Choosing an inflatable boat is always about finding a trade-off between comfort, speed and weight. When it comes to deciding which bottom is better for a PVC powered boat, beginners are often lost in a plethora of terms: slutThe type of flooring not only determines the convenience of the placement of fishing equipment, but also depends on the type of floor. hydrodynamics the body, affecting the output of the glossing.
In this article, we will discuss the main constructive decisions in detail so that you can make an informed decision. Bottom hardness It's the foundation on which the safety and handling of a vessel on the water is based, and the wrong choice can turn a walk into an endurance test or lead to instability in abrupt maneuver.
Modern technology offers a range of options, from classic plywood to high-tech composites. Understanding the physics of the process will help you avoid unnecessary costs and frustrations. Let's dive into the technical features of each type.
Design features and the role of rigidity
The main function of the bottom in an inflatable boat is to create a plane that perceives the load from the weight of the passengers and the engine. outboardSoft bottoms can be bent by propeller traction, creating what's called a "wave" that dampens speed and increases fuel consumption.
The rigid elements, called sleighs, distribute the pressure evenly throughout the cylinder area, and this prevents deformation. PVC material Depending on the design, the bottom can be made up of separate sections or a monolithic slab, which significantly affects assembly and transportation.
⚠️ Warning: Using a soft-floor boat under a powerful motor can cause seams to rupture or transom deformation due to uneven load.
When choosing between different types of floors, you have to consider not only the engine power, but also the operating conditions. turbulence The hard bottom will ensure the stability of the course, and the soft bottom will play, making the control of the boat unpredictable.
Low pressure inflatable floor (LDPB)
Technology NDMA (Low Pressure inflatable floor) has become the standard for high-quality mid- and high-end boats, and the design is a complex system of internal strap partitions that, when pumped, create a rigid but resilient surface. running specifications without the use of heavy components.
The main advantage of NDND is the speed of assembly and the ease of carrying heavy sheets of plywood or aluminum. planingSince the bottom profile is formed by cylinders and an inflatable keel, creating optimal keeliness for cutting the wave.
- 🚀 Easiness: Much less weight in the assembly compared to boats under floorboard.
- 🌊 Hydrodynamics: Perfectly repeats the contours of cylinders, providing a stable exit to the mode.
- 🛡️ Safety: The absence of hard corners inside the cockpit reduces the risk of injury when falling.
But remember, NDND requires a high-quality pump with a pressure gauge, and if you don't have enough pressure, you can deflect and lose speed, and if you have too much pressure, you can damage the internal partitions, and you're also more vulnerable to punctures from sharp objects on the shore or bottom of the pond than you are to the bottom of the pond. metal-sheet.
When assembling a boat with NDNDM, first pump the cylinders to 0.2 atm, then the bottom to 0.25-0.3 atm, and only then finish the cylinders to working pressure. This will ensure the correct geometry of the hull.
Input hard bottoms: Plywood and Aluminum
The classic solution for budget and medium-sized boats is the subdivisions. plywood (usually with a smeared smear) or aluminum-alloyPlywood sheets are cheaper but heavier and fear constant contact with water. Aluminum plyol is lightweight, doesn't rot, but costs more and can be more noisy.
The hard bottom of the sections provides excellent stability when anchored or cast. The fisherman can safely navigate the cockpit without fear of falling. However, the process of assembling such a boat takes longer, and the weight of all the elements in the sum can be significant for one person.
When choosing between plywood and aluminum, it is worth considering the frequency of use and storage conditions. Plywood can eventually dissect if not dried, whereas aluminum is almost always a part of the process. foreverIt is also important to pay attention to the system of attaching sections to each other - reliable locks or slings will prevent the floor from moving during movement.
| Characterization | Plywood plywood | aluminum pyeol | NDMA |
|---|---|---|---|
| Weight. | Heavy. | Medium. | Light. |
| Assembly speed | Low. | Medium | High. |
| Driving performance | Good ones. | Good ones. | Great. |
| Durability | Medium | High. | High. |
Combined solutions and profiled floorboard
There is an intermediate option - boats with profiled Unlike flat sheets, these paioles have longitudinal stiffness ribs and often repeat the keel shape, which improves the boat's running performance by bringing them closer to the specifications of the NDNDM, but retaining the stiffness of the deposit floor.
Profiled bottoms are better at diverting water when hitting a wave, providing a softer ride. However, the cost of such kits can be comparable to the price of an inflatable floor boat. In addition, profile sheets are more difficult to transport because of their shape and inability to fold them into a compact roll.
