Choosing a swimming vessel for fishing or resting on the water always involves finding a balance between cost, reliability and functionality. Boat 2mThe bucket, which has become a kind of budget-class standard in Russia, is an upgraded version of the legendary Obi, designed to meet modern requirements for safety and comfort on the water.
Why is this particular model attracting the attention of thousands of water-engines? The answer lies in the combination of simplicity and practicality. Aluminum case The boat’s durability is enhanced, and the cockpit’s area allows a company of three to four people with a full set of equipment to be accommodated, and the boat’s specifications make it feel confident both in a calm reservoir and on a moderate river.
In this review, we will analyze in detail all the parameters of the vessel, from the overall dimensions to the nuances of the engine installation. You will learn the real speed indicators, fuel consumption in different modes and the features of the operation of the aluminum hull in Russian conditions. Understanding these data will help you make an informed decision about the purchase or proper use of an existing boat.
Overall dimensions and weight parameters of the body
The basis of any technical specifications is the physical dimensions of the boat. Boat Ob 2m The boat is 4,100 mm long, which makes it a small motorboat, with a mid-width of 1510 mm and a height of 450 mm, and is designed to provide sufficient stability, allowing fishermen to safely navigate the cockpit even when standing, which is critical when catching large fish or mounting tackles.
The weight of the empty hull without engine, equipment and fuel is about 140 kg. This value is a compromise: on the one hand, the metal is stronger than PVC, on the other - requires a more powerful trailer or a launch from the shore. The transportability of the vessel is possible on a standard passenger trailer, but it should be borne in mind that when assembled with the engine, the total weight can exceed 250 kg, which requires the category "E" in the driver's license or registration of the trailer as a cargo one.
The interior of the cockpit is ergonomically organized, and the nose is occupied by a handduke, which serves not only to store things, but also serves as an additional sealed compartment, which increases insinkability. The working area of the cockpit is about 4.5 square meters.This is a great example for a four-meter boat.
- 📏 Length full: 4100 mm
- 📏 Maximum width: 1510 mm
- 📏 Height of board: 450 mm
- ⚖️ Body weight: 140 kg
Capacity and load capacity of the vessel
One of the key questions when choosing a boat is the number of passengers it can safely take on board. rated carrying capacity of the model is 400 kg. This means that the boat is able to carry the weight of four medium-sized people (75 kg each) plus the necessary supply of equipment, anchor and fuel.
Full loading. draft It's increasing, which can affect performance and safety, especially when you're on a wave, and designers have built up a buoyancy margin, with the bow and aft airtight compartments filled with polyurethane foam, and even if you're completely flooded with the cockpit, the boat will stay afloat, keeping the crew on the surface.
It's important to consider not only the weight of the people, but also the mass of the equipment installed: a heavy motor, a full tank of gasoline, a sonar, attachments - all this eats away at the payload. Recommended operating load for a comfortable and safe voyage should not exceed 300-320 kg, which leaves a reserve in case of water or sudden movement of passengers.
⚠️ Warning: Exceeding the maximum load capacity even by 10-15% sharply reduces the height of the free board above the water, making the boat vulnerable to flooding with a wave even with a slight excitement.
specifications of the case and materials used
The boat's hull is made of aluminum-magnesium alloy AMg5M. This material is not chosen by chance: it has high corrosion resistance, which is extremely important for use in fresh and low-salt water. Unlike conventional steel, aluminum does not rust, and magnesium in the alloy gives it the necessary strength and plasticity, preventing the formation of cracks when hitting rocks or ice.
The bottom is 2 mm thick and the sides and decks 1.5 mm thick, a design that balances strength and weight. The bottom is keeled with a 10-degree keel angle, which allows the boat to better cut the wave than the flat-bottoms, allowing for a gentler ride. However, at high speed, when you are very excited, you can see the effect of "slapping" your nose against the water.
The connection of the sheets of the skin is made using argon welding, which guarantees the tightness of the seams. transom plate The aluminium surface is usually not painted, as the oxide film protects the metal, but for aesthetics and additional protection, anodizing or painting with special soils is often used.
Features of welds
Welds on Ob 2m boats are automatically welded to ensure their uniformity, however, after each season it is recommended to inspect them for microcracks, especially in the places where the cans are attached and at the transom, since the vibration of the engine creates a constant dynamic load.
Engine power and speed specifications
The technical specifications of the boat Ob 2m directly depend on the installed engine. The recommended power outboard motor is from 5 to 15 horsepower. With a motor of 5-6 hp, the boat will confidently plane with one or two passengers, developing a speed of about 20-22 km / h. This is an economical option for quiet fishing.
