Choosing a 320 centimeter (or 3.2 meter) long boat is always a trade-off between maneuverability and spaciousness. Grinda boats The brand’s range offers solutions that are easy to transport in the trunk of a passenger car, while maintaining sufficient load capacity for two adults with a full set of equipment.
Why 320 cm? This is a borderline size where you can already confidently put the engine with a capacity of up to 5-8 hp, but you do not need registration in GIMS (depending on the weight of the engine and the total weight of the equipment). Grinda boats This size is often equipped with a reinforced bottom, which is critical for getting on the water in windy weather or in the presence of a small wave, owners of such boats note that 3.2 meters is the “middle ground” for small rivers and lakes.
In this article, we will discuss the design features that are hidden under the label 320 cm manufacturer Grinda. You will learn about the nuances of the build, the features of the PVC material and how to extend the life of your boat. airboard and hard transom tabs, as it depends on them your safety on the water.
Design features of the model 320 cm
The basis of any boat Grinda boats For a length of 320 cm, a tissue density of 750 to 850 g/sq.m. is usually used, which provides high resistance to puncture and abrasion, while the weight of the boat itself, when assembled, remains acceptable for carrying by one person, if the cargo is divided into two bags (separate boat, separate bottom and accessories).
Particular attention should be paid to the system. NDNDB The 3.2 meter size is the most common option with inflatable tubes that form the bottom, which has two undeniable advantages: an excellent wicket stroke that softens the shocks against the wave, and no need to collect heavy aluminum or plywood sheets on the shore.
⚠️ Warning: When operating an inflatable floor boat (BBBB), carefully monitor the pressure in the cylinders. Insufficient pressure can lead to deformation of the hull on the move, and excessive pressure can lead to rupture of the seams in hot weather.
The 320 cm tray tab is made of waterproof plywood, often reinforced, and it's placed in a special pocket and fixed by slings. The stiffness of the transom directly affects the efficiency of the motor. If the transom walks, you lose some of the traction and increase fuel consumption.
- 🚣♂️ Material: High-density reinforced PVC (up to 850 g/sq.m.).
- ⚓ Bottom: Inflatable (NDND) or soldered, depending on the modification.
- 🔧 Tranza: Enhanced, with the ability to install the engine up to 5-8 hp.
Grinda's secrets
Grinda boats seams are laminated using two-component polyurethane adhesive, which provides a sealability comparable to factory welding, but allows local field repairs when remixed.
specifications and load capacity
The dimensions of the 320 cm dictate their conditions for load distribution. rated carrying capacity of such models usually varies in the range of 350-450 kg. However, the real operating load at which the boat behaves predictably and safely should be below the limit. Grinda boats Designed with a margin of safety, but neglect the recommendations of the manufacturer is not worth it.
The important thing is the internal volume of the cylinders, and the 3.2-meter model has enough buoyancy to keep the boat afloat even when it's full of water. lifejackets It is a requirement of safety, not just a formality.
The optimal loading of a boat of 320 cm is two people of average build plus 30-40 kg of equipment, exceeding this limit reduces the height of the board above the water and reduces handling.
Let’s consider the main technical parameters in the table for ease of comparison:
| Parameter | Meaning | Note |
|---|---|---|
| Full length | 320 cm | Dimension inflated condition |
| Full width | 140-150 cm | Depends on the pressure in the cylinders |
| Load capacity | 450 kg | Considering the weight of the boat and the motor |
| Working pressure | 0.25 Bar | Recommended for cylinders |
When calculating weight, you have to take into account the mass of the motor itself, and if you use a two-stroke engine weighing 20 kg, it eats up a significant portion of the payload. Grinda boats This size is often recommended for light four-stroke motors or electric motors if you plan to go fishing quietly.
Assembly and preparation for launching
The process of preparing the boat for the water requires a systematic approach. Despite the apparent simplicity, the right sequence of actions prolongs the life of the product. The first thing the boat is laid out on a flat surface, cleared of objects (stones, branches).
