Choosing a swimming aid for fishing or outdoor activities on the water often comes down to finding a balance between comfort, load capacity and transportability. PVC boats with NDD (low-pressure inflatable floor) has become the gold standard for those looking for a universal solution, and unlike slate-bottom or plywood-bottom models, inflatable-bottom designs offer unrivalled buoyancy and glides even with a powerful motor.

The main advantage of these vessels is their ability to keep the wave and keep the course stability. The inflatable floor acts as an additional cylinder, cushioning the impact on the water, which makes the voyage safer and more comfortable. However, despite the obvious advantages, there are a number of nuances that must be considered when choosing to not be disappointed in the purchase.

In this article, we will discuss in detail the design, advantages and disadvantages, as well as give recommendations for choosing a model for specific tasks. NDMA It is considered the best solution for installing an outboard motor with a capacity of 5 to 30 hp and more. Understanding the physical principles of operation of such boats will help you make an informed choice.

Design features and working principle of the NDLD

The acronym for NDND stands for "Low Pressure inflatable floor," which is not just a marketing ploy, but a description of a real engineering design, and the bottom of the boat is a complex system of many longitudinal and transom webs connected by high-tech threads, and when pumped with air, these threads are pulled together to create a rigid surface that resembles a high-strength inflatable mattress.

The key element here is technology. Drop-Stitch It's enough to keep the surface from carrying the weight of passengers, motors and cargo, and it's basically flat, unlike sleigh floors, which can bend or shift. bottom It always retains its geometry.

And it's important to note that these boats are often equipped with a keelson, a longitudinal inflatable element that runs along the entire length of the bottom, and the keelson not only gives the bottom a V-shaped shape, but also serves as a power beam that distributes the load from the motor and the wave shock, which is critical for safety when going out into open water or when going against the wind.

⚠️ Warning: Never leave a pumped boat with NDND in the direct sun on a hot day unattended. The air inside the cylinders and bottom expands when heated, which can lead to a critical increase in pressure and rupture of the seams or valves.

Modern models are also often equipped with inflatable stringers, side stiffness elements that connect the bottom to the sides, which turns the boat into a single monolithic hull, which significantly improves driving performance. reinforced PVC High density guarantees the durability of the structure even during intensive operation.

Advantages of Boats with inflatable floor for the Engine

The main reason for the popularity of NDNDM among water engines is the possibility of confident entry into the mode planingWith a hard and flat bottom, the boat can easily jump on a water ski, even with relatively weak engines, which allows for high speeds and fuel savings, which is not possible on soft or sagging bottom boats.

The second undeniable advantage is the all-season use: the inflatable floor does not freeze as much as plywood, and does not absorb water. You can confidently fish in early spring or late autumn without fear of the floor becoming icy, and the lack of wooden elements eliminates the risk of rotting and mold.

The transportability of these boats is also high, and despite the greater weight compared to slate models, they still fold into one or two bags. You don't need a trailer or a huge roof trunk, enough of a station wagon trunk or even a sedan backseat, making them ideal for those who don't have the ability to keep the boat in the garage all year round.

  • 🚀 High speed: Optimal hydrodynamics allows you to easily reach the bar 30-40 km / h.
  • 🌊 Seaworthiness: The ability to safely go on the wave up to 0.5-0.7 meters.
  • 🛡️ Safety: Many insulated compartments provide buoyancy even when one of the cylinders is punctured.
  • 🎣 Sustainability: The wide and rigid platform is convenient for catching standing or in motion.

Comfort is also worth mentioning. The inflatable floor has excellent shock absorbing properties. When the wave passes, the shocks are extinguished by the structure itself, which reduces the load on the fisherman's spine. When combined with inflatable seats (banks) or soft podiums, this boat turns into a real floating sofa.

