The legendary Kazanka has been plowing the expanses of domestic reservoirs for more than half a century, remaining one of the most massive and recognizable floating craft. Kazanka MThe silk engine, which emerged in the mid-60s, was an evolutionary development of the base version, with a number of design improvements to improve seaworthiness, but it was this project that generated one of the most fierce discussions among water engines: should sidewear be fitted, the so-called bules?
For a beginner choosing his first metal case, this question may seem secondary, but experienced owners know: this decision directly depends on the choice of the first metal case. crew safety In this article, we will examine the technical features of the model, analyze the impact of boules on stability, and determine who really needs this tuning and who should abandon it.
Design features of the model M
The basis of the boat design Kazanka M It's a D16AT duraluminium alloy that provides high strength with relatively little weight. It has flat-wheeled contours with a bow angle of about 10 degrees, which allows you to go smoothly even with low-power engines. The most important difference from the base model was to increase the length of the body to 4.5 meters and expand the nose, which has a positive effect on the sleeving of the engine. cockpit capacity.
The trunk plate is reinforced and designed for outboard motors up to 25 hp, although many owners risk installing more powerful units. The bottom is reinforced by three longitudinal redans that facilitate the entry into planing mode and improve the course stability. However, it was the shape of the body that created the need for improvements, since the initial stability left much to be desired in lateral excitement.
Inside the cockpit, there are knobs to store things that serve as seats at the same time, and the design includes the possibility of installing a windscreen and awning, which makes the boat a versatile tool for fishing and recreation. The key element of safety is a sealed forepicThis water, even when fully filled with water, ensures the buoyancy of the boat.
- 🚤 The material of the case: duraluminium D16AT with high corrosion resistance.
- ⚓ Cargo capacity: up to 400 kg, which allows you to take on board 4-5 people.
- 🌊 The permissible height of the wave: up to 0.6 meters (without boules) and up to 0.75 meters (with boules).
- 🔩 Weight of the body: about 145 kg without motor and equipment.
The problem of stability and the role of boules
The main Achilles heel of all the early Kazanka versions was not stable enough at low speeds and in parking, the narrow body easily resonated with the side wave, which could lead to dangerous rolling and even rollover, and it was to solve this problem that engineers and craftsmen began to introduce side-stuffingOr booly.
⚠️ Warning: Installing boules changes the center of gravity and sailing of the boat. Incorrectly calculated volume or height of the installation can lead to reduced speed and deterioration of handling at full speed.
Booles are sealed compartments attached to the sides in the bow and middle of the hull, and their primary function is to create additional support area when rolling. When the boat tilts, one of the booleans sinks into the water, creating a powerful restorative force that returns the vessel to a horizontal position, which is critical when fishermen land or when passengers are suddenly moved inside the cockpit.
There are two main approaches to solving the problem of stability: factory buls, which were installed on some modifications, and homemade versions, which owners boil from aluminum or make from foam and fiberglass. Factory solutions usually fit more harmoniously into the contours, while “kolkhoz” tuning can significantly spoil the appearance and aerodynamics.
When making boules yourself, use only high-density foam (PSB-C) and epoxy resin. Polystyrene can dissolve from contact with gasoline or certain types of glue.
Technical specifications: M vs. MMM
To understand the effectiveness of boules, you need to compare the basic model. Kazanka M modified Kazankah MMThe MM was designed to be safe, and it not only had the buli, but also the altered contours of the bow, which together had a significant seaworthiness gain.
The table below shows a comparison of key parameters, showing how design changes affect performance. Pay attention to the permissible wave height and passenger capacity, these parameters are directly dependent on the presence of sidewear.
| Parameter | Kazanka M (no boules) | Kazanka MM (with boules) | Units |
|---|---|---|---|
| Longest length | 4500 | 4500 | mm |
| largest width | 1600 | 1600 (with buls 2100) | mm |
| Height of board | 720 | 720 | mm |
| Load capacity | 400 | 400 | kilogram |
| Permissible engine power | 25 | 25 | hp |
And as you can see from the data, the overall width of the bulae increases by more than half a meter, which significantly affects the transportation of the boat on the trailer. But this same increase in width allows you to feel more confident on the water. speed The MM may be slightly lower due to increased water resistance and weight.
The effect of the boules on driving performance
Installing boules is always a trade-off between safety and speed: the extra weight of the structure (even hollow aluminum bulls weigh a lot) and the increased surface area of the wetted surface lead to a decrease in maximum speed. In calm water, the difference can be 3-5 km / h, which is not critical for a pleasure boat, but for an athlete is noticeable.
But the excitement changes, and the Boolean boat gets its nose down less and passes through the chop (short wave) softer. Boolean boats work as extra sponsors to stabilize yaw, and then they're fully glided, with the boat resting on the water only at the back of the bottom and the trench, the impact of the Boolean boats is minimal unless they're buried too deep.
