For boat owners, the issue of transportation to the descent is always acute. Often you can find cars on the roads with a boat on the roof that resembles a classic canoe or kayak. In common use, this design is often referred to simply as a “boat trunk” or “roof box for a boat”, but technically it is a boat. specialtyadapted to the dimensions of the body.
The correct name depends on the type of boat and how it is fastened. If you're talking about a rigid structure that replicates the contours of a boat, it's a very simple design. keel-car or quillblockIn the case of PVC inflatable models, the term “soft trunk” or “baggage case” is used. Understanding the differences is critical to the safe transportation and preservation of the geometry of your boat’s hull.
In this article, we will discuss how to correctly name various types of fasteners, what are the restrictions on the load on the roof and how to avoid fines from traffic police. certified They will ensure the safety of your property at high speeds.
Terminology: How to properly name a structure
In the professional environment and among boaters, it is not customary to use blurry language. fairing-box However, if the structure is an open frame that repeats the bottom, the term "keelblock mounting system" is more appropriate. It is important to distinguish between these concepts, since they imply different methods of fixation.
There is also a concept soft rack It's a tight, strap-on case that's worn right on the side of a boat, and it's a solution that's popular for lightweight inflatable models, but it's not suitable for rigid housings. It's a system that's used for hard cases, like plastic canoes or kayaks. kielson - longitudinal beams that distribute weight.
Not to be confused with the usual crossbars on which the boat is simply placed on top, the “boat-shaped” trunk often involves sideboards or fairings to protect the vessel from oncoming air and dirt, especially when driving long distances along the highway, where aerodynamics play a crucial role in fuel consumption.
Types of luggage for transportation of boats on the roof
The automotive accessories market offers several types of solutions, each with its own specifications, depending on how much your boat weighs and how often you plan to transport it, with three main categories, but many modifications.
- 🚙 Rigid fairings: Made of durable plastic ABS, completely cover the boat, protecting from stones and insects.
- 🛶 Kilson frames: Metal or aluminum structures that repeat the shape of the bottom provide rigid fixation.
- 🎒 Soft Rack (Soft Rack): Tissue cases with reinforced bottom, suitable for light inflatable models without a hard bottom.
Rigid fairings are considered the safest because they do not allow moisture and dirt to enter, but they are much more expensive, and the dimensions assembled can be inconvenient to store in the garage. keelskin frames They are more versatile and allow to transport boats of different lengths, adjusting the position of the supports.
⚠️ Warning: When choosing a soft cofre, make sure that the bottom material is reinforced. Conventional fabric will quickly wipe through the roughness of the roof or crossbars, which will damage the cylinders.
Separately, the combined systems, where the boat lies on the crossbars, but the top is closed with an awning, are a compromise option, but it requires careful checking of the leakage before each trip, water caught under the awning can create a sailing effect or freeze in winter, damaging the coating.
Use special protective linings on the crossbars of the trunk to avoid scratches on the sides of the boat during loading.
Design features and materials
The durability of the trunk depends on the materials it is made of. For use in Russian winter and in contact with water (after launching the boat is often loaded wet), corrosion resistance is critical. Aluminum alloys with anode coating are the gold standard in this industry.
Plastic elements such as fairings or keelblocks must be made of frost-resistant plastic. Cheap polyethylene in the cold becomes brittle and can crack from a branch impact or when inactive loading. Fiberglass It is also used, but it is heavier and requires careful handling.
Fixing elements (bolts, nuts, brackets) must be made of stainless steel brand A2 or A4The usual galvanized fastener rusts after the first season of active use by the water, and rust not only spoils the appearance, but also weakens the connection, which can lead to an emergency on the track.
Why is aluminum better than steel?
Aluminum does not rust in the usual sense, but oxidizes, forming a protective film, and steel is subject to deep corrosion, especially in salt water, which is critical for sea kayaks.
Rules for safe installation and fixation
Putting a boat on the roof requires a strict algorithm of actions. Simply putting and tethering it is not enough, because at 90 km / h, the structure is subject to huge aerodynamic forces. The first step should always be to check the load capacity of the roof of your car, specified in the instructions.
The straps are designed to hold onto the snares or tensioners, and the normal knots can be weakened by vibration, the belts must pass through the eyelets or cover the cross-sections without touching the sharp edges, and the tension must be uniform on all sides to prevent the load from shifting.
