Domestically produced metal small craft have traditionally been in high demand among fishermen and hunters who value reliability and maintainability. Among the many models, the Vyatka Profi 38, which represents the evolution of the classic Kanaks with improved seaworthiness and comfort, has become a standard for those who need a universal vessel for family walks, fishing on large water bodies and overcoming excitement.
The main feature of the design is the combination of lightweight aluminum alloy with a well-designed body geometry, which allows you to develop decent speeds even with medium-power engines. Unlike cheap analogues, it uses riveting and welding technology, which ensures that seams are tight even when used for long periods in an aggressive environment, and many owners choose this model for the possibility of self-maintenance and modernization.
In this article, we will discuss in detail the technical parameters, the features of the assembly yourself from the drawings, as well as the nuances of tuning and operation. You will learn why this project has been relevant for many years and how to properly prepare the vessel for the first launch.
Technical specifications and design features
The basis of the reliability of the Vyatka Profi 38 is the use of aviation aluminum alloy, which has a high corrosion resistance. the hull is 3.8 meters long and 1.5 meters wide, which makes it a medium-sized motorcycle capable of seating up to four people. Load capacity The aircraft is about 400-500 kg, which allows you to take on board a significant amount of equipment, fuel and trophies.
The hull contours are designed to be glided, requiring a 5-6 hp engine to go into mode. However, 9.9 hp is considered optimal, allowing you to feel confident on the wave. The bottom is equipped with longitudinal redans that improve course stability and reduce yaw on a straight course. Vyatka Profi 38 has developed cheekbones that extinguish the blows against the wave, which makes swimming more comfortable compared to flat-bottomed counterparts.
An important element of security is the presence of built-in floating-block Styrofoam in the nose and under the floorboards, and even when fully filled with water, the cockpit will stay afloat, the bulkheads are designed to withstand the pressure of the water when it rolls over, and the tightness of the compartments is a critical parameter that must be checked annually before navigation.
It is worth noting that the empty body weighs around 130-140 kg, which requires a trailer or reliable partners to be launched manually. Aluminum used in manufacturing does not require painting, as the oxide film itself protects the metal, but many owners prefer to apply additional protective coatings. Leaf thickness varies from 2 mm on the sides to 3-4 mm on the most loaded areas of the bottom and transom.
Drawings and assembly DIY
The model's popularity is largely due to the availability of drawings, which allows enthusiasts to build boats themselves. Vyatka Profi 38 Designed to be accessible and easy to handle in garage conditions, you will need a sheet-bending machine (or access to it), an aluminum welder (argon), and a set of metalworking tools to assemble.
The process starts with cutting sheets according to sweeping, and it's critical to keep the angles of the fold, because the geometry of the lifeboat depends on it, and welding must be done by an experienced welder, because aluminum requires specific skills and oxidation protection. A key feature of the assembly is the use of a double row of rivets at the joints of the skin sheets to increase reliability.
The Secrets of Working with Aluminum
When welding aluminum, be sure to use copper or steel linings under the seam to remove heat and prevent burns. Also, the surface should be cleaned with a stainless steel brush immediately before cooking.
The frame is assembled and the frame is installed on a slipway or flat surface. After the skin is installed, a transom is welded, which must be strictly perpendicular to the diametrical plane. Errors at this stage will lead to a yaw of the boat on the move. Below is a table of basic dimensions to control the geometry of the hull during the assembly process.
| Parameter | Meaning | Admission |
|---|---|---|
| Full length | 3800 mm | ± 10 mm |
| maximum width | 1500 mm | ± 5 mm |
| Height of board | 450 mm | ± 5 mm |
| Angle of keeliness | 8-10 degrees. | ±1 deg. |
☑️ Control of hull assembly
Operation and seaworthiness
On the water, the Vyatka Profi 38 is predictable and stable, and thanks to its elongated stern and cheekbones, it rises well and gently descends from the ridge, but it is worth remembering that it is still an open boat, and it is possible to swamp the wave when moving perpendicular to the wind. Seaworthiness It is considered good for reservoirs and large lakes, but entering the open sea requires experience and caution.