It's been argued that bullies create parasitic turbulence and splashes that can throw passengers around. This is only true for misdesigned allotments that are sharp edges or inharmoniously shaped. Properly executed booleans that repeat the contours of the body create little or no splash and can even improve hydrodynamics by working as guides.
The secret of the perfect shape of boules
The optimal shape of boules for Kazanka M is a drop-shaped cross-section with a smooth transition to the side. The upper edge should be rounded so that when rolling, the water flows softly without creating a sharp braking. The angle of attack of the lower surface should coincide with the angle of keeliness of the bottom.
Tuning and modernization of the body
Kazanok's owners are inventive, and decades of operation have created a culture of tuning these boats. cross-plateThey also help you get more plane and better handling when you're going against the wave, and they often change the regular seats to more ergonomic seats with a soft back.
The emphasis is on protecting the bottom, and the dural is a strong metal, but when it comes to shallow waters or rocky beaches, it can get damaged, and many people put rubber or polyethylene protective bands on the bottom and cheekbones, which also reduces the noise from the wave, making the trip more comfortable.
Electrification is another popular option, with a full battery, navigation lights, sonar and GPS navigation system that turns a simple piece of hardware into a modern fishing boat, and it's important to make sure that you can wiring properly, using corrugated corrugated rods and waterproof junctions, to avoid short circuits in high humidity.
- 🔋 Installation of an additional anchor box in the nose for convenience.
- 💡 Installation of LED lighting cockpit for night fishing.
- 🎣 Installation of holders for rods and brackets for trolling-motor.
- 🛡️ Covering internal surfaces with anticorrosive compositions.
Operation and care of aluminium
The duraluminium that's made of Kazanka MDespite the presence of an oxide film that protects the metal from corrosion, an aggressive environment (especially salt water or contaminated industrial effluent) can trigger the oxidation process. Regular washing with fresh water after each trip is a mandatory rule for a long life of the case.
If you keep the boat on the water during the season, you need to monitor the condition of the underwater part. Pay attention to the appearance of whitish plaque or paint bubbles, these are the first signs of corrosion. VL-023 or AK-194.
⚠️ Warning: Never use copper-containing antifouling paints for aluminum! Aluminum contact with copper in electrolyte (water) causes instant and deep electrochemical corrosion.
Winter storage also has its own peculiarities: the boat is better kept upside down under a canopy or indoors to prevent precipitation and ultraviolet radiation. If this is not possible, and the boat is on a keel, be sure to cover it with an awning, providing ventilation so that condensation does not accumulate inside.
☑️ Preparing the boat for winter
The final comparison: pros and cons
In summary, it can be said that Kazanka M Boolean and boolean are essentially two different boats, lighter, faster and more economical, but require a high level of skill and caution from the steering wheel, especially in windy weather, a choice for experienced water-engineers who appreciate dynamics.
The boules option is a family-run safety boat, which forgives misallocation, is resilient when boarding and disembarking, is more confident in keeping the wave, and for most fishing and leisure enthusiasts, losing speed is an acceptable price to pay for peace of mind and confidence in the future.
The choice is left to the owner, but statistics show that most Kazankas eventually grow boulders. This popular vote speaks for itself: safety on the water is paramount. If you plan to use a boat for a holiday with children or night fishing, bullies become not just an option, but a necessity.
Booles on Kazanka M is not just tuning for beauty, but a vital modification that increases stability and reduces the risk of tipping over with lateral excitement.
Do I need to register Kazanka M with boules in GIMS?
Yes, the boat is subject to registration if its mass in running order exceeds 200 kg or engine power more than 8 kW (about 10.8 hp). Installation of boules increases the weight, but usually Kazanka M even with boules and engine up to 25 hp can remain within the limits that do not require the rights of category "B", but registration of the vessel itself is mandatory if the weight exceeds 200 kg.
What is the maximum motor to be put on Kazanka M?
The manufacturer recommended power up to 25 hp However, the reinforced transom allows you to install engines up to 30-35 hp, subject to experience in driving. Excess this power can lead to the destruction of the transom or loss of controllability at high speed, since the length of the body limits the speed potential.
Can I make a bule of foam on my own?
Yes, it's a popular and budget-friendly way, and the frame is boiled from an aluminum corner or strip, the foam is stuffed tightly inside, then it's all sheathed with fiberglass on epoxy, and the main thing is to ensure that the coating is completely tight, because the foam can absorb fuel and lose properties.
Does the boat slow down the speed of the boat?
If properly executed and set to level with the keel or higher, the speed loss is no more than 5-7%. If the boules are buried below the bottom line, the losses can reach 10-15% due to increased resistance.