The modern watercraft industry offers many options for lovers of water walks and fishing, but NDNDB inflatable It's a very special feature, and it stands for "Low Pressure inflatable floor," and it's this design feature that makes it incredibly popular, and unlike hard solder floors, it uses a system of straps strung inside the shell, which allows you to pump the bottom to a solid surface without using plywood or aluminum.
Choosing a boat like this is often a trade-off between ease of transportation and comfort on the water, so you don't have to carry heavy sleighs and topping up with the construction on the shore, just pump the cylinders and the bottom with a pump, and the boat is ready to go down, and this saves time and effort, especially if you plan frequent trips alone.
But despite the apparent simplicity, the design of NDND has its own nuances to consider when buying: from the quality of PVC material to the right pressure in the cylinders, everything affects the performance and durability of the product. Let's take a look at the key aspects that will help you make the right choice.
Design features and principle of work
The basis of any model of BND is a complex system of internal connections, the bottom is a closed volume, within which vertical strands (slings) connect the upper and lower surfaces, and when pumped with air, these slings are stretched, creating a rigid plane that can withstand the weight of passengers and cargo. Air Deck Technology It allows you to achieve enough pressure to install an inflatable bench or even a small motor, without the risk of deformation.
It is important to understand that floppyness It's very much dependent on the quality of the sling system and the density of the material, and cheap analogues can play underfoot, creating a trampoline effect that's not always comfortable with long-term fishing, and quality models don't have this disadvantage and provide a sustainable platform.
⚠️ Attention: Never leave a pumped NDND boat under direct sunlight unattended. The pressure inside the cylinders increases proportionally to the temperature, which can lead to rupture of the seams or deformation of the structure.
The boats also have their own specifications, and they consist of several independent compartments, which ensures buoyancy even in the event of a puncture of one of the cylinders. quilt longitudinal beam at the bottom - gives the boat stability and improves course stability when driving for an outboard motor.
Advantages and disadvantages of NDLD models
Before buying, you need to weigh all the pros and cons. The main trump card of such boats is their lowweightThe absence of heavy plywood floorboards and aluminum profiles makes it easy to carry the boat even for fragile girls or adolescents. When assembled, it takes up minimal space in the trunk of the car.
On the other hand, there are limitations, and the inflatable floor is more susceptible to mechanical damage from sharp objects on the shore or in the water. hydrodynamic specifications They are inferior to boats with a hard bottom: acceleration is slower, and fuel consumption can be higher due to greater water resistance.
- 🚀 Mobility: Quick assembly and disassembly in 10-15 minutes without the need to dry the elements.
- 🎒 Compactness: In deflated form, the boat is placed in a backpack or a small bag.
- 🛡️ Safety: soft sides reduce the risk of injury and do not scratch the body when mooring.
- 📉 Speed limits: They are not designed for high plane speeds with powerful motors.
It's worth noting that modern materials minimize the drawbacks. High-density reinforced PVC makes the bottom resistant to abrasion. However, for aggressive operation on rocky rolls, it's still better to consider hard bottom options.
Boats are ideal for quiet fishing, cruising and hunting, but are not a substitute for full-fledged planing boats for high-speed walks.
Selection criteria: size, material and load capacity
The choice of the particular model depends on your goals. If you plan to fish alone or together from the shore, you will need a compact two-seater model. For trophy fishing or access to large water with a supply of equipment, you will need a larger boat. Load capacity It is a key parameter that cannot be ignored.
The fabrication material also plays a role. Most manufacturers use PVC (polyvinyl chloride) of varying densities. Inflatable floor density is critical because it is under the greatest stress. The optimal value is at least 750-850 g/sq.m. for the bottom.
| Size of the boat | Capacity (person) | Recommended motor (hp) | Kit weight (kg) |
|---|---|---|---|
| 240-260 cm | 1-2 | 2-5 | 15-20 |
| 280-300 cm | 2-3 | 5-9.9 | 22-28 |
| 320-340 cm | 3-4 | 9.9-15 | 30-38 |
| 360+cm | 4+ | 15-20 | 40-50 |
Pay attention to the presence tranny-belt It's a reinforced tape around the perimeter of the tank, where the transom is attached, which increases the life of the boat and allows you to use more powerful engines without the risk of tearing off the transmuter board.
Why is PVC density important?
The density of the material is measured in grams per square meter. The higher the figure, the stronger the boat, but also the heavier. For an inflatable floor (BND), the density should be maximum, since it is the bottom that takes the main load during pumping and operation. The thin bottom will quickly stretch and lose its rigidity.
Installation and operation of the outboard motor
The use of the motor on the NDND boat requires certain rules to be followed, because the transom is fixed to the inflatable tubes, the vibration is transmitted to the entire structure, and the tightening of the NT nuts must be checked regularly. Straining It can damage the material, and the defect will cause the engine to shift during the stroke.
These boats are ideal for lightweight two-stroke or four-stroke low-power engines, which provide enough traction to enter planing mode with 1-2 passengers without overloading the structure. It is important to correctly set the angle of inclination of the lower unit, so that the boat does not "dig" or "wipe the stern".
⚠️ Attention: When installing the motor, make sure that the anti-cavitation plate is below the bottom of the boat, but not too deep to create unnecessary resistance.
Don't forget to be safe, even at low speed, safety-line If a person falls overboard, the engine should stop immediately.
☑️ Checking before getting on the water
PVC care, storage and repair
The durability of your boat depends on how you care for it. After every trip to the water, especially in salt water or in the mud, the boat needs to be washed with fresh water. The salt and sand act as an abrasive, destroying the protective layer of PVC. You need to dry the product in the shade, completely straightened.
Storage should be carried out in a dry, cool place at a temperature of -20 to +40 degrees. It is not recommended to keep the boat in a assembled and pumped state for a long time, as this leads to residual deformation of the material.
In the case of a puncture, you don't have to panic. The repair kit that's available on the market is able to repair most of the damage in the field. The puncture site is degreased, the patch is pasted from the same material and rolled. two-component And warm up the dryer.
- 🧼 Cleanup: Use a soft sponge and soap solution, avoid aggressive chemicals.
- 💨 Drying: Make sure to dry the boat before packing to avoid mold.
- 🔧 Audit: Once a season, check the valve for leakage with soapy water.
Timely care extends the life of the product for many years, even small scabs are better to seal immediately, without waiting for the formation of a through hole.
For quick drying of the boat at home, use a regular household hair dryer (cold) or simply wipe the surface with absorbent rags before packaging.
Popular Questions and Answers (FAQ)
Is it possible to go against the current on a NDND boat?
Yes, but with limitations, inflatable boats have less stability than cider or hard bottom models, are more difficult to drive on high current and wind, are more susceptible to demolition, and it is recommended to use a motor with a power of at least 5 hp for confident movement against the current.
What is the optimal pressure in the cylinders and bottom?
For the sides, the pressure is usually recommended 0.2 atmosphere (or by marking on the valve), and for the inflatable floor - up to 0.4-0.5 atmosphere. The exact values are always indicated in the product passport. Under-pumped bottom will quickly lose shape, and the pumped can burst in the sun.
How long has a PVC boat been in operation?
When used carefully and properly, PVC lasts 10-15 years or more, but rubber seals and valves may need to be replaced sooner – 5-7 years, and service life also depends on the frequency of use and conditions (sun, salt, mechanical loads).
What is the difference between a NDND and a sled boat?
The main difference is the floor design. NDND has a low-pressure inflatable floor, which makes the boat lighter and more compact to assemble. The solder boat has a hard floor made of plywood or aluminum, which gives better running and stability, but loses in weight and assembly speed.