Choosing a swimming aid for fishing or recreation is always a compromise between lifting capacity, comfort and mobility. PVC 350 hard-bottomed boat It's a middle ground for thousands of boaters across the country, and it's already big enough to hold the wave and hold the trophies, but it's still compact enough to be transported in the trunk of a car.
Unlike more modest models with a length of 320 cm, there is a full space for accommodating two passengers and a hinged seat. cross-engine Hard bottom, whether plywood floorboard or inflatable keelson, radically changes the driving qualities of the vessel, allowing you to develop a planing course and confidently cross the water.
Let’s consider in detail what is hidden under the label “350”, what types of bottoms exist and what nuances should be paid attention to when buying, so as not to be disappointed in the first trip to the water.
Design features of the model 350
The 350 in the model name represents the total length of the product in centimeters. However, the internal dimensions of the cockpit are more important for the user. In models of this class, the internal length is usually about 260-270 cm, which allows you to comfortably accommodate two full seats. The width of the cylinders varies from 42 to 48 cm, and this parameter depends on the stability of the vessel on the water.
The key element of the design is hard-bottomUnlike inflatables, it doesn't buckle under the weight of rowers and cargo, providing stability. Paiola is most often made from 9 to 12 mm thick, waterproof plywood, or aluminum. Aluminum sheets are lighter and lighter, but plywood is warmer and cheaper.
The system of connecting the pile sheets also plays an important role. Slidex Or "in the groove," which is a monolithic design, so if the sheets are just lying on the floor, as you go, you'll feel every wave hitting the bottom, and over time, you'll have backlashes.
- 🛶 Dimensions: Length 350 cm, width 145-155 cm, load capacity up to 500 kg.
- ⚓ Cylinders: The three-chamber system ensures unsinkability even if one compartment is damaged.
- 🔩 Tranza: Built-in or hinged, it can withstand engines up to 15 hp (weighing up to 35-40 kg).
When assembling a boat, always make sure that the ends of the solder sheets do not rest on the seams of the cylinders - this can lead to wiping the PVC fabric over time.
Types of hard bottom: floorboard or NDND?
When you talk about a hard-bottom boat, you often mean the classic pituitary option. NDMA (Low Pressure Bottom) Understanding the difference between them is critical to making the right choice.
Classic floorboard is a prefabricated structure, you spread the sheets, you put them together, you put in stringers (aluminum profiles), and then you pump the cylinders. It takes 15 to 20 minutes, but on the water you get a rigid platform that you can walk on in hard shoes without fear of damaging the bottom. The rigid profile of the bottom better dissects the wave, providing a soft stroke.
Low-pressure inflatable floors (LDPBs) in 350-length models often have rigid inserts or reinforced structure, but still remain inflatable. The main advantage is the assembly speed (5-7 minutes) and less weight. However, you can not walk on such bottoms in shoes with a hard sole, and on planing it can be slightly flexed ("slap") if the pressure in the cylinders is not high enough.
⚠️ Warning: When operating a paiole bottom boat, monitor the condition of the stringers. If the aluminum profile is deformed, it can damage the fabric of the cylinder from the inside, which will lead to depressurization.
For anchor fishing or trolling, the floorboard option is preferable because of better course stability. For frequent trips for an hour or two, where speed of deployment is important, the NDNDM may be more practical, despite some trade-offs in driving performance.
specifications comparison table
To systematize the data and help you decide on the choice, we will compare the main parameters characteristic of high-quality models with a length of 350 cm with a rigid type of bottom.
| Parameter | Pillet boat (Phanera/Aluminum) | NDND boat (inflatable floor) | Catamaran scheme (Two cylinders) |
|---|---|---|---|
| Weight of kit | 45-55 kg | 35-42 kg | 30 - 38 kg |
| Assembly time | 15 - 20 minutes | 5 - 10 minutes | 10 - 15 minutes |
| Permeability | High (hard bottom) | Medium (puncture risk) | High (low precipitation) |
| Comfort on the wave | Nice (wave cutting) | Good (depending on pressure) | Low (strong pitching) |
Choice of motor for boat 350
Engine power is directly dependent on the load capacity and shape of the cylinders. For most models of the 350th length, the optimal range is considered to be power from 9.9 to 15 horsepower. Two-stroke engines in this class are more popular because of the lower weight, although four-strokes are more economical and quieter.