📊 What is more important to you when choosing a boat?
Price.
Weight gathered
Load capacity
brand

Comparison with other types of bottom: BND vs. sleigh

When choosing a boat, the buyer often faces a dilemma: take a time-tested slate or modern NDNDM. The slate bottom They're lighter and cheaper, they're faster to assemble and weigh less, which is important for single models or for female fishermen, but they have a major drawback: they don't have a keel and they don't have a hard bottom fixing.

Sleigh boats, when they go out for planing, often have the effect of slapping the bottom against the water, especially on the oncoming wave. Sleigh can shift, creating discomfort. NDMA It's not without these disadvantages, but it's losing weight, and it can be anywhere from 5 to 15 kg depending on the size of the boat, which is a critical factor for some users.

Aluminum flooring is an intermediate, harder plywood and not afraid of water, but the pyol boats are the heaviest and longest to assemble, and NDNDND beats floorboard in terms of assembly speed and compactness when folded, second only to absolute rigidity, which, however, is hardly noticeable on the water.

Characterization NDND (inflatable floor) Slan (Fanera) Pyol (Aluminum)
Boat weight Medium/Severe Light. Very heavy.
Assembly speed Average (15-20 min) Fast (10 min) Long (30+ min)
Comfort on the wave Highly Low. Medium.
Price. High. Low. Medium/High

So when you choose between these two options, you have to be honest about how often you're going to drag a boat alone, and if you have a helper or a car standing right by the water, you're going to have to do it alone. NDMA If every gram counts and the boat is carried through the forest on its shoulder, then you should look at the lightweight slate models.

The secret to longevity of NDB

Many users are unaware that the inflatable floor can be further protected from puncture by using special liquid sealants for PVC or by applying additional strips of fabric to the places of friction on the rocky bottom, which prolongs the life of the bottom at times.

Selection criteria: size, engine power and materials

The first and most important parameter is loading capacityNever take a boat back on the boat. If you have a rated carrying capacity of 400 kg, it doesn't mean you can load 400 kg and go there. You have to consider the weight of the boat, the engine, the fuel, the gear and the passengers. The optimal margin should be 20-30%.

The second criterion is compatibility with the engine. For boats up to 3.2 meters in length, engines up to 5-8 hp are usually recommended. Models 3.4-3.6 meters long confidently carry engines 9.9-15 hp Boats from 3.8 meters and more allow you to install engines with a capacity of 18-30 hp and above. passport.

Materials play a crucial role in durability. Look for boats made of five-layer reinforced PVC density of at least 750 g/sq.m. (for the bottom - 900-1100 g/sq.m.). Seams must be made using technology. plugging It's a two-part polyurethane glue, and threaded seams are a sign of a cheap, short-lived design that you'd better stay away from.

Notice the additional options: rod holders, perimeter liner cable (which you can hold in water), sonar mounts, a transom with the ability to adjust the angle of inclination of the motor. All these little things become necessary during operation.

  • 📏 Length: The optimal universal size is 340-360 cm.
  • ⚖️ Weight: Keep in mind that the boat 3.6 m with NDND weighs about 50-60 kg without an engine.
  • 🔧 Tranza: It should be reinforced with plywood or composite overlays.

A high-quality boat with NDNDT cannot be cheap because of the complexity of the production technology and the cost of materials, which can result in the boat drying up or bursting at the seams in its first season of active use.

☑️ Pre-purchase check

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The inflatable boat market is saturated with offers today, but there are brands that have proven themselves as reliable manufacturers. Flagship, Solar. and Mneve and KThese companies have long been engaged in the production of boats with NDNDM and have well-established technologies.

Model series U's flagship (e.g., 340, 360, 380) are considered classics of the genre, and they are distinguished by their wide balloons, powerful cylinders and high-quality cut. Solar. They are known for their light weight while maintaining the strength of NDND, which is achieved through the use of special fabrics.

Chinese brands such as Hunterboat or GladiatorThey also offer interesting solutions, and they often copy time-tested designs at a more affordable price, but when buying Chinese, you have to be careful about the quality of the glue and accessories.

