Choosing an inflatable watercraft is always a compromise between compactness folded and performance on the water. For many water-engineers looking for a balance between mobility and comfort, the ideal solution is to be a water-powered vehicle. PVC 370 NDNThis model represents a middle ground in the inflatable class, offering enough length for confident glides even with two passengers, while remaining transportable in the trunk of a passenger car.
The abbreviation NDND stands for "inflatable floor of low pressure", which radically distinguishes these vessels from classical models with a hard floorboard bottom. NMND construction It allows you to create a flat, hard surface without the use of heavy aluminum or plywood slabs, which significantly reduces the overall weight of the kit, which makes the size of 370 cm so popular among fishermen and outdoor enthusiasts, who need to quickly gather and go to the pond.
Unlike shorter analogues, the three-meter seventieth model already allows you to confidently install an outboard motor with a capacity of up to 15-18 hp This opens up opportunities not only for quiet fishing by trolling, but also for dynamic movement in large water areas. The main advantage of the NDND is the ability to assemble the boat directly on water or on wet ground, which is not possible with the solder versions, where sand and stones can damage locks or fabric.
Design features and advantages of BDND
The basis of any high-quality boat is the material and assembly technology, and the 370 NDND models most commonly use high-density five-layer reinforced PVC, which is resistant to ultraviolet, gasoline, oil and mechanical damage. inflatable floor in such boats is a complex design of cylinders located inside the main body, which when pumped create a rigid plane.
The most important element of the design is drop-offThey not only add stiffness, but they also form the right hydrodynamics of the hull, making it easier for the boat to get on plane mode. kielson provides excellent course stability, which is especially noticeable when moving against a wave or when side wind.
Technology suture Hypalon-Neoprene, or gluing on top with two-part glue, ensures longevity of the joints. Unlike cheap ones, where the cylinders are simply glued on top, 370 IUUs have each seam undergoing multi-stage control, which is critical because the seams are the ones that experience the most stress when pumped and water is applied.
⚠️ Warning: Never leave a fully pumped NDND boat under direct sunlight unattended. The air inside the cylinders expands when heated, which can lead to overstraining of the seams and even rupture, despite the presence of etching valves.
To improve comfort, many manufacturers equip 370 models of NDND squirrel-tiles reinforced flat-barThis protects the sides from impacts on the berth or on the sides of other boats, and it is also worth noting the presence of rigid inserts in the area of the keys anchorages, which prevents the sides from deforming when rowing if the engine suddenly fails.
Comparison with the model: what to choose?
The eternal boating dispute: NDND or floorboard? To make an informed decision, we need to consider the key differences between these two types of designs. Unite boats have a rigid prefabricated bottom of sheets (aluminum, plywood, plastic) connected together. float-bottom They are devoid of these elements, which gives them a number of unique advantages, but also imposes certain limitations.
The first and most important difference is the weight and build time. Boat 370 NDLD It takes 10 to 15 minutes to assemble, whereas it can take up to 40 minutes to assemble a soldering unit, especially in cold winds, and the absence of heavy plates makes the kit 15 to 20 kg lighter, which is essential when loaded into a car or carried to water.
But there's a downside to this: the inflatable floor, though stiff, still has less hardness at the kink than the aluminum sheet. When fully loaded (two people, motor, gear), the bottom can bend slightly, requiring proper pumping of all compartments. The table below gives a detailed comparison of the specifications:
| Characterization | Boat 370 NDLD | Pillet boat 370 |
|---|---|---|
| Weight of kit | 45-55 kg | 60-75 kg |
| Assembly time | 10-15 minutes | 30-40 minutes. |
| Bottom hardness | High (at full pressure) | Very high. |
| Transportability | One bag (often) | Two or more bags |
| Assembly on water | Possibly. | Impossible. |
Another important aspect is durability: Paioles can eventually start to luft, locks loosen, and plywood sheets can absorb moisture if the coating is damaged. NDMA It is devoid of mechanical connections, so there is simply nothing to break or wear out during the assembly and disassembly process.
Choice of outboard motor for boat 370
Proper selection of the engine is the key not only to speed, but also safety. For a boat with a length of 3.7 meters with an inflatable floor, the optimal power range is considered 9.9 - 15 hp Two-stroke engines in this class are preferable due to the lower weight, although four-strokes provide better fuel efficiency and less noise.
When the engine is installed on PVC 370 NDDN Balancing is critical, and the center of gravity must be shifted so that the boat does not snooze or bury its nose, and the optimal angle of the trim is determined experimentally by moving the motor along a transom or rearranging the cans (seats).