☑️ Checklist before leaving for the track
If the boat protrudes beyond the dimensions of the car more than 1 meter behind, the rules must mark the cargo with a red rag or flag, and in the dark - with a reflector. When overhangs of more than 2 meters, special permission and a sign "large-sized cargo" are required.
Comparison of anchorage types: specifications table
To make your choice easier, we have prepared a basic parameters comparison table that will help you weigh the pros and cons before buying a specific solution for your car.
| Type of attachment | Structure weight | Weather protection | Difficulty of installation |
|---|---|---|---|
| Rigid fairing | Tall (15-25 kg) | Maximum | Medium |
| quilt frame | Medium (8-12 kg) | Missing. | High. |
| Soft kofr | Low (2-4 kg) | Partial | Low. |
| Crossbars + slings | Minimum | Missing. | High. |
As you can see from the table, fairing They provide better protection, but they are heavier and more expensive. Soft kaffres Ideal for rare trips and light boats, but not for long journeys on bad roads, the choice is always up to the owner, based on his budget and frequency of use.
Remember, putting a heavy structure on the roof shifts the center of gravity of the car upwards, which affects the car's behavior in cornering and braking, and be prepared for acceleration to deteriorate and fuel consumption to rise by 10 to 15 percent due to increased air resistance.
Safety of the mount is more important than speed of installation, spend an extra 5 minutes checking the belts, so as not to lose the boat on the highway.
Legal aspects and requirements of the traffic police
Transportation of the boat on the roof is regulated by paragraph 23 of the traffic regulations of the Russian Federation. According to the rules, the cargo should not restrict the driver's view, close lights and license plates. If the boat covers the headlights or "turnpieces", the use of the car is prohibited without installing additional lighting equipment on the cargo itself.
Penalties for improper transportation can be significant. Violation of fastening rules threatens with a fine of 500 rubles (part 1 of article 12.36.1 of the administrative code), and if the cargo poses a threat to movement - a warning or a fine of up to 2500 rubles. Moreover, if due to poor mounting, the boat falls and damages other cars, the owner will bear full financial responsibility.
⚠️ Attention: Traffic police officer has every right to prohibit further movement if he sees that the boat is securely secured (for example, only on tape or one rope).
In Russia, the maximum height of a vehicle with a load should not exceed 4 meters from the road surface. For cars with a boat on the roof, this is rarely a problem, but when installing high keels or transporting large catamarans, it is worthwhile to be vigilant.
Carrying the luggage in the winter
Trunk operation in winter has its own peculiarities: the reagents on the roads are aggressive to metal, and temperature changes destroy plastic. After each trip in the winter season, it is recommended to wash the fasteners with warm water to wash off the salt, which will prolong the life of the metal elements.
If you use soft elements or belts, make sure they do not freeze to the body of the car. Before removing the load, make sure that the fabric does not freeze to the metal, otherwise, during a jerk, you can damage both the belt and the paint coating of the roof. Silicone lubricant This will help prevent the stainless stains from breaking.
It is better to store the dismantled trunk in a warm room, plastic in the cold becomes brittle, and sloppy assembly in the spring can lead to cracks. Metal parts should be greased with conservation grease before storage.
Can I wash my car with a trunk on the roof?
In automatic brush washers, it is better to remove the trunk, brushes can damage the mounts or the boat itself, and a high-pressure washer is safe if you do not direct the jet at high pressure directly into the locks and joints of parts.
Can I transport a motorized boat on the roof?
It's not recommended. The hinged-motor trunk creates a huge sailing and load on the stern, and the vibration can damage the engine's lower unit, and it's better to carry it in the cabin or in the back if it's a pickup truck.
What is the maximum speed allowed with a boat on the roof?
Traffic rules do not set a separate speed limit for cars with a load on the roof, but recommend reducing speed. Safe is considered to be 90 km / h. Exceeding this speed dramatically increases the risk of displacement of the load due to aerodynamic forces.
Do I need to register the trunk at the traffic police?
The trunk itself does not require registration as an accessory, but if the design significantly changes the appearance of the car or exceeds the dimensions, theoretically, questions may arise. In practice, standard solutions from well-known brands do not raise questions for inspectors.
Will the trunk damage the roof of the car?
If installed properly and there are rubber pads, no, the only danger is dirt and sand trapped between the mounts and the roof, which act as an abrasive. Always wipe the roof and soles of the mounts before installation.