Choosing a boat for fishing or outdoor activities often leads to a dilemma: what is more important, ease of transportation or maximum comfort on the water? In the inflatable boat segment, models with low pressure inflatable bottoms that perfectly combine these requirements are a special place. The design of the NDND provides a stiffness of the deck comparable to aluminum analogues, while maintaining the ability to quickly assemble without the use of plywood slates. These parameters are shown by boats orca NDMThey have become a standard of reliability in their class.
The Russian manufacturer "Master of boats" for many years has been supplying the market with high-quality products made of reinforced PVC. Their products are famous for their reinforced keel, high-quality seams and thoughtful ergonomics of the cockpit. orca The NDNDM is a complex engineering product where every element, from stringers to valves, plays a critical role in crew safety, and understanding the design will help you not only choose the right model, but also to operate the vessel competently for many years to come.
In this article, we will discuss the technical features, compare popular sizes and answer questions that arise from future owners. low-pressure It is considered a safer and more convenient solution than hard floorboard, and we will also touch on the nuances of installing the engine and properly storing the product in the off-season.
Design features and design of Orca boats
The basis of any inflatable boat is the material from which it is made. Orca NDNDM It uses five-layer high-density reinforced PVC, which is resistant to ultraviolet, gasoline, oil and mechanical damage. heat-gluewhich provide tightness even under extreme loads and temperature changes.
The key element of the design is the bottom itself. Unlike plywood floorboard boats, it uses a system of inflatable tubes that form a hard surface, and there are special channels between the bottom cylinders, where longitudinal and transom stiffness elements are inserted, called stringers. Stringer system It works on the principle of a bridge: it distributes the load from the weight of passengers and the engine over the entire area of the bottom, preventing its deflection and deformation of cylinders.
The boats are separated into independent compartments, which is a critical safety feature. If one of the cylinders is punctured, the rest will keep the boat buoyant, allowing the crew to safely reach the shore. The bow is designed as an inflatable cone that effectively dissects the wave and protects against splashes, ensuring a dry cockpit even when moving against the current.
Technology of production of seams
Orc boats use a coating technique with pre-activation of the glue with hot air, which creates a monolithic compound that exceeds the strength of the PVC material itself, eliminating layering during operation.
Benefits of Low Pressure inflatable floor (LDPB)
Why do many experienced water-engineers choose to modify the NDNDM? The main advantage lies in the comfort and speed of assembly. Inflated bottom creates a shock-absorbing cushion that extinguishes the shocks against the wave. On such a boat you can stand or sit on your knees without the use of additional soft seats, which is especially appreciated by spinning anglers.
The second important aspect is that there are no heavy, bulky plywood slabs, so you don't have to spend time assembling a complex constructor out of floorboards, putting them in slots, and worrying about the wood swelling up from moisture. Orca NDNDM It takes an average of 10 to 15 minutes, and it doesn't take much physical effort, and you just need to pump the cylinders and put in the stringers.
Also worth noting is the thermal insulation properties. PVC filled with air does not conduct heat well, so the feet in such a boat freeze much less in cool water than when in contact with cold aluminum or plywood floors. Leakability of compartments The bottom allows the boat to be used even in the presence of minor damage, since the air is distributed throughout the area.
Use an electric pump with auto-stop function to pump the bottom of the NDNDM. This will avoid uneven pressure distribution and save you energy, especially if you go out on the water alone.
Overview of popular models and their dimensions
The Orca range of inflatable-bottomed boats comes in several sizes, each tailored for specific tasks. Models up to 3 meters long are considered compact and suitable for single-seater fishing or quiet water walks. Larger versions, ranging in length from 3.2 to 3.6 meters, already belong to full-fledged family boats capable of carrying a powerful engine and trophy catches.
For clarity, compare the technical specifications of the most popular modifications. The table below shows the main parameters that will help you navigate your choice.
| Model | Length, cm | Width, cm | Load capacity, kg | Recommended engine, hp |
|---|---|---|---|---|
| Orca 290 NDLD | 290 | 130 | 450 | 5-8 |
| Orca 320 NDLD | 320 | 140 | 550 | 9.9-15 |
| Orca 350 NDLD | 350 | 150 | 650 | 15-20 |
| Orca 360 NDLD | 360 | 155 | 750 | 20-25 |
Model Orca 320 NDLD It is large enough for two full-ride adult anglers, but it remains light enough to carry when disassembled. Larger models such as the 350 and 360 already require a transom wheel for easy transport along the shore, as the kit can weigh more than 40-45 kg.
