Legendary OBE 1 The aluminium boat, which has been in production since the early 1960s, still plows the vastness of rivers and lakes, attracting the attention of both collectors and practical fishermen. Overall dimensions These boats were designed taking into account the specifics of Siberian water bodies, where high permeability and stability were required.
Many owners are looking for accurate information about the length, width and weight of the body to plan transportation or install a new engine. Aluminum alloyThe boat's slenderness provides the necessary strength at a relatively low weight, but the physical parameters of the vessel impose certain limitations on its operation. load capacity and selecting the right trailer.
In this article, we will discuss in detail all the geometric parameters of the hull, including the height of the side and the dimensions of the cockpit. OBE 1 This data will help you make an informed decision about buying or upgrading this classic vessel.
Overall dimensions of the body and cockpit
The basis for any calculation is the outer perimeter of the vessel. OBE 1 The waterline and the full length differ, which is important to consider when calculating water resistance: the hull is exactly 4,500 mm long, which makes the boat a medium-sized boat, and the mid-spangout width is 1,600 mm, which ensures decent stability even with a full crew.
The height of the midfield is 650 mm, which is a compromise between the protection against splashes and the total weight of the structure. cockpit The cockpit is about 3200 mm long, leaving enough space for passengers and equipment, and the width of the cockpit at its widest reaches 1,300 mm, allowing you to comfortably fit in two or three.
- š Full length of the body: 4500 mm.
- š Maximum width: 1600 mm.
- š Height: 650 mm.
- š£ Length of usable space: 3200 mm.
ā ļø Note: When measuring an old boat, consider possible deformations of the transom or bottom that could occur during decades of operation and change the geometry by 1-2 cm.
Weight specifications and load capacity
Weight is a critical parameter for an aluminum boat. OBE 1 without motor and equipment is 150 kg. This is quite a lot for single transportation, but it is quite acceptable for launching from a flat shore or using a single vehicle. winchThe structural weight includes welded stiffness elements and seats.
The full carrying capacity of the vessel is limited to 400 kg, which includes the weight of passengers, engine, fuel, anchor and other equipment. If you plan a long expedition, you need to carefully monitor the distribution of mass so as not to drown out the weight of the boat. turret Exceeding the limit leads to loss of driving performance and increased risk of water flooding.
To calculate the payload, you have to subtract the weight of the engine from the total limit. If the engine weighs 30 kg, and the tank weighs 20 liters of fuel (about 15 kg), then the share of people and things is about 355 kg. Aluminum case It does not forgive overload as much as inflatable boats, so weight discipline is paramount here.
Transnance parameters and motor requirements
Train boat OBE 1 The transom is 380 mm, which corresponds to the then-current short-devut (S) standard. However, modern motors often have a long-devut (L), which requires careful modeling or fitting of the liner.
The maximum recommended engine power is 20 hp, although many owners put more powerful units. transom plate It is reinforced, but excessive power can lead to engine tearing at full speed or deformation of the aft. The optimal choice is the engines with a capacity of 9.9-15 hp, which provide a speed of about 30 km / h.
| Parameter | Meaning | Note |
|---|---|---|
| Transcent height | 380 mm | Standard āSā (short) |
| Max. Power. | 20 hp | Recommended |
| Motor weight (max) | 45 kg | Without prejudice to stability |
| Type of data-devutual | Short (S) | 381 mm as per standard |
When installing a modern motor with a long daydvut, use a slot on the transom to lift the engine and avoid increased water resistance.
The motor is mounted through brackets, the distance between which is standardized, and the state of the welds on the transom is important, since this is where the maximum vibration loads are concentrated. brackets They must be safely welded to the skin and sides.
Transportation and dimensions on the trailer
In preparation for carriage OBE 1 The key is width, given the removal of the transom plate and the zygomatic splashers, the real width can be as high as 1,650 mm. This fits into the dimensions of the passenger trailer, but requires careful parking and traffic in dense traffic.