It is important to consider the weight of the engine in the assembly. Tran PVC 350 boat is usually designed for a load of up to 40 kg. If you choose a heavy four-stroke weighing 45 kg, the stern will begin to sink into the water, which dramatically worsens handling and can lead to flooding of the cockpit with water. keel or additional inflatable elements to lift the nose.
To get on plane with one person (about 80 kg) and minimal equipment is often enough 6-8 hp However, for a full fishing together with a load of gear and anchor power in 9.9-10 hp is the "gold standard".
When choosing a de-engine, pay attention to the length of the de-dvigal. For PVC 350 boats, the standard length (S) is usually suitable, but if the cylinders are very wide or an inflatable keel is installed, a long leg (L) may be required so that the screw does not touch the bottom and does not lose efficiency.
- 🚤 two-stroke motors: Lighter, cheaper, work in any rolling position, but noisier and require mixing oil with gasoline.
- 🔇 four-stroke motors: Quieter, more economical, more environmentally friendly, but heavier and more expensive to maintain.
- ⚖️ Balancing: It is critically important to correctly position the motor on the transom in height and angle of inclination to avoid cavitation.
What is cavitation and how is it dangerous?
Cavitation is the formation of vapor bubbles in a liquid that collapse at tremendous speed, creating a shock wave. For an outboard motor, this means falling traction, overheating and breaking the propeller blades. It occurs when the motor is lifted too high or the anti-cavitation plate is damaged.
Operation and preparation for the season
A hard bottom PVC boat requires more preparation than a simple inflater, and the unit floor assembly is a process that needs to be automated, and the cylinders are first laid out, then the floorboard is inserted, the stringers are fixed, and then the pumping is done.
The pressure in the cylinders is a critical parameter. To enter the planing mode, the cylinders must be pumped to 0.2-0.25 atm (or to hardness when the surface is only slightly bent when pressed with a finger), insufficient pressure will lead to deformation of the body at speed, yawing along the course and increased fuel consumption.
Pay special attention to the cleanliness of the bottom before packaging. Sand caught between the paiola sheets works like an abrasive. During the season of active use, it can wipe through the PVC fabric. Always wash and dry the boat before you put it in a bag.
☑️ Checklist for boat assembly
Care, storage and security
Polyvinyl chloride (PVC), which is used in cylinders, is afraid of ultraviolet light and extreme temperatures; prolonged storage in direct sunlight reduces the life of the material; the ideal conditions are a cool, dark room with temperatures ranging from -10 to +30 degrees.
Transportation When assembled on the roof of the car, it is permissible, but requires high-speed (no more than 80-90 km / h) and reliable fixation. Wind flow can create lift that can tear off a poorly secured boat. Use special belts with a ratchet mechanism, not ropes that can weaken along the way.
The repairability of PVC is high: small punctures are easily sealed with a remix, but the junction of the fabric and hard floorboard requires periodic inspection. If you notice adhesive dissection or bloating, you need to have a seam inspection, otherwise water can get between the layers of the material.
⚠️ Warning: Never leave a hard-bottomed boat unattended in the sun. When heated, the air in the cylinders expands, the pressure rises, and the seams may burst. In hot weather, blow some of the air.
The service life of a PVC boat depends on the quality of drying before packaging and the absence of sand inside the cockpit.
Frequently Asked Questions (FAQ)
Can I put a 350 engine with a capacity of 18 hp on a boat?
Technically, yes, if the transom can withstand weight and power. However, for a boat 350 cm long, this is often redundant. Increased power above 15 hp will give a minimum increase in speed, but dramatically increase fuel consumption and the risk of water flooding due to deep submersion of the stern. The optimal range is 9.9-15 hp.
How many people are comfortably accommodated in a 350-person boat?
Passport capacity is typically 3-4, but with comfort, gear and the ability to stand up fully (neatly) the boat is designed for two adults, three people fit, but it will be a tight landing "shoulder to shoulder", which is acceptable for short runs, but not for fishing.
Do I need to lubricate the stringers before assembly?
Yes, it's a good habit. Aluminum profiles can become oxidized or contaminated, lightly lubricated with silicone spray, or simply keeping them clean, will make it easier to assemble during the cold season, when the metal is compressed and enters the grooves tighter.
How to keep a boat in winter: assembled or disassembled?
It's recommended that you keep the boat half-assembled (the cylinders are slightly pumped) in a warm room if you have space, and that prevents the cloth from forming, if you don't have space, it's flattened, but it's always clean and dry, and you can't put it in the cold, it becomes fragile.