Soviet classic shipbuilding, known to millions of fishermen and hunters, still ply the expanses of our rivers and lakes. Aluminum boat ProgressThe silk-powered silk, produced at the Nikolaev Shipyard, has become a benchmark for reliability and accessibility for several generations of water engines. Despite the emergence of modern analogues of composites and new alloys, interest in the technical specifications of these "iron horses" is not fading, especially among those who are looking for a time-tested option for purchase.
The issue of exact dimensions often arises before owners when transporting a vessel on a trailer or calculating storage space in a garage. Overall length And width directly affects wave stability and the ability to install a powerful engine, and in this article, we will look at the sizes of various modifications, from earlier versions to later models, in detail to help you make the right choice.
Understanding the actual parameters of the hull is necessary not only for logistics, but also for calculating the theoretical speed and load capacity. The actual weight of the boat hull Progress varies from 180 to 250 kg depending on the year of production and configuration, So, this is a very different experience from today's lightweight counterparts, and let's dive into the technical details that are hidden from the eyes of the average user, but critical to the operation.
Evolution of dimensions: from Progress-2 to Progress-4
The history of the lineup began with a model that formally did not carry numbers in the name, but is often referred to as a "two". rowing with the possibility of installing an outboard motor with a capacity of up to 8 hp The length of the waterline in the early samples was less than in subsequent versions, which made them more maneuverable, but less stable on the oncoming wave.
With the model coming out. Progress-2 In the 1960s, designers extended the hull to 4.5 meters, allowing more passengers to be accommodated and increased buoyancy, and the mid-spangout width remained in the region of 1.5 meters, which was considered the optimal balance between stability and water resistance, and the weight of such a boat without a motor was about 180 kg, which was much lighter than the wooden counterparts of the time.
When buying used boat Progress pay attention to the condition of the transom - it is he who is most often subjected to corrosion due to constant contact with water and vibrations of the motor.
The model was later replaced by Progress-4The size was revised to increase comfort, the length was 4.6 meters and the width on board was 1.72 meters, and the increase in width allowed for improved stability, which made the boat safer for fishing in standing water and in small bodies of water.
Technical specifications and weight of the body
One of the main parameters that influence the choice of the vessel is its mass: aluminum-magnesium alloy AMg5M, from which they were made. ProgressThe corrosion resistance was excellent, but it had a significant specific gravity. For the Progress-4 model, the weight of the body with equipment (tiller, seats, flooring) was approximately 200-210 kg.
This figure may seem impressive for transportation on the roof of a passenger car, so owners used trailers more often. Load capacity The boats were capable of carrying up to 400 kg of payload, including passengers, engine, fuel and equipment, which meant that three medium-sized people with full gear could comfortably be accommodated.
It is important to consider that the actual weight may differ from data-sheet figures due to shell overgrown, water accumulation in the halduks or the installation of additional equipment. Engine bay. The hazelnuts were often filled with water, which increased the displacement, and when calculating the trailer for transportation, you need to put a safety margin of at least 300 kg.
Comparative table of models Progress
For ease of choice and understanding of size evolution, we have summarized the basic parameters of popular modifications in a single table, and here are the data that are relevant for most surviving specimens, although factory tolerances may vary.
| Parameter | Progress-2 | Progress-4 | Progress-5 (M) | Progress-7 |
|---|---|---|---|---|
| Full length, m | 4,50 | 4,60 | 4,70 | 4,75 |
| Maximum width, m | 1,50 | 1,72 | 1,72 | 1,72 |
| Height of the board, m | 0,60 | 0,62 | 0,65 | 0,68 |
| Body weight, kg | 180 | 205 | 215 | 225 |
| Load capacity, kg | 350 | 400 | 400 | 400 |
As you can see from the table, evolution has been on the path of increasing the volume and height of the board. Progress-5 And the upgrades got higher sides, which improved seaworthiness, but the increased weight made them less comfortable to pull ashore by hand without using a winch.
Design features and transmutation board
The slingboard is a critical element for the engine installation. Progress It has a specific shape and dimensions, different from modern "Kazak" or "Crimea", the height of the transom is standard 380 mm, which is suitable for most outboard motors with short lower unit.
The secrets of transance amplification
Experienced owners often reinforce the transom board with a sheet of stainless steel or an additional layer of plywood impregnated with epoxy resin, since the standard aluminum can deform over time from the vibration of a powerful motor.
The width of the transom allows you to install motors with a capacity of up to 30 hp, but normally recommended capacity This was limited to 15 to 20 hp for earlier models and 25 hp for later versions, and exceeding these values requires major design and transax rework, which is not always safe.
⚠️ Warning: When installing a motor with a power of more than 15 hp, be sure to check the condition of the mounts of the transom board. Metal fatigue in this place is a common cause of accidents on the water.
Capacity and comfort on board
The interior space of the Progress boats is designed utilitarianly. cockpit It has a flat floor formed by the tops of the rundooks, which is convenient for moving inside the boat while fishing. The width in the midfield area allows two fishers to sit comfortably back to back or face to face each other while fishing.
Not only do nose knobs and feed cans store things, they also keep things safe, and the air boxes are built to keep even a fully watered boat afloat. float-stock It may decrease over time due to microcracks in welds.
☑️ Check before buying used Progress
For overnight stays or long stays, many fishermen install awnings that are the size of a boat. Standard Progress awnings cover the entire cockpit area, relying on arcs installed in special nests on the sides.
Transport and storage
The dimensions of the Progress-4 and its analogues are ideal for transport on a standard passenger trailer. The width of 1.72 meters does not require special permits for driving on public roads, as it does not exceed 2.55 meters. However, the length of 4.6-4.7 meters with the engine may require removal of the engine or the use of a long trailer.
When stored in winter, it is recommended to turn the boat upside down or cover it with a waterproof awning. Aluminum does not rust like steel, but oxidizes and can be subjected to electrochemical corrosion in places of contact with other metals. Keeping the boat upside down on flat supports prolongs the service life of welded seams, Preventing the accumulation of moisture and snow inside the body.
⚠️ Note: Do not store the boat Progress, resting it only on a transom or nasal rod - this can lead to irreversible deformation of the hull under its own weight.
Frequently Asked Questions (FAQ)
What is the maximum engine to be put on Progress 4?
The manufacturer recommended engines up to 20 hp However, in practice, the owners successfully operate these boats with engines up to 30 hp At the same time, you need to carefully monitor the condition of the transom and not overload the boat with passengers.
How many people can the boat Progress on the passport?
Passport capacity is 4 people, but taking into account the weight of the engine, fuel and equipment, 2-3 adults can swim comfortably and safely.
Can a crack be made in Progress's aluminum case?
Yes, repairs are possible using argon welding and similar alloy wire (AMg5), and it is important to clean the welding site to shine and follow the technology so as not to burn out the thin metal of the side.
What is the difference between Progress 4 and Progress M?
The M modification (motor) often had a reinforced transom and a modified buoyancy system, the exterior dimensions remained almost identical, but the cockpit ergonomics and reliability of the mounts improved.
The Progress boat remains one of the best options for entering boating sport due to its maintainability and availability of spare parts, despite its solid age and weight.