Special attention should be paid to boats with technology. AirDeck This is an evolution of the classic BNDM, where the bottom can withstand even more pressure and is almost unfeeling, and this is often the model chosen by professional anglers.

⚠️ Warning: When buying a boat, be sure to check the date of production. PVC tends to age even in a warehouse. It is not recommended to buy a boat that has passed more than 2-3 years since its release, even if it was in ideal conditions.

When you choose a particular model, read the feedback of real owners on the forums. Often it is in discussions that nuances that are not mentioned in advertising brochures emerge: how the boat behaves in a real squall, whether the handles unstuck in the cold, how real the declared specifications are.

Operation, storage and maintenance of a BDLB boat

The right care is essential to the long-term life of your boat, and after every fishing trip, especially in salt water or in polluted water, the boat needs to be washed with fresh water, salt and dirt destroy the structure of PVC and promote the development of microorganisms.

Drying is a critical step. You can't fold a wet boat! It will cause mold to corrode the fabric and oxidize the seams. You need to dry in the shade, in the straightened form. Direct sunlight when drying is also harmful, because it can lead to uneven air expansion and deformation.

Keeping a boat with NDND is best inflated (if there is space) or in a half-blown form in a spacious bag at room temperature. You can not keep the boat in a compressed state under heavy objects. In winter, the optimal storage temperature is from +5 to +20 degrees.

Check the pressure in the cylinders regularly. A boat that is under-pumped loses its driving performance and wears out faster on the wave. A boat that is over-pumped risks bursting. Use a pressure gauge, especially when changing ambient temperatures.

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For quick drying of the boat in the field, use a car compressor in blow mode (if there is such a feature) or simply wipe the surface thoroughly with a microfiber before packaging.

Small punctures and cuts are easily repaired at home with a remix, the main thing is to degrease the surface and let the glue dry out the time it takes, and even minor damage should not be ignored, since water trapped between the layers of PVC can cause material to dissect.

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Proper drying and storage at plus temperature increase the life of the PVC boat by 2-3 times, maintaining the elasticity of the material and the strength of the seams.

Next Next post: Should I Buy a Boat with NDND?

Low-pressure PVC boats are a choice primarily for those who value comfort and safety, ideal for family vacations, fishing with a boat or three, and for access to large bodies of water where a wave is possible, the high price and weight are offset by excellent seaworthiness and versatility.

If you plan to use the boat primarily on calm lakes and rivers alone, you might need a lighter slate model, but if you want to have one universal tool, "both feast and world," that can withstand severe stress and wind, then you can use it in a very simple way. NDMA - your uncontested option.

Investing in a quality boat with NDND is rewarded with the emotions of safe fishing and confidence in the future on the water. The right model will serve you faithfully for more than 10 years, delighting with stable running and reliability.

Do I need to register a boat with NDND in GIMS?

Registration is required for boats weighing more than 200 kg (in running order) or with an engine of more than 8 kW (about 10.8 hp). If your boat weighs less than 200 kg (without an engine) and you put the engine up to 10 hp, registration is not required. However, the rules may change, so always check the current information at the local GIMS office.

What pressure to pump into the NDND?

The optimum working pressure for most inflatable dons is 0.4-0.6 atmospheres (400-600 mbar). In hot weather, the pressure can rise, so it is recommended to pump the bottom to 0.4 atm, and after heating in the sun to pump to normal.

Can I repair my NDM on my own?

Yes, small punctures and cuts up to 5-7 cm long can be repaired independently with a remix and glue for PVC. For serious damage, especially in the area of seams or valves, it is better to contact a specialized workshop, so as not to violate the tightness of the structure.

How do I wash a PVC boat?

Use warm water with a mild soap solution to wash, and do not use aggressive chemicals, solvents, gasoline, or abrasive sponges, as these can damage the protective layer of PVC and make the material sticky or brittle.