Legendary Kazan 5M4 This aluminum boat, which was mass produced from 1972 to 1980, still plows the vastness of rivers and lakes, despite the age of many of the specimens. Kazan 5M4 It is critical for those planning to buy a used boat, transport it or upgrade it.
The body dimensions directly affect seaworthiness and stability on the go. Unlike earlier models of the 5 series, the fourth version received significant changes in the design aimed at improving safety. The increased height of the sides to 720 mm was the key difference between this model and its predecessors.This has significantly improved stability and reduced the risk of water flooding in chop.
Knowing the exact dimensions is not only necessary to assess the capacity, but also to select the right trailer. A standard passenger trailer often requires adjustment or specific styling to meet the road rules when transporting such cargo. Next, we will discuss all the parameters of the body in detail to give you a complete picture.
⚠️ Warning: When buying a used boat, be sure to check the geometry of the hull. Aluminum has the property of "tiring", and overloading could lead to deformation of the frames, which will change the real size and driving performance.
Basic overall dimensions of the body
Length Kazan 5M4 It's a standard 5-series figure that provides enough water line length to achieve good speed, but it's important to distinguish between the length on deck and the length on the waterline, which, when fully loaded, will be smaller, which affects the estimated speed.
The width of the hull on the midline is 1600 mm, which is considered optimal for boats of this class, providing a balance between stability in the parking lot and resistance to traffic. Width of Kazanka 5M4 It allows three adult passengers to comfortably accommodate, although passport capacity can vary depending on the year of issue and the specific configuration.
The height of the midfield is 720 mm, which is a significant advantage over many modern PVC or lighter metal counterparts. The high side creates a sense of security and makes you feel more confident when you go out into open water. The nose has a characteristic zygomatic shape that cuts the wave well.
- 📏 Length full: 4500 mm
- 📏 Maximum width: 1600 mm
- 📏 Height of board: 720 mm
- 📏 Bottom angle: 11.5 degrees
To understand the proportions accurately, it is worth considering that the shape of the stern also plays a role in the overall dimensions when installing the engine. The transom plate has standard dimensions that allow you to install engines with a capacity of up to 30 hp, although enthusiasts often put more powerful units, risking the strength of the transom.
Boat weight and load capacity
Question of weight Kazan 5M4 It is often crucial when choosing the method of delivery of the reservoir, the design is made of duraluminium alloys D16AT and D16AM, which provides the necessary strength, but adds weight. The total weight of the housing with equipment (deck, banks, steering) is about 190 kg without a motor.
The model has a capacity limit of 400 kg, which means you can take four medium-sized people or three passengers with a full set of fishing gear, and exceeding this limit leads to a decrease in the height of the board above the water and loss of stability, which is especially dangerous on the wave.
When calculating the weight for transport on a trailer, you need to consider the mass of the engine itself. If you use an old-style heavy two-stroke engine, the total weight on the breather can exceed 250 kg, which requires category E rights or careful registration of the trailer. Lightweight four-strokes make it much easier.
| Parameter | Meaning | Note |
|---|---|---|
| Hull mass | 190 kg | No motor or gear. |
| Load capacity | 400 kg | Including people and cargo |
| Passenger capacity | 4 people. | Passport. |
| Permissible power | 30 hp. | Recommended up to 25 hp |
⚠️ Warning: Do not attempt to artificially increase the load capacity by welding additional buoyancy cylinders without calculating. Disturbance of the centering can lead to the boat tipping over on flat water.
The weight distribution within the cockpit is also important. Kazan 5M4 It has built-in buoyancy knobs in the bow and stern, but the focus should be on accommodating passengers. Shifting all people on one side critically reduces the margin of stability.
For safe transportation on the roof of the car, remove all removable elements from the boat: cans, steering console and windshield, which will reduce sailing and the risk of damage to the elements during transportation.
Transportation and dimensions for trailer
Transportation Kazan 5M4 The dimensions of the boat allow you to stow it on a standard frame trailer, but the length of 4.5 meters requires careful attention to the rules of the road.
When loading on the roof of the car (which is possible only for very light modifications or using a crane beam), it is important to take into account the height of the car. Kazan 5M4 It's too heavy for two people to manually load onto the roof of a passenger car without any special devices, and it's usually carried in special boat trailers.
The width of the trailer must be adapted to the 1600 mm body. Too narrow trailer will create points of concentration of load on the cheekbones, which can lead to deformation of the skin during long driving over irregularities. Too wide will create problems with the size of the road.
- 🚗 Type of trailer: single-axle, spring
- 🚗 Railroad: 1400-1500 mm
- 🚗 Load length: not less than 3000 mm
- 🚗 Maximum axle load: up to 750 kg
Pay special attention to the fixation of the transom. Vibrations can unsettle the motor when it is not rigidly attached. It is recommended to use additional straps through the transom plate, but without excessive effort to avoid pushing aluminum.
