The exact mass of the legendary body Progress-2 It often occurs in owners planning to upgrade the boat or its transportation over long distances. Progress 2 Boat Weight Without Motor It's a critical parameter that not only depends on the load capacity, but also the ease of launching alone or with an assistant. The Soviet data-sheet figures shows only the numbers, but the real operation makes its own adjustments, changing the baseline values due to the accumulation of dirt, water and corrosion.
Many anglers mistakenly believe that the mass of the D16T aluminum alloy that makes the body has remained unchanged for decades. Aluminum-magnesium alloy It's really rust-resistant, but surface oxidation and the accumulation of bottom sediments inside the shell can add substantial kilograms to the factory performance. load capacity and the choice of the optimal outboard motor.
In this article, we will discuss in detail the technical specifications, the effect of the configuration on the total weight and ways of accurately weighing your boat. Accuracy of data This is a very important issue for water safety, so you can't ignore the error in your calculations, and you'll learn why data-sheet figures can be different from the actual data, and how it affects performance.
data-sheet figures and factory specifications
According to the manufacturer's technical documentation, the mass of the body Progress-2 Without attachments and motors, it is 200 kg, which is a reference figure for calculations, but it refers to the ideal condition of the vessel immediately after leaving the assembly line. alloy They were used of high quality, which provided a light and durable body capable of withstanding significant loads on the waves.
It is important to understand that 200 kg includes not only the body itself, but also welded elements: transom, bald bars and keel. transom board This model is made of wood and also included in the total weight, although its weight can vary depending on the moisture of the wood. factory standards allowed for small deviations in the thickness of the sheets of skin, which could slightly change the final weight within 2-3 kg in one direction or another.
The design of the boat was to use rivet joints, which also have their own mass. rivet It weighs a little, it's hundreds of them, which adds up to a lot of weight, and data-sheet figures doesn't take into account the possible factory seams or the irregularity of rolling sheets, which is common in mass production.
When buying a used boat, always lay +5-10% to the passport weight on the error of measurements and the condition of a particular instance.
Factors Affecting the Real Weight of the Body
Real exploitation makes its own adjustments to the dry digits of documents. The first and most significant factor is the fact that the data is not the data. metal-corrosionDespite the durability of the D16T alloy, when the paint coating or the anodic protection is damaged, aluminum oxidizes. The oxides occupy a larger volume and can increase the mass of the surface layer, although this process is slow.
The second important aspect is the accumulation of moisture and dirt, and the water, sand and silt accumulate inside the hull, especially in the bow and under the banks, for years. precipitation Even after careful washing, there is moisture in the metal micropores and hard-to-reach corners, which increases the overall weight of the vessel.
The third factor is modifications and repairs, and owners often reinforce the transom, weld extra trays, install anchor boxes, or change the wooden flooring to a heavier or lighter one. tuning-piece It changes the balance and the total weight, and replacing the standard wooden flooring with carpet-coated plywood can add 5 to 15 kg depending on the thickness of the material.
- 🛠️ Status of the skin: The presence of dents and patches increases the mass of the metal.
- 💧 Moisture saturation: The tree in the structure (transom, beams) absorbs water.
- 🧹 Pollutions: frozen lubricant, silt and sand in the hold.
- 🔩 Fastening: Replacing the regular rivets with bolt joints weights the design.
The impact of the configuration on the weight of the boat
Often, "weight without motor" means different levels of equipment. Progress-2 It was supplied with a minimum set of housing, two cans, switches and a windshield, but many owners purchased or installed additional equipment. frame-cloth, which in its assembled form weighs about 15-20 kg together with arcs.
The windscreen is particularly worth paying attention to, and depending on the modification, it could have been made of Plexiglas or had a metal frame. Metal frame The windbreaker adds significant weight compared to lightweight plastic or removable versions. If you buy a turnkey boat, be sure to consider the mass of all installed accessories.
Also included were often anchor devices, life jackets in bags and gear boxes, which are not formally part of the hull but are physically in the boat. load capacity We need to subtract the mass of all this equipment from the maximum permissible value, and ignoring this rule can lead to overload and reduce safety on the water.
Hidden weight of equipment
Windscreen with a frame can weigh up to 8-10 kg, and a full set of awning with arcs and a bag - up to 25 kg.
