Metal boats have long ceased to be the lot of industrial use, occupying a strong niche in the arsenal of avid fishermen and hunters. boatThe kazak model, which has proven to be a reliable and unpretentious option for small rivers and lakes, represents an evolution of the classic kazaks, devoid of their main drawbacks of excessive weight and low stability.
The owners of these vessels value them for their year-round operation and their ability to withstand severe mechanical stress. The hull is designed to meet the requirements of the GIMS, which allows the legal use of powerful motors, ensuring high speed of movement on water. Technical specifications of the boat Ersh MSo that you can make an informed decision about the purchase.
Understanding the vessel's real-world capabilities will help avoid frustrations in extreme conditions, and many beginners underestimate the importance of properly weighting passengers and cargo, which is critical for flat-bottomed designs. Let's dive into the details of how this popular boat is designed and operated.
Design features of the body and materials
The basis of reliability of this craft is the use of aviation aluminum alloy, most often brand AMG5MThis material has a unique combination of strength and corrosion resistance, which is critical for contact with aggressive aquatic environments. The thickness of the bottom and sides varies depending on the modification, but is usually at least 2 mm, which provides protection against impacts on rocky bottom or ice.
Welds are made by argon welding, which ensures their tightness and durability even when the engine is vibrating strongly. Unlike riveted analogues, it excludes the possibility of leaking through rivet holes over time. Hermetic transmuter allows you to install outboard motors with a capacity of up to 15 hp, and the reinforced keelson increases the longitudinal rigidity of the body.
⚠️ Attention: Despite the high corrosion resistance of the alloy, after each fishing in salt water, you need to thoroughly wash the body with fresh water to avoid electrochemical corrosion in the welded seams.
The bottom of the boat has a pronounced zygomatic line, which has a positive effect on driving performance. When going out for sleeving, water is effectively diverted to the sides, reducing splash formation. The nose has a knuckle for storing gear, which also acts as a boolean compartment, which increases unsinkability.
Why exactly the AMg5M alloy?
Aluminum-magnesium alloys of the AMG series are not thermally hardened, but have excellent weldability and high corrosion resistance in marine and river climates, making them ideal for small-form shipbuilding.
Overall dimensions and weight parameters
For many owners, the key factor in choosing is the size-to-weight ratio. The Ersch M boat is designed to be large enough for two or three people, but still be transportable on a passenger trailer, with a total hull length of 3.5 meters, which is the optimal value for lake fishing.
The width of the midfield provides the necessary stability, allowing fishermen to stand up to full height to throw gear or spinning. The height of the board protects against flooding with a wave, but caution should be exercised when fully loaded. The dry weight of the structure allows one person, in the presence of a wheeled trailer or a red tape, to move the vessel to the descent site.
Below is a table with the basic technical data to help you navigate the space and logistics:
| Parameter | Meaning | Units of measurement |
|---|---|---|
| Full length | 3500 | mm |
| maximum width | 1380 | mm |
| Height of board | 450 | mm |
| Load capacity | 400 | kilogram |
| Body weight | 75 | kilogram |
It is important to consider that the specified weight is a base and can vary slightly depending on the configuration and year of production. When transporting on the roof of the car, wind load and dimensions of the vehicle must be taken into account.
Capacity and load capacity
With a 400kg passenger capacity, three medium-sized adults can be accommodated with the necessary equipment, but real-life practice dictates that fishing is comfortable and safe, with two passengers, leaving room for dynamic stresses when you are excited.
The distribution of cargo plays a critical role. Centre of gravity The seats should be in the diametric plane and closer to the stern, but not shift excessively so as not to burrow into the wave. The seats (banks) are arranged so as to provide balance, but they can be rearranged depending on the task.
The interior is organized rationally: the nose trunk is covered with a lid and protected from water, which allows you to store dry clothing, fuel or food. There is enough space in the stern to install fishing boxes or sonar. When fully loaded, the sludge increases, which should be considered in shallow water.
⚠️ Warning: Exceeding the maximum load capacity even by 50 kg significantly reduces stability and makes the boat prone to tipping over with a sharp movement of passengers or a gust of wind.
