 1500 kg) | 1200 | Aluminum, fiberglass | Braking system is often required |
| Heavy (up to 3000 kg) | up to 2,500 | Boats, yachts | Category E only and brakes |
| Specialized | Individually | Hydrobikes, sailboats | Specific anchorages |
Suspension, wheels and braking systems
The quality of the suspension directly affects the safety of the boat when transported on our roads. torsion-axis Torsion is good because it doesn't require maintenance, doesn't rust from the inside and it keeps things running smoothly, but it's afraid of hitting curbs.
Spring suspension is more traditional and maintainable, and can be replaced in any garage if it breaks, but it requires regular lubrication and inspection of the ladders. For heavy boats, springs are almost an option because of their reliability and ability to withstand jerk loads.
Special attention deserves brakeUnder traffic regulations, trailers with a gross mass of more than 750 kg must be fitted with brakes, often inertia such as the coast down that are triggered when the vehicle is braking, and ignoring this requirement can result in fines and, worse, a downhill crash.
☑️ Checking the chassis before the season
Boat trailer wheels must be resistant to corrosion. Steel wheels rust quickly from contact with water, so the best choice is light alloy wheels or quality powder paint. Tire size should be consistent with ground clearance: small wheels (13 inches) can get stuck in dirt at the entrance to the water, and large (15-16 inches) will increase overall height.
Manufacture materials and corrosion protection
Because the boat trailer is in constant contact with water, often salty, the issue of corrosion protection is the edge, the main options are two: hot galvanizing and polymer painting. Hot galvanizing When you immerse yourself in a melt, zinc creates a layer on the surface of the metal that acts as an active tread, and even when you scratch, zinc continues to protect the steel.
Painted frames are cheaper but require constant maintenance. Paint chips on welds will turn into a rust vent in one season, which can weaken the structure. If you choose a painted trailer, be prepared for regular paint and storage in a dry garage.
⚠️ Warning: Never leave a galvanized trailer in water for a long time (more than 2-3 hours) Zinc reacts with copper alloys (screws, lower units), causing electrochemical corrosion that will destroy your expensive knots.
Furniture such as winches, ducks and fasteners must also be made of stainless steel grade AISI 304 or AISI 316. Conventional fasteners will rust after the first trips, which will lead to acidification of the joints and the inability to adjust the position of the boat.
Secrets of long service galvanizing
If you notice a white coating on zinc, it's normal, it's oxidizing the protective layer. Don't clean it aggressively. You can once a year, you can cover the frame with special wax compounds for zinc that fill the micropores.
Package: winches, ducks and lights
Basic equipment is often minimal, so you should pay attention to additional options. The bow winch is the heart of the loading system. For light boats, a manual winch with a cable is enough, but for heavy models, it is better to choose a mechanism with a single loading system. brake-drive And a belt instead of a cable that doesn't rust or get confused.
Lighting devices must be sealed. Standard car lights fail quickly due to condensation. Look for IP67 or IP68 labels. Wiring must be laid inside pipes or protected channels to avoid contact with water and mechanical damage when manoeuvring ashore.
Additional pole-roller (kilblocks) help to position the boat correctly when winding on the winch, preventing distortions, and a spare wheel will also be a useful addition, since it can be difficult to find the right "roll" for specific trailer wheels in the field.
A high-quality winch with a belt and a sealed LED optics are two options that you should not save on, as they ensure safety and ease of operation.
Maintenance and preparation for winter storage
The life of the trailer depends on how you care for it, and after every trip to the salt water or just after a dirty road, you need a wash, especially carefully wash the hubs of the wheels and the space under the springs where salt and dirt accumulate.
Hub bearings require regular lubrication, depending on the design, this is done either through a syringe press (if there are oils), or by completely disassembling and replacing the lubrication once a season or every 10,000 to 15,000 km. The hum of the wheels is the first sign that the bearing needs attention.
For winter storage, it is better to put the trailer on the stands, removing the load from the tires, or periodically roll it over to avoid flat spots on the rubber. Metal parts are recommended to be treated with preservative lubrication, and the trailer itself is stored under a canopy.
Do I need to register a trailer in GIMS?
Under current Russian law, trailers for passenger cars with a maximum permissible weight of up to 3,500 kg do not require registration with the GIMS and obtaining numbers if they are intended for the carriage of small craft.
What category of rights are needed for towing?
If the total mass of the trailer does not exceed 750 kg, the usual category "B" suffices. If the mass of the trailer is greater than 750 kg, but the combined mass of the vehicle and the trailer does not exceed 3500 kg, category "B" is also suitable. Category "BE" is required if the trailer is heavier than 750 kg and the sum of the masses exceeds 3500 kg.
Can I carry other cargoes on the boat trailer?
Technically, if the dimensions and weight allow, but the lozenges can stain the cargo, and the lack of sides makes it impossible to transport bulk materials, and the boat's specific mounting is not suitable for other items, which may not be safe.
How often should I change my sleeves?
With proper operation and regular lubrication, quality bearings run for 2-3 seasons. However, if you often immerse your hubs in water (especially hot ones, right after the track), the resource can be reduced to one season.