Legendary Kazan 5M4 For decades, it has been one of the most popular watercraft in Russia and the CIS countries, replacing the Kazanka-M with an improved body, a more spacious cockpit and the ability to install a powerful outboard motor, and the combination of affordable prices and time-tested reliability makes it popular among avid fishermen and family fans on the water.
Many owners choose this option because of its versatility: it feels great both on the calm surface of reservoirs and on the wave of medium size. However, before buying a used copy or a new product, it is extremely important to study everything in detail. technicalIn this article, we will discuss the real specifications, design features and nuances of operation.
It should be noted immediately that aluminum It requires a different approach to service than fiberglass, and understanding the physics of metal on the water will help you extend the life of the boat and ensure the safety of the crew, and let's dive into the details so you can make an informed decision.
Main technical specifications and dimensions
The fundamental parameter of any boat is its size, which directly affect the driving qualities. Kazan 5M4 The vessel is 4,500 mm long and 1,600 mm wide, providing sufficient stability to accommodate up to five people, and has a 720 mm midship height, a compromise between spray protection and wind sailing.
Special attention deserves loading capacity The model, which is officially declared to be 400 kg, includes the weight of passengers, equipment, fuel and the engine itself, and practice shows that for a comfortable and safe swim, it is better not to exceed the load of 350 kg, leaving a margin in case of water entering or dynamic loads on the wave.
The weight of the boat itself, without the engine and equipment, is about 145 kg (depending on the year of manufacture and configuration), which is quite a significant mass, so transporting on the roof of a passenger car will require a good physical shape or a special trailer.
| Parameter | Meaning | Units of measurement |
|---|---|---|
| Longest length | 4500 | mm |
| largest width | 1600 | mm |
| Height of board | 720 | mm |
| Passenger capacity | 4+1 | man. |
| Maximum engine power | 25 (30) | hp |
It is important to note that the dimensions transom They allow you to install engines up to 25 hp, although many owners risk installing 30-horsepower units. Tran is strengthened, but excessive traction can lead to deformation of the aft part during prolonged operation at high speeds.
⚠️ Warning: When installing a motor with a capacity of more than 25 hp, be sure to check the condition of the transom fastening bolts and the inclination angle of the lower unit, since vibrations can weaken the structure faster than the estimated period.
Shell design and materials
The boat's hull is made of aluminum-magnesium alloy AMG5M, which is highly corrosion-resistant and durable. The riveting technology used in manufacturing ensures that seams are tight, but may need to be checked over time. The bottom and sides vary in thickness from 2 mm to 3 mm in the most loaded nodes, allowing you to confidently walk through shallow water without fear of light impacts on stones.
One of the key features of the model is the presence of boulder The boat is less inclined to roll when passengers move inside the cockpit, but the presence of these elements increases sailing and requires careful control in lateral winds.
The bottom has a moderate keeliness, which allows speeds of up to 40 km / h when installing a powerful engine. In calm water, the stroke is mild, but on a large wave you can see the slapping characteristic of flat-keeled contours. To reduce noise and vibration, many owners resort to additional noiseproofing floor.
Alloy production technology
Alloy AMg5M is subjected to special heat treatment, which increases its plasticity and reduces the risk of cracking in riveting areas when hitting a wave.
The life of an aluminum case is virtually unlimited when properly maintained. Metal does not rot, fade or require painting if you are satisfied with a natural silver color. However, electrochemical corrosion when in contact with other metals (for example, when stainless bolts are installed in aluminum holes without insulation) can be a serious problem.
⚠️ Warning: Never wash the boat with aggressive household chemicals or chlorine-containing products, as this can destroy the oxide film on the aluminum surface.
Capacity and layout of the cockpit
Interior space The Kazan 5M4 is designed to accommodate four passengers on cans and one on the stern, next to the engine. The layout is ergonomic enough for its class: the central bank is often used as a seat for the steering wheel, and the nose is left free to accommodate gear or cargo.
The locks are provided for storage, but may not be large enough for long expeditions, and many fishermen upgrade the interior by installing additional boxes or fixed platforms.
The convenience of boarding and disembarking provides a wide enough cockpit, but high boards can make it difficult to enter the boat from a low shore or an unequipped pier, so having a ladder or stepladder will be useful. When fully loaded by people, the waterline lowers, and the board becomes dangerously close to the water, which requires increased caution.
Performance and driving data
On the water. Kazan 5M4 With a 15-20 hp engine installed, the boat is glides with two passengers on board, and with a higher load, either weight reduction or engine power increase will be required to enter planing mode.
Fuel consumption is directly dependent on engine and loading modes. On average, a 20-hp planing engine consumes about 6-8 liters per hour. It's an economical measure that allows you to travel long distances without frequent refueling. Many people install additional fuel tanks in the nose for long-distance crossings.
The maneuverability of the vessel is estimated as average. Due to the presence of boules and relatively flat bottom, the radius of circulation can be large, especially at low speeds. However, for fishing and cruising, the range and stability are more important than the sharpness of turns. In the wave, the boat holds its course well, but in lateral turbulence, you can experience a leap.
To improve the course stability on the wave, try to lower the engine's lower unit a little or install transom plates, if the design allows.
Transport and storage
Issue of transport Kazan 5M4 It's particularly acute because of its weight of 145 kg. It's possible to run it on the water from the flat shore together, but loading it on the roof of the car will require the use of special guides or a crane-beam. The optimal solution for frequent use is to purchase a light trailer.
When stored outdoors, aluminum heats up in the sun, which can be unpleasant when landing, but quickly passes. In winter, the boat is better stored in an inverted form to prevent rain and snow from entering the interior, although the material is already frostproof.