With a 15 hp engine, such a single-driver boat easily glides and develops speeds up to 35-40 km / h. With two passengers, the speed will drop to 25-30 km / h, which is a comfortable value for moving. The use of more powerful engines (18-20 hp) is possible, but requires increased caution and experience management, as bottom It can not withstand sudden dynamic loads at high speed when meeting a wave.
For two-stroke engines on PVC boats, always use a remote tank if you plan to fish for more than 2 hours. Gasoline vapors in a closed cockpit can be dangerous to health.
It is important to consider the length of the daydwoot. For boats 370 cm is usually suitable standard lower unit (S), but if you plan to sail with a full load, it is better to consider the option of a long daydwoot (L), so that the screw is always in the water and does not capture air.
Comfort and equipment: what to pay attention to
When you buy a boat, you buy not just cylinders, but a place to relax. So the interior is a huge part of the package. The standard set includes inflatable seats (benches), a pump, a remix and a bag. However, for full operation, additional options are often required.
First, pay attention to the presence of stringer Not only do they add stiffness to the structure, they also provide excellent leg support and additional air safety compartments, and in the 370 NDND they are usually present as standard.
An important element is also slate-rugIt's a dense, non-slip coating that fits on the inflatable floor, protects PVC from abrasion by shoes, creates thermal insulation (the bottom is not as cold as it seems), and prevents things from slipping down the bottom when moving.
- 🎣 Fixtures for spinningThe presence of ready-made glasses or the possibility of installing them greatly simplifies the life of a fisherman.
- ⚓ Anchor rum: should be reinforced and placed strictly in the center of the nose for proper anchoring.
- 🔦 Navigational light holders: mandatory for safe movement in the dark according to the rules of GIMS.
☑️ Checking the completeness before buying
Rules of operation and care of PVC
And boat 370 NDLD It's been around for years, and you have to follow a few simple, but important rules of operation, and PVC is a durable material, but it's not permanent. The main enemy of inflatable boats is improper storage and aggressive chemistry.
After each foray into the water, the boat must be thoroughly washed with fresh water, especially if you have been swimming in salt water or a body of water with blooming water. Salt and organics can erode the outer protective layer. Dry the boat in the shade, completely straightened, so that moisture does not remain in the folds.
⚠️ Attention: When folding a boat, avoid sharp cliffs in the same places. Constant bending of the fabric at one point can lead to microcracks and loss of leakage over time.
Store the product in a dry, cool place, preferably in a straightened or half-folded form, to give the material a rest after loading. Regularly check the pressure in the cylinders with a pressure gauge. Under-pumped boat wears out faster on the wave, and the pumped one risks bursting in the sun.
How do you properly seal a puncture?
Use only special PVC glue (two-part) to repair punctures. Degrease the repair site, shook it with fine sandpaper, apply two layers of dry glue, and press the load tightly for 12 to 24 hours. Don't use superglue!
Popular models and manufacturers in the market
The inflatable boat market is full of offers, but among them you can highlight the leaders who have proven themselves in the class 370 NDND. Flagship, Hunter, Aqua, Mniv and Kand also more premium Badger and Zodiac.
Russian manufacturers often win in price/quality ratios using the same imported Korean or German PVC. For example, the models of the “Flagship 370” series are famous for their indestructibility and thoughtful ergonomics. Chinese brands can offer a lower price, but the quality of the glue and the geometry of the seams often vary from batch to batch.
When choosing a particular model, pay attention to the density of the fabric (optimally 750-900 g / sq.m.) and the availability of additional out-of-the-box options, such as transom wheels or rod holders. It is often cheaper to buy the basic version and retrofit it than to overpay for unnecessary functionality.
Choosing between brand and price, remember: repairing a quality boat is rarely required, and cheap can become a problem in the first season of active operation.
Do I need to register the boat 370 NDND in GIMS?
Under current Russian law, boats with an engine of more than 8 kW (approximately 10.88 hp) are subject to registration. If you are installing a 9.9 hp (7.3 kW), registration is not required. However, if the engine is 15 hp (11 kW), registration is mandatory, even if the boat weighs less than 200 kg.
Can I use a NDND boat in winter?
You can use PVC boats in low temperatures, but with caution. The material in the cold swells and becomes brittle. Navigation is possible, but you need special frost-resistant grease for the valves and careful handling, which excludes impacts on the ice. You only need to keep the boat warm in winter.
What is the optimal pressure to pump into cylinders?
The operating pressure is usually 0.2 atm (200 mbar) for the main cylinders and up to 0.25-0.3 atm for the bottom cylinder (keel). The exact values are always indicated in the product passport. You can not pump "by eye" or to the state of "stone" - this will lead to deformation of the seams when heated.