Installing a 9.9-15 hp engine changes the behavior of the vessel. maximum speed It can reach 35-40 km/h with one driver. With a full load (3-4 people), the speed drops to 25-28 km/h, but the boat confidently goes into planing. It is important to choose the right propeller: for heavy loads you need a screw with less pitch, for high-speed walks you need a screw with more.
Fuel consumption is an important economic indicator: when driving in planing mode with a 9.9 hp engine, gasoline consumption is approximately 4-5 liters per hour. On an economical run (about 15-18 km / h), this figure decreases to 2-3 liters. The exact figures depend on the state of the bottom (the presence of fouling), loading and weather conditions.
☑️ Checking before getting on the water
Below is a table showing the dependence of speed on engine power and load (average data):
| Engine power (hp) | Download (person) | Speed (km/h) | Mode of traffic |
|---|---|---|---|
| 5.0 | 1-2 | 18-20 | planing |
| 9.9 | 1-2 | 32-35 | planing |
| 9.9 | 3-4 | 24-26 | planing |
| 15.0 | 1-2 | 38-40 | Full gas. |
Installation and equipment options
The basic equipment of the boat usually includes the hull itself, two removable cans (seats) and a bow bow. However, for full operation, additional equipment is often required. windshieldIt significantly increases comfort when driving at speed, protecting against oncoming airflow and splashes.
Also popular are the tiller extension cords, which allow you to control the engine while sitting on the front bank or on the side, which is more convenient for fishing. Installation of sonars and navigators requires the installation of brackets on the tray or on the side. Some models can be equipped with sun and rain awnings, as well as running awnings for overnight stays on the water.
A boat of this size requires an anchor weighing at least 4-5 kg (admiralty or cat paws), as well as an anchor shaft with a length exceeding the maximum depth in the navigation area by 20-30%.
To protect the feet from cold and moisture on the aluminium floor of the Ob 2m boat, it is recommended to lay wooden trapikas or rubber-based carpeting. Aluminum cools quickly from water, and direct contact with the metal can be uncomfortable in cool weather.
Operational features and maintenance
Aluminum boats require less maintenance than wooden or steel boats, but maintenance is not neglected. The main enemy of aluminum is galvanic corrosion, which occurs when heterogeneous metals come into contact in the electrolyte (water). cross-plate and fasteners must be made of stainless materials or have a protective coating.
After every fishing trip, especially in salt water, the boat needs to be rinsed with fresh water, which flushes salt and dirt that can damage the oxide film, and it is better to keep the vessel upside down under the canopy or indoors to avoid accumulation of precipitation and exposure to ultraviolet on seals and plastic.
Periodically, welds and rivets should be checked (if any are in the attachment areas); any leak, even the minimum, should be eliminated immediately. For minor repairs of scratches and chips, there are special repair kits for aluminum boats, allowing you to restore the protective layer without complex equipment.
⚠️ Warning: When washing a boat with a kerkerkerker, do not direct a jet of hot water or steam under high pressure to the welded seams and places of sticking of labels / stickers, this can violate the tightness or damage the protective coating.
The durability of the Ob 2m boat is directly dependent on regular freshwater washing after use and proper storage in the off-season, which prevents corrosion and prolongs the life of the aluminum alloy.
Frequently Asked Questions (FAQ)
Is it possible to go to a large reservoir or Ladoga on a boat Ob 2m?
The boat has a keeled bottom, which helps to keep the course, but the low side (45 cm) makes it vulnerable to flooding when turbulent above 0.5 meters. It is recommended not to move far from the shore and always carry a scoop and life jackets.
What is the maximum weight of the motor can be put on a transom?
The manufacturer recommends motors up to 15 hp Installation of a more powerful motor (for example, 20 hp) is technically possible, but this creates excessive pressure on the transom and stern, which can lead to deformation of the hull or reduced safety.
Do I need to register this boat with GIMS?
Under current regulations, boats weighing more than 200 kg (in running order) or with an engine exceeding 8 hp (10.88 hp according to the new classification) are subject to registration, since the weight of the Ob 2m is about 140 kg, it is only subject to registration when the engine exceeds 8 hp or if the total weight of the equipment exceeds 200 kg.
How does the boat behave on the wave?
Because of its 10 degree keeliness, the boat is better at handling waves than flat-bottomed boats, it is softer at fine waves and less prone to yaw, but when the wave is on the head and high speed, it is possible to hit the nose ("goat"), so you should slow down and choose the optimal course relative to the wave.