Legendary Oka-4 The shipbuilding remains one of the most recognizable symbols of domestic shipbuilding, available to a wide range of consumers, and this flat-bottomed aluminum-magnesium alloy boat has been plowing the expanses of rivers and lakes for several decades, proving itself as a reliable, albeit not without disadvantages, option for fishing and recreation. Metallic case It ensures durability, and its simple design allows repairs even in the field.

But despite its popularity, many potential owners are still confused about the modifications and real-world features of this model. dimensionsHow many people does it stand in practice, not just on paper? The answers to these questions will help you know if this is the right one for you. aluminum-boat for your tasks.

In this article, we will take a look at all the technical details, from the thickness of the bottom to the nuances of handling on the wave, you will learn why this boat received the nickname β€œbucket” and how to properly operate it to avoid trouble. Technical parameters Oki-4s require careful consideration before buying.

History of creation and features of the construction of the body

Production of boat Oka-4 It was built at the Kuibyshev Aviation Plant, which initially set high standards for the quality of the materials used. The body is made of the AMG5 aircraft alloy, which has high corrosion resistance and strength. aluminum-magnesium alloy The boat can last for decades without requiring complex maintenance, like wood or fiberglass counterparts.

The boat is structurally a flat-bottom with sharp cheekbones that go into the sides. This bottom geometry provides excellent parking stability, which is critical for fishing. However, this same feature dictates its limitations: at high speed or in strong side winds, the boat can be heavily demolished, and the entrance to the wave is accompanied by hard blows. Flat bottom It is a compromise between capacity and performance.

⚠️ Warning: AMG5 aluminum alloy is sensitive to electrochemical corrosion when in contact with other metals in salt water. Do not install steel or copper elements on the boat without insulation if you plan to go out in river estuaries.

The boats have developed shelter bars that protect the structure from impacts on the piers or ice. In the bow there is a kunduk, which in various versions can be sealed or open. Shell design It is simplified to reduce cost, which makes it affordable, but requires the owner to understand the physics of the movement of flat-bottomed vessels.

Why is the boat called a "bucket"?

Overall dimensions and weight parameters

One of the key factors in the model’s popularity is its compact size, which allows transporting a boat on the roof of a passenger car or in a trailer. The standard length of the hull is 4000 mm, which makes it a class of small vessels that do not require registration with GIMS (when using a motor up to 10 hp and meeting other criteria relevant at the time of purchase), the width of the midwidth is 1500 mm, which provides acceptable stability.

The weight of an empty boat varies depending on the year of manufacture and configuration, but on average it is about 130-140 kg. This is quite a lot for one person, so loading and launching often requires the help of a partner or the use of a winch. Overall height The plane on the midfield is 400 mm, which is an average indicator that provides protection against splashes, but does not save from overflowing on a large wave.