⚠️ Warning: When installing aluminum floorboard, be sure to check for protective linings on the cylinders. Metal can quickly erase PVC fabric when friction is applied.
Some manufacturers offer hybrid versions, where the center part is rigid and the side part is inflatable, an attempt to combine stability for fishing with good driving performance, but such designs are often more difficult to assemble and require careful fitting of elements.
The secret to quick paiola assembly
The order of the sections is critical, always start with the bow, then the center section, and only at the end with the tannery section, which will avoid floor getting stuck and skewed.
The impact of the bottom type on driving performance and handling
The type of bottom directly affects the boat's ability to go out on the boat. gellingBoats with NDND and profiled floorboard usually go into mode faster and with less engine power. Flat plywood floor creates more water resistance, requiring a more powerful engine to achieve the same speed.
Manipulability also depends on the rigidity of the floor. On a soft or poorly stretched bottom, the boat can prowl, especially when moving against the wave. The rigid design provides a clear response to the roaming of the ramp. keel And a hard bottom profile.
It's important to consider the weight distribution, because in a bottom-up boat, the center of gravity may be higher than in a NDND model, where the pressure is distributed over the entire area. stability The ability of the boat to return to its original position after rolling.
- 🏎️ Speed: NDND gives a gain of 3-5 km / h compared to flat floorboard at the same power.
- 🌪️ Excitement: Hard profiled bottom cuts the wave better, soft - cushioning, but sails.
- ⚖️ Balance: Uniform load distribution is critical for speed safety.
Operational nuances: weight, wear and storage
When choosing a boat, you can't ignore the weight issue. If you plan to launch the boat alone, every kilogram counts. aluminum pyeol It's lighter than plywood, but it's a win-win for the total weight of the kit, and weight affects not only the carrying capacity, but also the load capacity -- the heavy bottom eats away at some of the payload.
The durability of the materials also varies, plywood is afraid of moisture and requires periodic drying and processing, and aluminum can oxidize (albeit slowly) and scratch cylinders. inflatable floor is prone to punctures, but modern PVC reinforced fabrics have high tensile strength.
Storage of the boat in assembled or semi-disassembled form is only possible for models with NDND (partially) or if there is plenty of space. Unit boats require more space to store sections separate from the cylinders to avoid deformation and mold on the tree.
☑️ Pre-purchase check
Final comparison and selection recommendations
So which bottom is better? The answer depends on your specific tasks. For anchor fishing in a calm body of water, a boat with a boat with a boat with a boat is great. plywoodIt's sustainable, it's cheap, it allows you to move freely, and for cruising, for tourism and for fast travel through large bodies of water, the undisputed leader is the one who is the leader. NDMA.
If you change fishing spots frequently and carry a boat in the trunk of a passenger car, the ease of NDNDT assembly will be a crucial factor, but if the budget is limited and the boat is stored in the garage and used infrequently, then the classic floorboard will be a rational choice.
⚠️ Attention: Do not skimp on pump power. For NDND, a high pressure pump is needed (up to 1 atm in cylinders, 0.3 in the day), a conventional footwork may not cope or overheat.
Ultimately, the best boat is the one that fits your resting style: weigh the pros and cons, assess your physical capabilities and the frequency of your trips, and get the bottom right will provide years of comfortable operation.
The golden rule is that the higher the speed and comfort requirements, the more rigid and technological (NDND/profile) the bottom should be. For static fishing, the priority is hardness and floor area.
Frequently Asked Questions (FAQ)
Can I replace the inflatable floor with a hard floorboard in my boat?
Normally, no. The design of a boat with NDM does not include the installation of attachments, since the shape of the cylinders and the location of the slings are designed to work with the inflated bottom.
What pressure should be pumped into the bottom of the NDND?
The working pressure is usually 0.25 - 0.3 atmospheres The exact values are always indicated in the product's passport, and under-pumped bottom will reduce the speed, over-pumped can cause the seams to rupture in hot weather.
Why is the boat with the floorboard worse on the wave?
The flat bottom has no keel or has it as a separate inflatable cylinder, which creates greater sailing and worse resistance to shocks against the wave compared to the integrated keel in the NDNDM. This causes hard impacts and splashes into the cockpit.
How much heavier is a plywood-bottomed boat compared to NDNDB?
The difference can be anywhere from 5 to 15 kg depending on the size of the boat, and plywood is dense and heavy, especially compared to modern PVC fabrics and airspace.
Can I walk on a boat with NDND fording through a rocky bottom?
Sharp rocks, shells or snags can easily damage the inflatable floor, and for such conditions, it is better to use boats with a tread or hard floorboard, although they do not give a 100% guarantee.