Among lovers of active recreation on the water, a special niche is occupied aluminum-boatOne of the most popular models in this segment, especially in Siberia and the Urals, was the Ersh. However, for those who are looking for maximum functionality and carrying capacity, the real discovery is the modification. Ersh M.This model is designed to meet the requirements of professional fishermen and hunters, who care not only about speed, but also about the stability of the craft.
Unlike the lighter versions, Ersh M. It has a reinforced hull and larger dimensions, allowing for more powerful mounted motors. It is the ability to use an engine with a capacity of up to 10-12 hp that makes this boat a versatile tool for moving along large reservoirs and rivers with moderate currents. In this article, we will discuss in detail the design features, technical nuances and possibilities of modernizing this popular boat.
Structural features of the body
Basis of boat reliability Ersh M. is an all-welded body made of aluminium alloy aircraft AMG5MThis material is not chosen by chance: it has high corrosion resistance and excellent weldability, which is critical for operating conditions in fresh and salt water. The bottom and sides vary in thickness from 2 to 3 mm, which ensures the necessary rigidity of the structure without excessive weighting.
An important feature of the design is the presence of boulder These elements not only increase the width of the boat, but also create an additional air cushion that increases stability on the wave, when rolling the boulder take on part of the load, preventing dangerous tilt or even tipping over, this is especially true when fishing while standing or when moving passengers inside the cockpit.
The bow of the boat has a characteristic pointed shape with a pronounced rod-barThis geometry allows you to effectively dissect the wave, providing a gentle ride even in the presence of ripples. The nose has a sealed lock that serves both as a storage device and as an element of buoyancy. In the case of a boat that is filled with water, the airtight compartments allow it to stay afloat.
⚠️ Attention: When you make a boat on your own, you should strictly monitor the quality of the welds. Aluminum requires the use of argon welding and special additive materials. Violation of the technology will lead to the formation of microcracks and rapid destruction of the hull.
Train boat Ersh M. The surface of the transom is often covered with a special anti-friction coating or protected by textolite pads so that the engine screw does not damage the metal during maneuvers in shallow water. The motor is mounted with standard rods, but it is recommended to use a safety rope.
Technical specifications of the model
Understanding the exact parameters is necessary for the correct selection of the engine and calculation of the load capacity. Ersh M. It is positioned as a mid-range boat, surpassing the capacity of the standard two-seater variants. Below is a table with basic technical data that will help you determine the feasibility of buying or building this model.
| Parameter | Meaning | Unit of measurement |
|---|---|---|
| Longest length | 3600 | mm |
| largest width | 1450 | mm |
| Height of board | 450 | mm |
| Load capacity | 400 | kilogram |
| Engine power | 12 | hp |
The boat’s capacity is officially designed to three-personThe cockpit's increased width allows for the placement of fishing boxes, a machine tent and other overall equipment without loss of stability, and the boat weighs about 60-65 kg, making it portable on the roof of a car or in a trailer.
Speed specifications are directly dependent on the powerplantWith a 5 hp engine, the boat has a speed of about 15-18 km/h, which is an economical mode. When you install the engine 9.9-12 hp, the speed can reach 30-35 km/h, turning it into a new engine. Ersh M. (c) a high-speed vessel capable of covering long distances in a short time.
Advantages and disadvantages
Like any other technical device, the boat Ersh M. Aluminum boats are valued for their durability, but they have specific operational features that distinguish them from fiberglass counterparts or inflatable PVC boats.
- 🛡️ High strength: Aluminum alloy is almost impossible to damage when hitting a snag or stone, making the boat ideal for shallow water.
- ❄️ All-weather: The boat can be operated at any temperature, stored in the cold without loss of properties and not be afraid of ultraviolet light.
- 🔧 Repairability: Any hole can be brewed or put an aluminum patch even in the field with the availability of equipment.
- 🌊 Noise: The metal body resonates with sound, so the shocks of waves or fallen objects sound louder than in boats made of other materials.
- 🧊 Thermal conductivity: Aluminum cools down quickly, so sitting on a metal bottom without mats in cold weather is uncomfortable.
A significant advantage is the absence of the need for complex care. aluminum It does not rot, does not require painting (if the natural color of the metal is used) and is not afraid of rodents, which often spoil PVC. However, it should be remembered that galvanic corrosion is possible when in contact with other metals in salt water, so the use of zinc treads in such conditions is mandatory.
