Transporting an inflatable boat 320 centimeters long is a task that sooner or later confronts every water motor. PVC boats They are considered relatively easy, their constant loading and unloading in the trunk of a passenger car quickly wears out the cabin and requires considerable physical effort. That is why a specialized trailer becomes not just an accessory, but a necessity for comfortable operation.
The market offers a lot of ready-made solutions, but often they are excessively heavy or, conversely, do not fit into the specific dimensions of your business. 3.2-meterUnderstanding the design and specifications of the trailer avoids problems on the road and when launching, and a competent approach to choosing will save you nerves and money in the long run.
In this article, we will analyze in detail what kind of trailer is needed for a boat with a length of 320 cm, whether to buy a ready-made version or make it yourself, and also consider the key components that require special attention during operation.
Criteria for the choice of trailer for a boat 3.2 meters
The first thing to pay attention to is loading capacityPVC boat 320 cm assembled with a motor, battery and anchor can weigh from 150 to 250 kg The optimal safety margin is considered to be 30-40% of the planned cargo.
The second critical parameter is the type of lodging, and for inflatable sides and cylinders, the absence of sharp edges and the correct distribution of pressure are critical. Roller beds (rollers) are convenient for descent, but can damage the fabric during prolonged parking, whereas keel sleds provide better fixation of the body during transportation.
The platform's dimensions should not be ignored, too long a breather can interfere with parking maneuvers, and narrow tracks can make the trailer unstable on the track in side winds, and the ideal gauge width should be comparable to the width of the tractor car or be a little narrower.
When choosing a trailer for PVC 320, pay attention to the presence of a winch with a stainless steel cable or Kevlar cable - a conventional steel cable can rust and stain the sides of the boat.
Comparison of factory models and homemade structures
Factory trailers, such as MZSA, Vector or SKIF, offer certified design and availability immediately after purchase, their main advantage is compliance with GOSTs and the availability of documents for registration with the traffic police. However, the price of such products is often high, and the design can be excessively heavy for lightweight vehicles. flyboat.
Homemade options allow you to create a design that is perfectly tailored to your needs. You can use lighter materials, such as a smaller-section profile pipe, and save on weight, especially in low-power cars, where every extra kilogram of trailer reduces the payload.
However, self-manufacturing requires welding skills and an understanding of the basics. constructionMiscalculations can cause the frame to break or collapse at speed, and legitimizing a homemade trailer is a separate bureaucratic process that can take a long time.
Hidden costs of homemade trailer
When calculating the cost of a homemade trailer, it is often forgotten about the cost of painting, electrics, stop lights and documents, which can result in savings of only 10-15% compared to a budget factory counterpart, but will be spent three times more time.
The table below compares the main specifications of factory and homemade solutions for class 320 boats:
| Parameter | Factory trailer | Homemade trailer |
|---|---|---|
| Weight (unladen) | 180-250 kg | 80-120 kg |
| Load capacity | 750 kg | 400 kg |
| Cost | High. | Medium/Low |
| Time of manufacture | 1 day (buying) | 3-7 days (work) |
Design features of frame and materials
The basis of any trailer is a frame. For a boat 320 cm most often use a profile pipe with a cross section of 40x20 mm or 50x25 mm. St3 It provides the necessary strength, but is subject to corrosion, and the alternative is aluminum, which does not rust and is lighter, but costs much more and is more difficult to weld.
The important element is the breather. Light boats are optimal for the A-shaped, which provides better stability on the road and less "sniffle" when driving. Direct breathers are easier to manufacture, but require more accurate alignment of the cargo.
Pay special attention to corrosion protection, even if you use it. galvanizedWelded seams remain a vulnerable spot. High-quality primer and painting in several layers is a prerequisite for the long service of the trailer, especially given the constant contact with water during descent.
The use of a profile pipe with a wall thickness of less than 2 mm for the frame of the trailer for the boat 320 is unacceptable - this critically reduces the safety margin of the structure.
Chassis: wheels and suspension
For dimensions of 320 cm and weights up to 400 kg, there is no need for a biaxial system. A monoaxial scheme with spring or torsion suspension is completely fine. Resins are easier and cheaper to maintain, and they are easy to replace in case of failure in the field.
The wheel size is usually R13, which is the standard for light trailers, providing good ground clearance and stability, and using wheels from passenger cars (such as VAZ) makes it easier to find spare parts and disks.
- 🚗 Discs: Preferably stamped steel discs, they are cheaper and easier to correct when hit.
- 🔩 Hubs: Choose models with rolling bearings, they are longer than the sleeve of the slide.
- 💨 Pressure: Always check the tire pressure before a long trip, under-performed wheels quickly fail.
Keep in mind that the chassis is under maximum load when driving on dirt roads to the reservoir. Regular lubrication of bearings and checking the nut tightening is a mandatory procedure before each season.
☑️ Checking the chassis before the season
Winch mechanism and anchorage system
For a 320 cm PVC boat, the manual winch drive is the most reliable and simple solution. Electric winches require connection to the vehicle's battery and more complex maintenance, which is often excessive for such a weight.
The boat's trailer attachment system should prevent the hull from moving when braking sharply, and in addition to the main cable, it is recommended to use additional belts that lock the transom part, which will eliminate the impact of the motor against the transom when driving on irregularities.
It is important to adjust the angle of the winch correctly. The cable must run parallel to the bottom of the boat so that when tightening, there is no bullying of the nose upwards, which can lead to deformation. balloon.
⚠️ Attention: Never leave the boat on a trailer only under the strain of the winch cable during long periods of parking. The cable may stretch or burst. Use additional safety slings.
Electricity and lighting
Safety on the road depends on the serviceability of lighting devices. For a trailer under a boat 320 cm is enough standard set: dimensions, turn signals, stop lights and reflectors. All wires must be protected by corrugated and have a margin of length for reclining breathed (if the design is collapsible).
Use only waterproof lights with rubber seals. Constant contact with water when launching the boat will quickly disable conventional car optics. The connection connector to the car should be sealed and securely fixed.
The connection scheme is usually standard for a 7-pin outlet, however, if your car has a complex electrical control system (CAN bus), you may need to install an additional Smart Connect to avoid errors in the onboard computer.
The problem of contact oxidation
The most common cause of failure of the trailer electrician is the oxidation of the contacts in the headlights. Once a season, disassemble the lights, clean the contacts and lubricate them with special lubrication for electrical contacts.
FAQ: Frequently asked questions
Do I need to register a trailer for a boat 320 cm in traffic police?
Registration is mandatory if the total weight of the trailer (own weight + cargo) exceeds 750 kg. For light boats 320 cm often manages to meet this limit if the trailer weighs less than 400-500 kg. In this case, registration is not required, but the documents for the trailer (PTS or contract of sale with the indication of mass) must be with you.
What motor can be carried on a trailer with a boat?
On a boat trailer 320 cm can carry a motor with a capacity of up to 10-15 hp in a vertical position, if the design of the lodging allows it. More powerful and heavy motors are better transported separately or in a horizontal position on a special stand, so as not to overload the transom of the boat.
Can a boat trailer be used as a platform for other cargo?
Yes, boat trailers are often versatile, but lodgings can interfere with flat cargo transportation, and some owners make removable lodgings or use additional wooden shields to level the area for other needs.
How to prepare a trailer for winter storage?
The frame must be thoroughly washed of salt and dirt, all rubbing knots lubricated, the springs relaxed (if possible) and stored in a dry room. Wheels should be raised on stands to unload the tires.