Operating an inflatable boat without a reliable transport base turns the pleasure of fishing into a series of logistical problems. PVC boat trailer It's the link that connects the garage and the pond, allowing the vessel to be quickly transported to the descent site. Unlike metal models, inflatable models require careful transportation, eliminating friction against rough surfaces and punctures with sharp objects.
The modern market offers many options, from budget homemade designs to complex factory systems with hydraulic rollover. The right device not only protects the nerves of the owner, but also prolongs the life of the boat material. In this article, we will discuss all the nuances of choice, technical requirements and features of operation of such trailers.
Many water-engines are asking themselves whether to buy a finished product or assemble it DIY. The answer depends on your welding skills, availability of tools and free time. Factory models are certified and ready to register with the traffic police immediately after purchase, while homemade ones require documentary evidence of safety.
Construction and material requirements
The basis of any high-quality trailer is a frame that must withstand not only the weight of the boat, but also dynamic loads when moving on irregularities. Hot galvanizing It is considered the best coating for metal protection against corrosion, especially given the constant contact with water. Aluminum structures are lighter than steel, but significantly more expensive and difficult to repair when damaged.
A critical element is the pad or hull support system, and roller pads or combined systems that use soft inserts are ideal for PVC boats. Rubber mats Lodges prevent sliding and damage to the bottom during transport, and rigid metal arcs without protection are not suitable for inflatable vessels.
⚠️ Caution: Using a trailer without soft inserts or with damaged rollers can cause PVC fabric to be wiped in just one long-distance trip.
When choosing materials, you should also pay attention to the quality of welds, they must be continuous and cleaned to avoid corrosion in the future. load-bearing capacity The axles must exceed the total weight of the boat with the engine and equipment by at least 20-30%.
Calculation of load capacity and dimensions
Before buying or manufacturing, you need to know exactly the weight parameters of your kit. The total weight is composed of the weight of the boat itself, the outboard motor, fuel, anchor and other equipment. Total mass The trailer must not exceed the permissible load on the farcop by the manufacturer of the car.
The overall dimensions of the platform should correspond to the length and width of the vessel. Too long a trailer causes problems when parking, and too short does not provide adequate support for the bow. Optimally, if the keel of the boat lies on the supports along the entire length, or two points of support: in the area of the transom and in the bow third.
It is important to consider ground clearance. If you plan to move off steep concrete slabs, the trailer clearance should be sufficient to keep the bottom from squeezing on the surface when loading. Heavy boats longer than 4 meters in length often require two-axle models.
Below is a table of correspondence of the length of the boat and the recommended type of trailer:
| Boat length (m) | Type of trailer | Number of axes | Recommended load |
|---|---|---|---|
| Up to 3.5. | Single-axial, lightweight | 1 | 500 kg |
| 3.5 - 5.0 | Uniaxial, reinforced | 1 | 750 kg |
| 5.0 - 6.5 | Biaxial | 2 | up to 1,500 kg |
| More than 6.5 | Two-axle specialist. | 2 | over 1500 kg |
Loading systems: keel rollers vs beds
The choice of hull support system directly affects the ease of loading and safety of the vessel. Keel rollers allow you to roll the boat with a winch directly from the water, which is especially important for places with a sloping shore. NDMA.
The slurry system (platform with soft bars) distributes weight evenly across the bottom area, ideal for boats with hard floorboard or inflatable floor, as it eliminates the deformation of the hull during prolonged parking, and the disadvantage is the need for more accurate positioning during loading.
For inflatable floor boats (BBBBs), use wide lozenges with a minimum distance between the supporting beams to avoid sagging and straining seams.
Combined systems combine the advantages of both types: the bow rests on a keel roller for guidance, and the bulk is distributed along the side beds, which provides better stability on the track and protects the sides from hanging.
Chassis and wheel pairs
The wheels of the trailer are under enormous strain, especially when driving on unpaved roads to the reservoir. 175/70 R13 or 185/60 R14 It is important to pay attention to the load index, which should correspond to the total mass of the trailer.