Internal space and layout
Internal dimensions of the cockpit The 5M4 is designed with utilitarian use in mind; the deck area allows you to move freely when catching fish or mounting tackle; the presence of longitudinal cans (seats) is not always convenient, so many owners dismantle them to increase the usable volume.
The height from the floor to the timber allows you to sit comfortably on the bank even for large people. The dimensions of Kazanka 5M4 The inside of the hull is enough to accommodate an inflatable mattress for two people to sleep, making the boat popular with budget travelers. However, the lack of a full-fledged space requires the use of inflatable elements.
The bow is occupied by a sealed forepeak, which acts as a lock for storing things and ensures unsinkability, accessed through a hatch in the deck, the size of the hatch allows you to load fairly bulky items, but retrieving them back on the go can be difficult.
☑️ Preparing the boat for the season
The aft part is equipped with a recess (niche) for the installation of the outboard motor, which somewhat reduces the usable deck area, but protects the engine from damage and reduces noise. In the side pockets, there are often additional niches for trifles, the size of which varies from series to series.
Drawings and geometric features
For those planning repairs or restorations Kazan 5M4The body has a characteristic zygomatic contours with a sharp transition from the side to the bottom, the angle of keeliness on the midfield is 11.5 degrees, which provides a good swelling on the wave, but creates a tangible shaking on the oncoming excitement.
The bottom skin is 2 mm thick and the sides and decks are 1.6 mm thick. Spangouts are made of aluminum profile, which gives the structure rigidity. It is important to use materials of the same brand and thickness when restoring, otherwise galvanic corrosion or strength loss will occur.
The riveting seams run along the entire hull, and when repairing, you need to accurately reproduce the riveting pitch, which is usually 20-30 mm depending on the node, and if you change the sheets of plating, the geometry can cause the boat to scour the course or become worse at planing.
Where can I find the original drawings?
Original drawings of Kazanka 5M4 can be found in the archives of the magazine "Boats and Yachts" for the 70s or in specialized forums of water engines. Look for files labeled "project 5M4" for accurate measurements of the frames.
⚠️ Warning: When welding or riveting aluminum, strictly observe the technology. Heating duraluminum above 250 degrees in the seam zone leads to loss of strength (annealing), which makes the body fragile and dangerous for operation.
Comparison with modern analogues
Comparative. Kazanka 5M4 With modern aluminum boats, you can see the difference in design approaches, and modern models often have more complex contours, which improves performance but increases the cost of production. Kazan 5M4 It benefits from simplicity and repairability.
Modern duraluminiums may be less weighted at the same size by new alloys and stamping techniques, but the safety margin of Soviet duraluminium is often superior to thin-walled imported boats designed for calm water. The old school is often more reliable in the harsh conditions of the north.
The dimensions of the cockpit in new models are often optimized for specific tasks (fishing, cruising), while Kazanka remains a versatile soldier. The ability to install an awning, windshield and console makes it an excellent base project for DIY tuning.
- ⚖️ Durability: higher at Kazanka (metal reserve)
- ⚖️ Driving qualities: better in modern analogues
- ⚖️ Repairability: higher in Kazanka
- ⚖️ Price of ownership: lower at Kazanka
When choosing between renovating a classic and buying a new one, weigh your needs. If you want a simple, "unkillable" fishing boat in the delta or in the north, the size and construction of the boat are the most important. Kazan 5M4 It's still relevant.
The Kazan 5M4 is a choice for maintainability and simplicity, rather than maximum speed or comfort, and has been measured over decades of use.
Frequently Asked Questions (FAQ)
Can the engine power on Kazanka 5M4 be increased above 30 hp?
Technically, it's possible to install a motor that's more powerful than 30 hp, and many people do. But the transom and the contours of the body are designed for less loads. Excessive power leads to the risk of transom failure, loss of controllability and increased body load when hit by a wave. The safe limit is 25-30 hp.
What is the real weight of Kazan 5M4 with equipment?
Weight empty body is about 190 kg With the installed engine (30-40 kg), tank, anchor and minimum set of equipment weight on the trailer will be about 250-260 kg. This is important to consider when choosing a tractor and brake system of the trailer.
Is 5M4 suitable for fishing?
This boat is not designed for the high seas because of its low altitude relative to the wave and lack of a self-draining cockpit, but it is quite suitable for fishing in closed bays, estuaries and coastal areas in calm weather, especially given its stability.
Where to find the sizes for the manufacture of awning on Kazan 5M4?
The exact dimensions of the awning frame depend on the height of the arcs and the presence of the windshield. The standard height of the arcs above the deck is 1200-1400 mm. It is recommended to first assemble the frame from pipes, try it on the boat, and only then sew the awning, adding attachment tolerances.