The height of the boat on the trailer depends on the rack chosen. The standard height of the side of 650 mm plus the height of the trailer gives a total height of about 1000-1,100 mm from the ground, which allows you to pass freely under most barriers and arches. keel boats should lie tightly on rollers or keelblocks to avoid distortions.
ā ļø Warning: When transporting, be sure to remove removable elements (seats, windshield) so that they do not fall out and do not get damaged on the way.
The length of the trailer should provide overhang of no more than 1-1.5 meters, unless additional support is used. The weight of 150 kg requires reliable braking, as inertia during braking of the car can displace a lightweight but slippery aluminum boat. riffled bottom It helps in clutch, but does not guarantee immobility without fastenings.
āļø Preparation for transport
Capacity and layout of the cabin
Interior space OBE 1 The bow trunk is sealed and allows you to store dry things, anchors or fuel, and the bulkhead separates the nose from the cockpit, ensuring that the bow or aft parts are not completely filled with water.
Passenger capacity is officially declared as 4 people, but taking into account the dimensions of adults and equipment, two or three are most comfortable. The banks (seats) are located across the body. The front seat is often made removable or foldable to increase the space under the feet.
- š The volume of the trunk: 100 liters.
- š„ Passenger capacity: up to 4 people.
- šŖ Type of seats: rigid aluminum cans.
- ā Jealous rings: 4 pcs. on the perimeter.
For fishing, the central bank is often removed, making room for tackles or sonar. The aluminum design makes it easy to drill additional holes to mount the fishing rod holders without disturbing the tightness of the body if you use a sealant. Component It is easy to adapt the boat to specific tasks.
Technical features of aluminum alloy
The body of the boat is made of aluminium aircraft alloy AMg5M. This material has high corrosion resistance and strength. the bottom thickness is 2 mm, and the sides and decks - 1.5 mm. Such parameters allow the boat to withstand impacts on small obstacles, but require accuracy on rocky rolls.
Welds are argon-arc welded, which ensures high reliability of joints, but over time, microcracks can appear in stress zones. Anti-corrosion treatment It is not required in the classical sense, as the oxide film protects the metal, but the painting improves the aesthetic properties.
The Secrets of Longevity
The Ob 1 boats have been in service for decades thanks to the use of high-quality Soviet aluminum, which often surpasses modern Chinese counterparts in quality.
When buying a used boat, pay attention to the skin of the cheekbones and the foreshoot, which are the areas that take the main shocks of the waves. If the thickness of the metal here is clear and the seams are intact, the boat will last for a long time. AMG5M alloy It is practically not prone to aging.
Comparison with modern analogues
Comparative. OBE 1 With modern aluminum boats, you can see the difference in design approaches. Modern models are often lighter and less stable on the wave. The classic width of 1600 mm gives the Ob an advantage in stability, allowing you to confidently anchor even in windy weather.
But modern boats often have more complex underbody contours, providing better plane output with less engine power. HydrodynamicsThe Obi is designed to be a steady ride, but not a record speed, and for quiet fishing and tourism, it remains out of competition in terms of price/quality/reliability.
The main advantage of Ob 1 over modern analogues is the reliability of the design, proven over decades, and the ease of repair in the field.
When you're choosing between retro classics and market innovations, consider your priorities. If you want top speed and minimum weight, look at the new ones. killabilityCapacity and repairability ā the size and specifications of the boat Ob 1 make it an ideal choice.
What is the real speed of the boat Ob 1 with a 10 hp engine?
With a 9.9-10 hp engine and one passenger, the Ob 1 boat develops a speed of about 20-22 km / h. At full load (3 people), the speed drops to 15-17 km / h. For planing, a minimum of 8-9 hp is required with one person on board.
Can I install 1 inflatable tubes on the Ob?
Yes, many owners install homemade or factory inflatable tubes (liquids) to improve stability and protect the side, which increases the total width of the boat by 20-30 cm on each side, which must be considered when transporting.
Do I need to paint an aluminum boat Ob 1?
Painting is not necessary for corrosion protection, as aluminum itself forms a protective oxide film, but painting with special soils and paints for aluminum significantly improves the appearance and simplifies cleaning from stain.