The Secret of Silence in an Aluminum Boat
To reduce the noise of the aluminum boat, many owners paste the interior and bottom of the sides with vibration insulation materials used in the automotive industry, which also reduces heat loss and makes staying in the boat more comfortable.
Independent construction according to drawings
Many enthusiasts prefer to build. Ersh M. They're handmade, because factory models can be expensive or not available. drawingSelf-manufactured craftsmanship can save up to 50% of the cost and adapt the boat to your personal needs.
It starts with cutting the sheet aluminum into patterns, using plasma cutting or special metal scissors, and it's important to follow the geometry of the patterns, because the slightest deviation can lead to problems in the construction of the frame, and once cut, the parts are killed on the sheet-bending machines or manually using wooden bars.
☑️ Tools for building a boat
The shell is assembled on a slipway or flat surface, and the frames are assembled first, and then stringers are joined together to form a spatial frame, and the skin is welded, and the geometry is checked, and the final welding of the seams must be done by an experienced welder, because the welder has to be the first to weld. burnout It is unacceptable and leads to loss of strength.
⚠️ Warning: Do not use food aluminum or duraluminium for the construction of the boat without special processing. Food aluminum is too soft, and dural is corrosive and poorly cooked at home. Only the AMg5M alloy guarantees safety.
Operation and maintenance
Durability of the boat Ersh M. Although aluminum is considered a low-key material, disregarding basic rules can shorten the life of a boat, and special attention should be paid to welding sites and attachments.
After each operation, especially in salt water, the boat must be rinsed with fresh water. electrochemical corrosionIf the boat is used for fishing with live nozzles, make sure that moisture and organic matter do not stagnate in the hold for a long time.
Lubricate the switch hinges and mount the motor with silicone lubrication after each trip, which will prevent jamming of the mechanisms due to oxidation and ingress of sand.
Keeping the boat upside down under a canopy or in a garage is best. Direct sunlight is not terrible for metal, but can damage rubber seals and wooden elements (if any). In winter, the metal compresses, so it is not recommended to sharply load the boat immediately after skidding from the cold into the heat.
Tuning and refinement
Boat owners. Ersh M. They often use tuning to improve comfort and functionality. One of the most popular improvements is the installation. cross-plate Or a hydrofoil on the motor, which improves planing output and reduces yaw, and often the seating system is refined.
Standard hard seats are replaced with soft seats that can be adjusted or turned, which significantly reduces fatigue during long transitions, and many install windshields that are attached to a timber, and sun awnings, turning the boat into a full-fledged mini-boat for rest.
- 🔦 Lighting: Installation of LED tapes around the perimeter of the cockpit for night fishing.
- 🎣 Fishing attributes: Installation of holders for fishing rods, brackets for sonar and GPS-navigator.
- 📦 Storage: Organization of additional sealants inside the housing for tools and spare parts.
- ⚓ Navigation: Installation of an anchor leer with a roller and an anchor dip in the nose.
Competent tuning boat Ersh M can turn a utilitarian boat into a comfortable boat for family holidays, but do not forget that any change in design must be consistent with the rules of GIMS, if it affects stability.
What is the real load capacity of the boat Ersh M?
Although the rated carrying capacity is 400 kg, in practice, 250-300 kg (two people and equipment) is considered a safe load for confident planing with the engine, exceeding this weight dramatically reduces speed specifications and increases the risk of being overwhelmed by a wave.
Can I use the boat Ersh M in winter?
Yes, aluminum boats are great for winter use, metal does not lose strength in the cold, but you should be careful with the icing of the sides, which can disturb the centering, and use special non-freezing lubricants for moving parts.
Do I need to register the boat Ersh M in GIMS?
Under current Russian legislation, registration is required for small vessels weighing more than 200 kg (including an engine) or with an engine capacity of more than 8 kW (about 10.8 hp). Since the Ersh M is often equipped with engines up to 12 hp and has a weight of less than 200 kg, formal registration may not be required, but the presence of documents for the hull (boat registration certificate or contract of sale) is mandatory.
What is the maximum wave size for this boat?
The boat is classified as an inland water body, and the wave height is safe. Ersh M. The access to open water at a larger wave is prohibited by safety rules, since the low-breast structure is not designed for ocean or sea storm conditions.