Choosing a reliable boat for fishing or family vacations on the water often comes down to finding a balance between cost, size and comfort. The 320 NDND has proven to be a popular option for beginners and experienced water-engineers, combining a compactness that allows it to be transported in the trunk of a passenger car and enough payload for two people with a full set of equipment.
The key feature of this model is the use of an inflatable floor NDMAIt's a very seaworthy, very stable wave, and unlike traditional peyol structures, it doesn't have to assemble a hard floor of aluminum or plywood sheets, which reduces the time it takes to get ready for launch. The 320 is designed for those who value mobility and are not willing to put up with the loss of comfort for the sake of lightness.
In this article, we will take a closer look at the design, technical and real-world experience of this vessel, and learn about engine compatibility, material care and hidden benefits that are often overlooked when first introduced.
Design features and materials
The basis of the boat is a high-strength reinforced PVC The density of the fabric is usually 850-900 g/sq.m., which is the gold standard for boats of this class. seams are made by double or triple gluing using two-component adhesive, which guarantees tightness even in active operation for many seasons.
System system NDMA The low-pressure inflatable floor is a complex structure of multiple cells connected by internal strutting bands, and when pumped, the bottom becomes rigid, forming a full-fledged keel that cuts the wave and gives the vessel stability, which is critical for safety, because it eliminates the risk of getting a flap at speed, which is characteristic of flat-bottom boats.
⚠️ Attention: When pumping the bottom of the NDND, carefully monitor the pressure. Pumping in hot weather can cause internal bulkheads to rupture, and failure to pump can cause the body to deform and lose driving performance. Use a pressure gauge.
The boats are divided into independent compartments, which provides additional buoyancy in case of damage to one of the chambers. kielsonIt's a squirrel that takes the brunt of the impact, protecting the bottom from breaking, and all the elements are ergonomically integrated into the body without creating any extra protrusions that you can grab onto with your clothes or gear.
Suture production technology
The seams in Rocket 320 are cold vulcanization or gluing with high-strength adhesives, which ensures that the joint is monolithic, where tissue breaks earlier than the seam is detached. Unlike welds, adhesives remain elastic at low temperatures.
Technical specifications of the model 320
The boat’s dimensions are optimized for medium and small waters, with a length of 320 cm allowing two adult passengers to comfortably accommodate, leaving room for gear and catch. The hull’s width provides the necessary stability, allowing fishermen to change position in the boat or even kneel without the risk of tipping over.
An important parameter is the load capacity, which in this model is usually about 400-450 kg. This includes the weight of passengers, motor, fuel and equipment. The design of the transom, reinforced with moisture-resistant plywood or composite linings, can withstand motors up to 5-6 hp, although the optimal range is 2.5-4 hp.
| Parameter | Meaning | Comments |
|---|---|---|
| Full length | 320 cm | Optimal for 2 people |
| Full width | 136-140 cm | Depends on the pressure in the cylinders |
| Diameter of the cylinder | 36-40 cm | High-side dry-board |
| Boat weight | 32-36 kg | No motor or gear. |
| Passport capacity | up to 6 hp | 2.5-4 hp is recommended. |
The displacement and shape of the bow allow the boat to easily rise on the wave without burrowing your nose. However, it is worth considering that with a full load and a powerful engine, the boat can go into plane with difficulty, working mainly in displacement mode.
Benefits of the inflatable floor of the NDND
The main argument in favor of the choice The 320 NDNDM is a type of bottom, and the low pressure design creates a cushion effect, making water travel more gentle and comfortable, and passengers feel less impacted by small waves or ripples, which is especially true for long transitions or catching in windy weather.
The absence of rigid floor elements (floorboard) makes it much easier to assemble and disassemble. You don't have to spend time laying out sheets, inserting stringers and fixing them in the slots. Just spread the boat, pump the cylinders and the bottom, and the boat is ready to descend. This also reduces the total weight of the kit, because you don't have to carry heavy aluminum profiles or plywood.
- 🌊 Excellent seaworthinessThe silky shape of the bottom provides a confident course and a decrease in water resistance.
- 🎒 Compact packagingIn the deflated form, the boat takes up a minimum of space, which is convenient for storage in the apartment.
- 🛡️ Protection from coldThe air between the water and the boat is used as a thermal insulator.