When choosing a size, be sure to consider not only the number of passengers, but also the amount of equipment. If you plan long multi-day expeditions with a tent and a lot of cargo, it is better to take a model with a margin for carrying capacity. Working pressure in cylinders of large models allows you to withstand serious loads without loss of driving qualities.
Comparison with plywood floorboard boats
The eternal dispute between the proponents of NDND and classical floorboard (plywood floor) has many arguments: plywood floor provides perfect rigidity, which theoretically gives the best way to plane with minimal engine power. However, the difference in speed between well-assembled NDNDND and floorboard on modern boats is almost offset by design improvements.
But the advantage of the ease of use is that the NDND is a huge advantage. Imagine the assembly process: you don't have to climb inside the boat, straighten out heavy sheets of plywood and push them under the sides, at the risk of damaging the fabric. Orca NDNDM You just pump the bottom up, and it takes shape, and this is especially true in cold weather or windy weather.
Another important thing is durability: plywood, even moisture-resistant, has the ability to absorb moisture, become heavier and sometimes delaminate over time, and the inflatable floor lacks this drawback, and the only thing that needs control is the pressure in the cylinders, which can fluctate depending on the ambient temperature. Stability of form The NDT is maintained throughout the life of the product.
⚠️ Note: When assembling a boat, sharp objects should not be used to straighten folds or push stringers. Any scratch on the inner layer of the bottom can lead to depressurization under load.
Rules of operation and maintenance
To the boat orca You've been given a lot of faith for years, and you have to follow a few simple but important rules, especially the pressure in the cylinders, and a boat that's under-pumped loses its running quality, and a boat that's over-pumped in hot weather is at risk of bursting at the seams. Always use the pump gauge to monitor the performance.
After each operation, especially in salt water or in contaminated water bodies, the boat must be washed with fresh water. Sand and salt are abrasives that can damage the protective layer of PVC when rubbed.
Storage should be at plus temperature, in a dry room. Although modern materials are frost resistant, it is not recommended to store them folded at sub-zero temperatures, as PVC becomes brittle. Before packaging, make sure that the boat is completely dry to avoid mold and unpleasant odor.
☑️ Season preparation checklist
Installation of attachments and tuning
The Orca BNDD boats are highly upgradeable, and factory equipment usually includes a basic set of seats, pumps, refits, but owners often add additional accessories to enhance comfort, and have liner cables to which rod holders, sonarers or attachment pockets can be attached.
The transom is particularly important. The reinforced transom allows for higher power motors, but requires the boat to be balanced. When you install a powerful motor, you may need to shift the cans (seats) closer to the nose for the right differentiation. stringer Aluminum, which extends the service life of the channels.
For fishing in the dark or in poor visibility, it is not superfluous to install LED lighting around the perimeter of the cylinders, which not only functionally, but also increases your visibility to other vessels. All attachments must be made using special glue for PVC to ensure that the cylinders are not leaky.
Proper balancing of the boat with the engine and passengers is the key to economical fuel consumption and safe planing. Do not neglect the experimental selection of the position of the cans.
⚠️ Warning: Do not install motors that exceed the maximum allowable power for this model on the transom, this can lead to transomotor tear, boat overturning and injuries.
Frequently Asked Questions (FAQ)
Can I use the Orca NDND boat in winter?
Yes, PVC retains elasticity at low temperatures, but you need to be careful in operation. In the cold, the fabric becomes stiffer, so you need to pump the cylinders strictly according to the pressure gauge, given that the heat will increase. You can't keep the boat in the cold when it's folded.
How long does it take to assemble and disassemble a boat?
It takes about 10-15 minutes for a power user to assemble fully (pumping + installing stringers) and 15-20 minutes for disassembling, drying and packaging. Using an electric pump greatly speeds up the pumping process of the main cylinders.
How to repair punctures in the field?
For reliable repairs at home, it is better to use two-component polyurethane adhesive (for example, 88-NP or specialized adhesives for PVC) and warm the glue site with a hairdryer for activation.
Should the valves be lubricated?
Yes, periodically (once a season or after storage) it is recommended to lubricate rubber valve seals with silicone lubrication, which will prevent the rubber from drying and ensure leakage, as well as facilitate the process of twisting the cover.
⚠️ Warning: When transporting a boat in the trunk of a car, be sure to cover it with a dense cloth or tarpaulin. Dust and small debris stuffed inside the bag can damage the material during subsequent assembly.