The cylinders are pumped in several stages, first the cylinders are filled by about 60-70%, then 10-15 minutes are expected to straighten the folds of the material, and only after that the final pumping to the working pressure is made. foot-pump The compressor speeds up this process significantly.
☑️ Ready to descend
Seats are placed in special lyctroses or clamps, and it's important to secure them so they don't move when they're moving. Once the squirrel board is installed and straped, the boat can be carried to the water. Grinda boats On the shore of the thread is not recommended - this leads to rapid abrasion of the bottom.
- 🌡️ Temperature: Do not leave a fully pumped boat in the direct sun in the heat.
- 💨 Wind: Inflate the boat against the wind so it doesn't sail.
- 🛶 Transport: Use a protective cover or lining when transporting in the trunk.
Operation with motor and paddle paddles
The versatility of the 320 cm model is that it can be used both mechanical and motor thrust. The paddles included in the kit are made of durable aluminum or composite. They are convenient for maneuvering in quiet water or in case of engine failure. However, for long transitions, relying on paddles in a boat of such displacement is quite labor-intensive.
When installing the motor, it is critically important to set the correct differentiatorTo do this, the load (battery, anchor, gear) is distributed so that the transom is slightly submerged, but does not go under water. The motor is attached to the transom board with rods. Before starting the engine, always check the reliability of the mounting.
⚠️ Warning: The engine can only be started after the boat is fully on the water, and the engine can be operated in the air for even a few seconds, causing overheating and failure.
To save fuel and reduce noise on boats 320 cm try to keep speed at 70-80% of maximum. This also reduces the load on the transom and seams.
Driving a motorized boat requires habit. Grinda boats They have good course stability, but they can scour on the wave or in side winds, and you need to adjust the course with smooth movements of the bumper, avoiding sharp shifts that can lead to tipping.
Care, storage and repair
The durability of a PVC boat depends on how you store it. After each fishing trip, you have to wash the boat with fresh water, especially if you've been swimming in salt water. The sand and silt left on the bottom act as an abrasive when folding.
Drying is a mandatory step before packaging, and even a small amount of moisture inside a rolled-up boat can cause mold and unpleasant odor. Grinda boats It is better in the straightened form or in a freely folded state in a warm room, away from heating devices.
Small punctures and cuts are easily repaired with a remix, the damage site is degreased, glue is applied and a patch is put on the same material, and it is important to allow the glue to be fully polymerized (usually 24 hours) before use.
Regular inspection of joints and valves helps to identify problems before they become critical. Pay special attention to the places where the cylinders and the bottom dock. Grinda boats It will serve you for many seasons, becoming a reliable partner on the water.
Frequently Asked Questions (FAQ)
Can I use a 320 cm Grinda boat in winter?
The use of PVC boats in winter is possible, but requires extreme caution: the material in the cold becomes less elastic and more susceptible to damage; it is recommended to use specialized frost-resistant greases for valves and avoid impacts on ice. The optimal operating temperature is indicated in the product passport (usually up to -10 ° C...-15 ° C for winter series).
What is the maximum weight of the motor can be put on a transom?
For a 320 cm model, the recommended engine power is 2 to 5 hp, less often up to 8 hp depending on transom gain. Exceeding the recommended power can lead to the destruction of the transom board and an emergency.
How to properly store a boat in the off-season?
The best storage option is half-assembled (not fully pumped) in a case, in a dry room at a temperature of +5 ° C to +25 ° C. Avoid storage on the balcony in direct sunlight or in the cold, as ultraviolet light and temperature changes destroy the structure of PVC and glue.
Do I need to register a 320 cm boat in GIMS?
Under current Russian law, registration is required for small vessels weighing more than 200 kg (in running order) or with an engine of more than 8 hp (5.88 kW). Since a 320 cm boat usually weighs 30-50 kg, registration is required only when installing a powerful engine. However, the rules may change, so current information should be clarified at the local GIMS office.