Comparison of weight with analogues and modifications
To understand the place Progress-2 It's useful to compare it to the competition in the aluminum boat series. Kazanka- 2MThe silk, which is a direct competitor, had similar dimensions, but was often heavier due to the design features of the contours and the thickness of the metal. Comparative analysis It shows that Progress won in ease of movement, which partially compensated for its mass when using low-power engines.
There are various modifications, such as Progress 2M Modernized versions often have a reinforced bottom or altered transom geometry, which inevitably leads to weight gain. Aluminum alloys Other brands used in different years of production, could also have different densities, although this difference is insignificant for an amateur boat.
Below is a table showing the approximate weight of the hull according to condition and configuration, and the data is averaged based on the experience of many owners.
| Status/Completion | Estimated weight (kg) | Note |
|---|---|---|
| Factory New (1970s) | 200 | Basic equipment without awning |
| B/o after washing | 205-210 | Taking into account oxides and moisture residues |
| B/u "as is" | 215-225 | With mud, water and old gear |
| With full awning and glass | +25-30 | In addition to the weight of the hull |
The difference between the "dry" weight and the "as is" weight can reach 25 kg, which is critical for one person when loading on a trailer.
Practical aspects of transportation and loading
Transporting a boat weighing more than 200 kg requires a serious approach. Progress-2 It's almost impossible to walk on the roof of a car alone, and it's dangerous to health. boat-trailerIt also has its own mass, but distributes the load on the axle of the car.
When you're going down from the sloping shore, the weight of the boat is the deciding factor, and if you're planning to lower the boat by hand, without the ladder, you're going to need at least one person, preferably two. Aluminum case It is slippery, and it is extremely difficult to hold a 200-pound structure on wet grass or sand.
To make things easier, many owners put transport wheels on the transom, or use special trolleys, which allows one person to move the boat on a hard surface. centre Progress is displaced, and if installed incorrectly on the trolley, the boat can capsize.
☑️ Preparation for transport
⚠️ Attention: When lifting the boat together, be sure to coordinate actions. A sharp jerk can lead to a back injury or a boat fall, which is dangerous for both people and the integrity of the hull.
Precision weighing methods and error accounting
If you need to know the exact weight of your specimen for official registration or technical calculations, you can't rely on an eyewatch. floor-weight heavy load capacity (up to 300-500 kg) The boat is installed on the scales, having previously zeroed the container (stands).
A more complex but accessible method is to weigh in parts or use a suspended scale (cantery) with subsequent recalculation, if there is a possibility of suspension. Progress-2 is the easiest way to use car scales, having driven them on a trailer with a boat and without, subtracting then the mass of the trailer and fuel in the car.
Weighing is important to consider the error of measuring instruments. Cheap household scales can give a spread of up to 5-10 kg. To obtain reliable data, it is recommended to measure several times. The margin of error 5% for a boat of this mass is 10 kg, which is a significant value.
- ⚖️ Sizing: Check the scales with known cargo before measurement.
- 🌧️ Dry: Weigh the boat after drying for a few days.
- 🧹 Cleanliness: Remove all garbage, water and disconnect the removable equipment.
⚠️ Attention: Never attempt to weigh the boat by hanging it over one side or a transom on weak hooks. The aluminum hull can deform under point load, breaking the tightness of the seams.
FAQ: Frequently asked questions
Can Progress 2 be reduced to make transportation easier?
You can drastically reduce the weight of a metal case without breaking its strength. You can only remove all removable equipment (tent, glass, drawers), replace the wooden floor with lighter composite materials and thoroughly clean the case of dirt and oxides. Some owners drill rivets and replace them with lighter ones, but this is a complex and risky process that requires professional welding or riveting.
Does the weight of the boat affect fuel consumption?
The heavier the boat, the more power it takes for the engine to go into the planing and maintain speed. Progress-2 With a mass of 200+ kg, a more powerful motor is required for efficient plane compared to light PVC boats, which leads to increased fuel consumption, especially at low displacement speeds.
Why is my Progress 2 more difficult than the passport says?
The main reason is age: over decades of operation, moisture penetrates the metal, oxides form, and dirt accumulates in the structural voids, and previous owners could perform repairs using thicker metal or additional linings, which increased the total weight of the boat above factory standards.
Which engine is the best for Progress 2, given its weight?
For a confident getting on plane with one person (about 80 kg) and taking into account the weight of the hull (200 kg) and fuel (30 kg), the total weight is about 310 kg. For such a displacement, the optimal engine is considered to be 10 hp Motors 5-6 hp will bring the boat to plane with only one passenger and a minimum load.