The handling is directly dependent on the remote or remote control system. When installing a 9.9 hp engine, the boat goes to plane with two passengers in 10-12 seconds. The maximum speed can reach 30-35 km / h, but the cruising speed is considered 20-25 km / h for fuel and engine life. Aerodynamics The cockpit makes you feel comfortable even at high speeds if you sit properly.
⚠️ Attention: When driving at high speeds with full load, the center of gravity shifts. Do not allow sudden movements of passengers, especially in the area of the transom, to avoid loss of stability.
In the bayonet wave, the boat behaves a bit rigid, characteristic of aluminum hulls with low keeliness, but the buoyancy margin allows you to confidently hold the impact. It is important to distribute the weight correctly: heavy things and passengers are better placed closer to the center of the diameter and on the bottom. The fuel tank should also be mounted securely, preferably in a special hazel or under the seat.
Tuning and modernization of the boat
Owners often aim to improve the basic equipment by turning a utilitarian vessel into a comfortable boat. windshield And this not only protects against splashes, but also allows the boat to be used in colder weather, and the awnings are often removable so as not to increase the sailing speed when the wind is calm.
The second popular development is the installation of a control console, which allows you to fix the dashboard, sonar and navigator, freeing the hands of the steering wheel. The console also serves as an additional element of stiffness and protection of the legs from the oncoming air flow. Some craftsmen integrate small boxes and mounts for glasses into the console.
To improve comfort on long transitions, install inflatable or soft seats on top of a rigid aluminum floor, which will reduce vibration and noise transmitted through the body.
Modernization often involves the chassis. hydrofoil The engine allows faster planing and improved handling, and the installation of additional anchor boxes in the nose eliminates confusion with the sphalins, and the popular labeling of the bottom with vibration insulation materials, which significantly reduces noise from the engine and wave shocks.
Maintenance and storage
Aluminum body does not require such careful care as steel, but there are nuances. After each landing, the boat should be rinsed with fresh water, especially if the operation was carried out in salt water or contaminated water bodies. Pay special attention to the places of contact of heterogeneous metals (for example, transom fastener), where possible. electrochemical.
Keeping the boat Vyatka Profi 38 is best upside down on a flat surface or on special kilblocks, which will prevent the hull from deforming under its own weight and protect the cockpit from accumulation of debris and precipitation. If storage is in winter, make sure that there is no water left inside, which, when frozen, can damage the welds.
⚠️ Warning: Do not use abrasive powders and hard brushes to clean the aluminum case, which can damage the oxide film. Use only soft rags and special aluminum products.
Check the rivet joints regularly, and if you notice any leaks or "sweating" of the joints, you should dry them and, if necessary, smear them with a sealant or replace the fastener. Visual examination It is better to carry out bottoms for dents and scratches at each ascent to the shore.
Comparison with analogues and final conclusions
In the metal boat market, Vyatka Profi 38 has competitors such as Kazanka-M or Ob, but the model in question benefits from more modern contours and greater width, which has a positive effect on stability. Unlike the Ob, the internal volume is more rationally used, allowing more equipment to be placed without compromising crew comfort.
Compared to similarly sized PVC analogs, the metal loses weight and dimensions when assembled, but gains in durability and safety. PVC can be damaged by a knot or stone, whereas the aluminum board will withstand severe mechanical stress. metal boat They are made by those who value reliability and do not plan to carry the boat often.
The Profi 38 is a “golden mean” between heavy Soviet boats and modern light models, ideal for fishing and resting on large reservoirs.
In conclusion, it has met the expectations of many aquatics, and the combination of affordable prices (especially the DIY option), maintainability and good driving performance make it a bestseller in its class, and if operated properly and maintained on time, it will last decades, even if inherited.
Which engine is best for the 38th Pro?
The best choice is a two-stroke or four-stroke engine with a 9.9 hp long leg, enough for a confident planing with 2-3 passengers, you can use 5-6 hp, but the plane will be possible only with one person on board.
Should I paint an aluminum boat?
You don't have to paint aluminum because the oxide film protects it from corrosion, but painting with epoxy soils and aluminum paints (such as Interlac) greatly improves the appearance and makes it easier to clean from dirt and stain.
How many people can safely carry a boat?
Passport capacity is usually 4 people, but taking into account equipment, fuel and engine, 2-3 adults feel most comfortable on board. Excessing the carrying capacity reduces the buoyancy reserve and the height of the board above the water.