Multi-day rafting on the river is always a test for equipment, where the comfort and safety of the crew directly depend on the boat. Big raftboat It's not just a transport, it's a houseboat, a food warehouse, and the only shelter from the weather for many days, and unlike the short walks of the weekend, it's not just speed, it's the payload, the stability and the maintainability of the structure that comes to the fore.
Selecting a large boat requires careful route analysis: rough rapids require some qualities, and calm water with a strong thicket requires completely different qualities. Many beginners mistakenly believe that the larger the boat, the safer it is, but this is not always the case. Excessive sailing and inertia can become fatal when passing difficult sections, so it is important to find a balance between size and handling.
In this article, we will discuss in detail which models are suitable for long expeditions, how to properly distribute the weight of the cargo and why the material of cylinders is crucial. multi-raft classic rowboat increased size, which will help to avoid common errors in the configuration of the expedition.
Criteria for the selection of overall craft
The first thing that starts planning is to determine the capacity required. Load capacity Not only should the weight of the passengers be calculated, but also the stock of equipment, tents, sleeping bags and food. Experienced watermen recommend laying a minimum of 30-40 kg of equipment per person, plus the weight of the boat itself, so that the boat does not sit too low in the water.
The second critical parameter is the fabrication material. For large boats, reinforced material has become the de facto standard. PVC The density of the fabric is key: for calm rivers, 750-850 g/sq.m. is enough, whereas for rocky rapids and cliffs, the density of the fabric is 1100 g/sq.m. and above. Thin walls risk puncture on the hidden driftwood or sharp stone.
⚠️ Note: When choosing a large boat, consider the number of independent inflatable compartments, which should be at least three, and ideally four or five, so that if one cylinder is damaged, the boat will remain buoyant and manageable.
The third aspect is the design features of the bottom. For a high-load alloy, a hard or reinforced inflatable floor is critical, which will ensure the stability of the course and allow you to row confidently even when fully loaded. The soft bottom can walk under the weight of the equipment, making the boat unstable on the wave.
Types of large boats: from rafts to catamarans
The market offers several distinct categories of vessels that can be classified as large alloy boats, the most popular are the classic inflatable boats with a throng for an outboard motor, which are often used in conjunction with outboard motors of low power. Flagship or Solar.They are distinguished by a wide cockpit and high sides, which allows you to place a huge volume of cargo inside.
The second type is specialized rafts, originally designed to overcome rough water, which are round, which provides excellent maneuverability and resistance to upheaval, but sacrifices speed and stability on straight sections. rafts They are often used in commercial tourism, where groups of 6-10 people are required to be transported at a time.
The third option is inflatable catamarans, consisting of two or more cylinders and a rigid frame, which is perhaps the most reliable option for complex alloys, since they are practically non-sinking and have a phenomenal load capacity, but their assembly and transportation require more time and effort, as well as the presence of a car with a trailer or on the roof.
- 🚣 Classic PVC boats with transom - universal, suitable for the engine, but less resistant to breakdowns on stones.
- 🛶 Rafts are the maximum safety and capacity, but low speed and difficulty of handling alone.
- 🌊 Inflatable catamarans are ideal for rapids and large loads, but require a frame and complex assembly.
Design features and safety
A large boat has a high sailing speed, especially if there is an awning or arcs for the awning. This creates an additional risk in a strong side wind, so the presence of high-quality awnings. rowing-hole The oars must be durable, preferably with an aluminum or composite shaft, as plastic may not withstand the load when rowing on a heavy vessel.
The most important safety feature is the safety line around the perimeter of the boat, which in the case of overkill, is what people should hold onto, and in large boats, the lears should be sewn to reinforced tapes that run through the tank, rather than just glued to the surface.
To improve safety on large boats, always use unloading vests, even if you can swim well. Cold water and heavy clothing can nullify all swimmer skills in minutes.
