Legendary aluminum-boat Progress-2, which was produced in the USSR, is still in great demand in the secondary market due to its reliability and maintainability. boat-size To select the engine, calculate the load capacity or repair damaged contours of the shell, understanding the actual dimensions is necessary not only when buying, but also when designing a trailer or storage space.
In this article, we will discuss everything in detail. geometrical hulls, including length, width, height and keeliness. Progress-2 It will also have an impact on its seaworthiness and wave behavior, and it will also provide accurate weight and payload data, which is critical for GIMS compliance and water safety.
Although the model is considered a classic of Soviet shipbuilding, confusion in the numbers is often due to various modifications and natural wear of old copies. technical drawings And passport information to give you the most objective picture, so you can avoid mistakes when choosing attachments and components.
Main overall specifications of the body
The main parameter determining the classification of the vessel is its lengthFor the Progress 2, the figure is 4,550 mm, which puts the boat in the category of four-meter “teenage” requiring registration, which, combined with the design of the bottom, allows for decent speeds, but also imposes restrictions on the way of transportation.
The width of the body in mid-spangout is 1600 mm, which provides a decent stability However, it is worth considering that the actual width on the deck may vary slightly depending on the year of manufacture and the availability of a hinge beam. Aluminum alloy D16AM, from which the body is made, allows you to maintain the shape even with small dents, but the geometry remains the reference for Soviet motorcycles.
The height of the bow is 750 mm, and in the stern - 650 mm. height It provides good germination on the wave and protection against splashes, but requires careful distribution of cargo. If you overload the feed, a low transom can cause off-shore water drain when moving against the wave.
Detailed analysis of the size and shape of the bottom
The design of the bottom is what distinguishes Progress-2 from flat-bottoms. Kieliness And you can actually use a transom of 10 degrees, which is a trade-off between smoothness and stability, and it's a shape that makes you feel more confident. water-waterbut requires a more powerful motor to get on plane compared to a flat bottom.
The sculpted seams are made with a radius, which has a positive effect on the hydrodynamics. The boat is not prowling, but is confidently steering, but it is the corners and junctions of the contours that are often affected by impacts on obstacles, so knowing the exact geometry is essential for quality repairs.
⚠️ Attention: When measuring keeliness on an old boat, consider possible keel deformations. If the boat has been standing on an uneven trailer for a long time, the real angles may differ from the factory 10 degrees, which will affect handling.
It is important to note that the shape of the feed part contributes to education. sucker If you turn abruptly, if you're not fast enough, it's a design feature that you need to know about, and if you load it right, you can minimize that effect and improve your driving performance.
When buying an old boat, use a long ruler or a strained thread to check the keel's evenness - a deflection of more than 2 cm indicates serious violations of geometry.
Train and outboard motor
Transnz height - a critical parameter for selection outboardProgress-2 has a 380 mm (other estimates suggest up to 400 mm with a hinge bar) standard for medium-power motors, but setting a leg that is too long may require reworking or using spacers.
The width of the transom allows you to install motors up to 20-25 hp, although the passport often limits this indicator. Legal capacity It depends on the year of release and the specific modification, but the transom can withstand heavy loads if installed correctly.
| Parameter | Value (mm) | Comments |
|---|---|---|
| Longest length | 4550 | Full length by roundabout |
| largest width | 1600 | Midel-spangout. |
| Height of the side (nose) | 750 | From the keel to the timber |
| Transcent height | 380 | Long leg standard |
| bottom silhouette | 10° | On the transom. |
When you install the motor, it's important to keep the symmetry. lower unit If you're relatively diametric, even a few centimeters can cause the boat to be pulled away permanently, which is especially noticeable at low speeds, and the exact size of the transom helps make the perfect motor bracket.
Capacity, weight and load capacity
The boat with the equipment weighs about 140 kg, which is large enough to pull ashore by hand, but quite acceptable for the boat. transportation The aluminum case is durable, but the mass is its weak point compared to modern composites.
Passenger load capacity is limited to 400 kg, which includes the weight of passengers, engine, fuel and equipment. Five people. The boat is most comfortable with a crew of 3-4 people, exceeding the load leads to a decrease in the free board and an increase in the risk of water scooping.
☑️ Checking before getting on the water
Weight distribution by weight hull-length Shifting the load to the nose improves the swelling, but increases the risk of burying. Shifting in the stern makes it easier to get to the plane, but makes the boat roll. Optimal balance is achieved by experiment.
Drawings and modifications of the model
There are several modifications, and size Classic Progress 2 was characterized by sharper contours, while later versions (sometimes called Progress 2M) could have a reshaped nose, and blueprints are an indispensable tool in the recovery of lost elements.
Factory drawings They allow you to recreate lost parts, such as knobs, cans or remote controls, and many owners use large-scale copies of the blueprints to accurately mark new overlays or reinforce the transom.
Features of drawings of different years
The 1970s drawings often indicated the thickness of the 2mm skin sheets, while later versions could use 3mm sheets for the bottom to improve strength.
If you are planning a major renovation, find drawing Differences in the angles of the cheekbones or the shape of the forehead may not be obvious to the eye, but are critical to performance.
Practical application of sizes
Knowledge of the exact size is necessary for selection tentThe awning should close the cockpit, but not interfere with the control. Standard awning sizes are often universal, but for a perfect fit, it is better to sew individually according to patterns.
When choosing trailer Not only the length of the hull, but also the length of the breather. The total length of the assembly with the engine can exceed 5 meters, which requires compliance with the rules of the road during transportation. Progress-2 dimensions allow you to place it on standard single trailers for boats up to 4.5 meters.
⚠️ Attention: Remember, when you put a powerful motor in, the center of gravity shifts, and the size of the boat makes up for that by moving the batteries and the anchor to the bow.
Sizes are also important. storage. Progress-2 takes up a significant area, so make sure you have space for a garage or canopy before buying. In an inverted form, the boat takes up less space but requires reliable support.
Accurate knowledge of the dimensions of Progress-2 is necessary not only for registration, but also for safe operation, selection of the engine and manufacture of attachments.
Frequently Asked Questions (FAQ)
What is the real load capacity of Progress 2?
Officially, the payload capacity is 400 kg, including the weight of the engine and crew, and in practice, the boat holds more, but overloading reduces safety and impairs driving performance.
Can I install a 30 HP motor?
Structurally trans and contours will withstand such a motor, but this may require changing documents or be considered a violation if the passport indicates a limit of 20-22 hp.
What is the thickness of aluminum used in the case?
Depending on the modification and the year of release, the thickness of the sheets of the skin varies from 2 mm to 3 mm. the bottom is usually thicker than the sides to increase the strength of the impact.
Will the awning from Progress-4 fit?
No, the dimensions of Progress 2 and Progress 4 are very different, and the tents are not interchangeable without a major alteration, because the difference in length and width is too great.