Driving qualities and compatibility with motors
A flat bottom with a small cheekbone involves the use of medium-power motors. Ersh M. are considered engines from 5 to 9.9 hp With such an engine, the boat confidently goes on plane with one or two passengers, developing speeds up to 25-30 km / h.
A more powerful motor, such as 15 hp, is technically possible, but requires strict adherence to loading rules. At high speed, a flat bottom can cause a strong impact on the body and passengers when passing the wave. Therefore, for quiet fishing, nines are more often chosen, which are more economical and quieter.
To improve driving performance and reduce yaw on the course, it is recommended to install transom plates or hydrofol on the engine's lower unit. This will also help to go faster on planing.
High speed steering requires habit, as the boat is prone to skidding the stern in a turn. Steering (if the tiller-console is installed) must be configured without backlashes. The engine screw must be matched step by step depending on the typical load so that the engine does not go to prohibitive speeds.
Comfort and interior equipment
The boat is equipped with removable seats that are attached to the sides. The design of the seats allows them to be used as paddles or equipment if removed. The aluminum surface inside is often left rough or covered with special non-slip compounds so that the legs do not slide over wet metal.
There are convenient seats for attachments, fishing rod holders can be attached to the sides, and a sonar platform can be attached to the nose, and many owners equip soft jars on their own, which greatly improves comfort during long-term transitions.
The absence of sophisticated electronics and plastic elements makes the interior utilitarian but reliable. There is nothing to break or soak. Simplicity of construction It allows you to easily wash the boat from a hose after fishing, removing mud and sand.
☑️ Pre-season checks
Comparison with analogues and modifications
There are several modifications on the market, differing in the length of the case or the presence of additional options. Ersh-2 It can have increased length and load capacity, making it more suitable for long expeditions, and when choosing between the base model and the extended version, it is worth assessing the frequency of use and the number of passengers.
Compared to PVC inflatable boats, the Ersh M benefits in strength and durability, but loses in weight and compact storage. The PVC boat can be blown away and put in the trunk, and the metal boat needs to be stored and transported somewhere on the trailer or top trunk, but the risk of puncturing the bottom of a snag or a sharp stone in the metal is not completely absent.
Comparison with the classic Kazanka shows Ersh’s advantage in ergonomics and modern design, sharp corners removed, improved nasal geometry, which reduces splashing, and modern alloys are lighter than Soviet duraluminium, which gives a payload gain.
⚠️ Warning: When buying a used boat, be sure to check the bottom for dents and deformations. straightened aluminum loses its strength and can burst under load at the most inopportune moment.
The choice between PVC and metal is the choice between mobility (PVC) and non-destructibility (metal). For rocky rivers and winter fishing, metal is out of competition.
Frequently Asked Questions (FAQ)
Do I need to register the boat Ersh M in GIMS?
Registration is required if the weight of the curbed vessel exceeds 200 kg or the engine power is more than 8 kW (about 10.88 hp). Since the weight of the Ersh M is about 75 kg, with an engine up to 5 hp registration may not be required, but laws may change, so it is better to clarify the current regulations.
What is the maximum wave size permissible for operation?
For boats of this class and bottom design, a wave up to 0.5-0.6 meters is considered safe. Output to open water with more excitement is dangerous because of the risk of overflowing and loss of stability of the flat bottom.
Can I leave my boat outside in winter?
Aluminum alloy is not afraid of frost, but it is recommended to keep the boat upside down so that snow and water do not accumulate inside. It is also worth removing removable elements and leaving the hatches open for ventilation, preventing condensation.
Which screw is better to choose for glides with two passengers?
For a full-load plane, a smaller screw, such as a 4-5 inch screw, depending on the diameter, would be the best option, allowing the engine to gain speed faster, overcoming water resistance.
In summary, it can be said that boat It's a smart choice for those who are looking for a balance between reliability, price and functionality, it's easy to care for, it forgives the mistakes of newcomers, and it's ready to serve for decades with care, and the right engine and safety rules will make your stay on the water comfortable and enjoyable.