The suspension can be made on springs or rubber harnesses (torsiones). The springs are more repairable and cheaper, but stiffer. Torsion suspension provides smooth running, which is critical for maintaining the integrity of inflatable tubes, but when broken, requires replacing the entire assembly.
Secrets of hub maintenance
Check the puffing of hub nuts and lubrication regularly. For trailers that are in frequent contact with water, use lithium-based water-resistant lubricants and install duplexes with double moisture protection.
Don't forget the spare wheel. Its absence on a long journey can make the trip a nightmare, especially if you are far from civilization. The spare tire mounting must be reliable and not interfere with access to the transom of the boat.
Homemade trailer or factory?
Decision to manufacture trailer himself It's often driven by a desire to save or to get unique features, but the cost of metal, wheels, lighting and winch can come close to the cost of a budget factory counterpart, and homemade products will take time and skill.
Factory trailers, such as MIZNA, squiff or vectorYou don't have to worry about getting checked in because the vehicle passport (VP) comes with the package, and the quality of welding and corrosion treatment from large manufacturers is usually higher than in garage conditions.
☑️ What to Consider When Choosing
If you still decide to make your own, remember to obtain approval of the type of vehicle (OTTS) or undergo certification in the laboratory. Without the appropriate documents, it will be impossible to register a trailer in the traffic police, and its use on public roads will become illegal.
Legal aspects and registration in the traffic police
Registration of the trailer is mandatory if its total weight exceeds 750 kg. For lighter models, license plates are not required, but the documents (contract of sale, check) must be with you. Since 2022, the rules have been simplified: for trailers weighing up to 3500 kg, category "E" is not required if the total mass of the trailer does not exceed the maximum permissible mass of the car.
When buying a factory product, you get a set of documents for registration. In the case of a homemade trailer, the procedure is more complicated: preliminary technical examination is required, the state fee is paid for issuing a certificate of safety of the structure and inspection by the traffic police.
⚠️ Note: Operation of an unregistered trailer (if it is subject to registration) entails the imposition of a fine and the vehicle being placed in a parking lot.
It's also important to keep your lights on, and the absence of a stop light or a turn signal is a common cause of fines and risky situations on the road, and use LED optics, which consume less energy and are less sensitive to vibrations.
Care and preparation for the season
After each trip, especially on salt water or dirty soil, the trailer must be washed. Salt and reagents quickly destroy even galvanized surfaces. Pay special attention to the hidden cavities of the frame and the places where the wheels are attached.
Before long storage, it is recommended to lubricate all rubbing parts, check the tire pressure and remove the battery (if there is an electromechanical winch).
Regular washing and lubrication of trailer components after each season of operation increase its service life by 2-3 times.
Compliance with simple rules of operation will allow your trailer to serve faithfully for many years, delivering the boat to the water safely and without problems.
Frequently Asked Questions (FAQ)
Do I need category E to carry a boat on a trailer?
Category "E" is not required if the total mass of the trailer does not exceed 750 kg, or if it is more than 750 kg, but the total mass of the car and trailer does not exceed 3500 kg, and the mass of the trailer does not exceed the curb weight of the car.
How often should I change my sleeves?
Bearings depend on the operating conditions and are recommended to be prevented (lubricated) once a year or every 10,000 km of run when in regular contact with water, bearings change as backlash or noise occurs.
Can I carry a metal boat on a PVC trailer?
Theoretically, it is possible if the weight of the metal boat does not exceed the load capacity of the trailer, but the sharp corners of the metal hull can damage the pads designed for soft PVC, so additional protective gaskets are required.
What is the maximum weight of the motor can be carried on a trailer?
The limitation is not only the load capacity of the trailer, but also the maximum load on the car's farcrow. Usually, the trailer's breath accounts for 5-10% of the total mass. Heavy motors should be placed closer to the trailer axis for proper weighting.
What to do if the trailer starts to wag at speed?
Reduce the speed, do not make sudden movements with the steering wheel. Check the correct loading: the center of gravity should be shifted slightly forward of the wheel axle (about 60% of the load in the front), also check the pressure in the tires and the presence of backlashes in the coupling device.