Special attention should be paid to transes. On large boats, they are subjected to enormous loads, especially if they use a motor. The reinforced transes must be made of multi-layer plywood or aluminum and securely attached to cylinders. A weak transes is the risk of losing an engine in the middle of a river, which will turn the alloy into a difficult logistical evacuation task.
| Parameter | Boat up to 4.5m | Boat 4.6 - 5.5 m | raft/catamaran |
|---|---|---|---|
| Capacity (person) | 3-4 | 5-7 | 6-10+ |
| Load capacity (kg) | 400-600 | 700-1000 | 1200+ |
| Weight of curb (kg) | 40-60 | 70-90 | 50-80 (without frame) |
| Recommended motor (hp) | 5-9.9 | 9.9-15 | Not applicable / 5-9.9 |
Ergonomics and loading
The correct stowage of things in a large boat is an art on which the stability of the vessel depends. Centre of gravity Heavy loads, such as grocery bags, water and fuel canisters, should be placed along the sides and closer to the stern to raise the nose and improve driving performance.
To protect things from water and maintain buoyancy in the event of a puncture, all cargo must be packed in sealed bags (herms). The use of soft sealants is preferable to hard boxes, as they are easier to fit into the voids between cylinders and do not damage the inner surface of the boat when rolling.
☑️ Checking of stowage
The crew's comfort also depends on the presence of inflatable or rigid seats (cans). On long alloys, sitting on pumped cylinders is uncomfortable and cold. Removable seats must be securely fixed so as not to shift when passing locks or rapids. Some models of large boats provide for the installation of a high-pressure inflatable floor (HPD), which serves as a comfortable seat at the same time.
Motor or paddles: what to choose for rafting?
The use of an alloy motor is a controversial topic. outboard This allows you to travel long distances faster, pass against the current and save the crew's physical strength, especially on wide rivers with strong headwinds, where paddles become physically impossible.
On the other hand, the motor creates noise that scares away fish and disturbs the silence of nature, as well as requires a supply of fuel, which increases the overall weight of the cargo. In addition, in shallow waters and narrow ducts, the motor can be useless or even dangerous because of the risk of damage to the screws against stones or driftwood.
The optimal solution for a large boat is often a combination: a powerful motor for transitional sections and oars as the main and emergency way of movement.
⚠️ Warning: When installing the motor on a large inflatable boat, make sure that the transom can withstand the weight of the engine. Excess power can lead to deformation of the aft part and the transom from the cylinders at the most inopportune time.
Nuances of motor selection for PVC
Inflatable boats are better off with short leg and lower unit tilt. Electric motors are also becoming a popular alternative due to their quietness, but their weight and charging requirements limit the alloy's autonomy.
Care and preparation for the season
The preparation of a large boat for rafting begins long before it goes to the water, after winter storage, you need to check all the seams for stratifications and microcracks, and to do this, I pump the boat and leave it in the sun for several hours, listening carefully and feeling the surface for air leaks.
Special attention should be paid to valves. Large boats use several valves, and failure of one of them can lead to a loss of pressure in the entire cylinder.
Proper drying and packaging after alloy prolong the life of the product. PVC reinforced The boat should be washed with fresh water, dried in the shade (direct sunlight when drying is harmful), and stored in a straightened form or slightly folded in a spacious bag.
Regularly checking the pressure in the cylinders during alloying is a guarantee of safety. In the sun, pressure rises, in the cold falls, so pumping or venting air is a daily procedure.
Frequently Asked Questions (FAQ)
How many people can comfortably fit in a 5-meter boat?
Comfortable accommodation depends on the amount of cargo. For a 5-meter boat, 3-4 people with full equipment are considered optimal. In emergency mode or with a minimum of cargo, you can accommodate up to 6 people, but this will reduce safety and handling.
What glue is better to use for repairing PVC boats in the field?
Field repairs are best suited to two-component polyurethane adhesives, which come in standard remixes, which provide an elastic and water-resistant seam, and conventional household adhesives may not withstand stress and temperature changes.
Do I need to register a large boat in the GIMS?
According to the current legislation of the Russian Federation, small vessels weighing more than 200 kg (in running order) or with an engine with a capacity of more than 8 kW (about 10.8 hp) are subject to registration. Large boats often exceed the weight limit, so the clarification of the weight in the product passport is mandatory.
Can I use a large boat in winter?
Using PVC boats in winter is possible, but it requires caution: in the cold, the material becomes rigid and less elastic, which increases the risk of damage, you need to use special freeze-resistant plasticizers or warm the boat before pumping, and avoid contact with sharp edges of ice.