And psychological comfort is also worth noting: the inflatable floor doesn't rattle under your feet like aluminum, it doesn't feel like a hard under you, it cushions your steps when you walk down the bottom, which reduces fatigue, but there's a caveat: an inflated bottom requires more careful handling when mooring to the rocky shore so that it doesn't get damaged by sharp edges.
To protect the bottom of the NDND from punctures when pulling the boat ashore, use special protective linings or simple foam mats, putting them under the stern.
Motor installation and driving performance
The 320mm trayboard is designed to fit outboard motors. lower unit And the height of the installation, to avoid cavitation and to ensure that the propeller works efficiently. The boats with NDND tend to have a slightly raised nose when moving, so adjusting the angle of inclination of the transom (different) plays a key role in achieving maximum speed.
With 2.5-3.5 hp engines, the boat confidently maintains a cruising speed of about 10-12 km / h with two passengers. This is the ideal mode for trolling or going to the catching point. More powerful engines (5-6 hp) allow speeds up to 20-25 km / h, but fuel consumption increases disproportionately, and the load on the transom increases.
⚠️ Warning: When installing the motor, be sure to use a safety cable. Vibration on the plane can weaken the fasteners, and the risk of losing the engine without insurance is very high.
Driving performance The 320 rockets are highly regarded for their course stability, and the boat does not prowl side to side, allowing the rummuler to be released and focused on fishing, but in lateral waves, the sailing of the inflatable tubes can tear the vessel down, so the anchor or the drift is mandatory.
Comfort and interior equipment
The interior of the boat is organized in a rational way, with comfortable handles for carrying and fastening on the sides. fence The nose often has an inflatable bench or a stationary seating area, which can also serve as a foot support.
Seats are fixed by strong mounts that prevent them from shifting during movement, and seats are usually made of moisture-resistant plywood with soft pads, which provides comfort even when fishing for hours, and the space under the seats can be used to accommodate small bags, although access to them is limited when pumped.
- 🪑 ergonomicsThe shape of the seats repeats the anatomy, reducing the load on the back.
- 🔦 Firming.: Availability of hinges for the installation of spinning holders and sonar.
- 📦 Capacity: Possibility of placing a gearbox between passengers.
Special attention should be paid to valves. In quality models, they use frog or screw valves that hold pressure reliably and allow quick air to be released when packing, and are arranged so that they are easily accessible even with the seats installed.
☑️ Checking before getting on the water
Care, storage and winter conservation
Durability of the boat The 320 NDNDM is directly dependent on proper care. After each launch, especially if it has been salty or contaminated, the boat must be thoroughly washed with fresh water. The sand and silt, when dried, act as an abrasive, gradually destroying the PVC protective layer.
Keep the boat in a dry, cool place, protected from direct sunlight. Ultraviolet The main enemy of polyvinyl chloride, which causes it to age and lose elasticity, before packing in a bag, the boat must be completely dry, otherwise mold will inevitably appear inside, which destroys the fabric and creates an unpleasant odor.
Drying procedure:1. Rinse with clean water.
2. Rub with soft rags dry.
3. Leave in the straightened form in the shade for 2-4 hours.
4. fold without dragging the folds too much.
In winter, it is not recommended to leave the boat in a severe cold in a deflated state, as the material becomes fragile. If the boat is stored in a garage or in a country house, it is better to leave it in a slightly inflated state or hang it, eliminating contact with the cold floor.
Proper drying and storage away from sunlight extend the life of the boat Rocket 320 by 1.5-2 times.
Frequently Asked Questions (FAQ)
Is it possible to go out on the boat Rocket 320 to open water?
Access to large open water bodies (Ladoga, Onega, large reservoirs) is possible only in calm weather and in the immediate vicinity of the shore. The boat has a wave height limit (up to 0.5-0.7 meters).
Which pump is best used for pumping NDND?
Any foot or hand pump is suitable for pumping cylinders, however, for the bottom of the NDND, it is highly recommended to use a pump with a foot drive and two modes (first for volume, second for pressure) or an electric pump with pressure control, so as not to overload the muscles and reach the desired 0.2 atm.
Is it really a two-passenger plane?
With a 5-6 hp engine, the plane with two adult passengers is possible, but it will be short-term and dependent on weight distribution. The optimal mode for two is displacement. For stable plane, the boat is designed for one person.
How to repair the boat in the field?
For emergency repairs, it's usually a glue remix, and in the field, you can use a self-adhesive patch, but full-scale degreasing and rolling repairs are best done at home, and you can temporarily seal the hole with regular tape, but only to get to shore.