Legendary flyboat The model, which was developed in Soviet times and has become a symbol of accessibility and simplicity for thousands of families who dreamed of their own boats, has long held a special place in the hearts of domestic water-engineers and lovers of relaxing water, and despite the emergence of many modern high-tech materials, interest in the classic parameters of this vessel is not fading, especially among those who appreciate the time-tested design.
The main feature that distinguishes Romantic from many other inflatable models of the era is its unique layout. load-carrying capacity Understanding the exact dimensions is necessary not only to restore a rare specimen, but also to create a high-quality modern analog using new materials such as reinforced PVC.
In this article, we will take a detailed look at all the geometric parameters of the body, pay attention to the nuances that are often overlooked when building copies, and consider how size affects driving performance. drawing-size This will allow you to avoid errors in cutting and assembly, which is especially critical when working with expensive modern fabrics.
General overall specifications of the shell
When planning a construction or restoration, the first thing to do is to determine the outer perimeter. Full length. Romantica is 3200 mm, which is the optimal rate for two people with a minimum set of equipment, and this length provides sufficient stability and allows you to develop an acceptable speed under oars or low-power motor without creating excessive water resistance.
Midel spangout width (the widest part) is 1,360 mm. This parameter is critical for cross-stability, and it's because of this width that the boat doesn't seem too narrow and allows you to place a load with some displacement from the diametric plane without critical roll, but it's worth remembering that when you're fully loaded, you can play a little bit, which is normal for inflatable structures with a fabric bottom.
The height of the side inflated condition varies between 350-380 mm, which provides the necessary float-stock It's important to remember that the actual working volume will depend on the pumping rate of the cylinders and the ambient temperature, because the air pressure inside changes.
When calculating the sizes for sewing covers or awning, always add 5-7% to the shrinkage of the fabric and deformation of the inflated cylinder under load.
Detailed geometry of cylinders and bottoms
The design of the cylinders "Romantics" has a specific shape, which is difficult to call purely cylindrical. The diameter of the main inflatable element is approximately 320-340 mm in free condition, but when assembled into a single housing, it flattens, forming a characteristic profile. Nose part cylinders narrowed and raised, which improves the germination of the wave and reduces the risk of “buried” nose when moving.
The bottom of the boat is made of dense fabric (originally rubberized) that is stretched between the cylinders, its length corresponds to the inner length of the cockpit, and the width is formed by stretch straps (slings) that pass through the bottom. Work area The cockpit is about 2.5 square meters, which is comfortable enough to accommodate two passengers back to each other or face to face.
The shape of the nose, which is rounded, almost egg-shaped, is a special consideration, which distinguishes Romantic from the more angular models of today, and requires precise cutting, because the slightest deviation in the size of the patterns can cause the entire structure to sway when pumped.
Table of basic dimensions and weight specifications
For ease of calculation and comparison with modern analogues, we have systematized key parameters into a single table, which is averaged based on the study of surviving specimens and factory documentation of past years.
| Parameter | Meaning | Note |
|---|---|---|
| Full length | 3200 mm | From forepeak to afterstevny |
| maximum width | 1360 mm | Downtown cockpit |
| Height of board | 360 mm | In working condition |
| Load capacity | 250 kg | Without considering the weight of the boat. |
| Weight gathered | ~22-24 kg | Depends on the humidity of the tissue |
Analyzing the data from the table, it can be seen that length-to-width ratio This is a classic indicator for rowing and motor-rowing boats, focused on stability, not high speed. reinforced PVC It allows you to reduce the weight of the structure to 18-20 kg while maintaining the same dimensions, which makes the boat more convenient to carry.
Transportability and dimensions in packaged form
One of the main advantages of Romantic is its ability to fold compactly: assembled and packaged, the boat fits in two bags (or one large, depending on the modification and year of release), the packaged product is approximately 900×400×300 mm, which allows you to easily place it in the trunk of a passenger car of the class “wagon” or even a hatchback with folded seats.
The weight of the kit, which includes cylinders, flooring, seats and a pump, usually does not exceed 25 kilograms. This allows you to carry the boat in disassembled form to one person, although for comfortable transportation over long distances it is still recommended to divide the load into two parts. Modularity The design also simplifies storage in the apartment.
How do you fold it?
Stack the boat along the cylinder folding lines, alternating directions to avoid the same areas, which will prolong the life of the material.
Effect of dimensions on driving performance
The dimensions of the Romantics dictate its behavior on the water. At 3.2 meters long, the boat has a moderate running differentiator. Under the oars, it goes smoothly, but because of the relatively soft bottom and the small length of the water line, it can visibly prowl in lateral winds. cross-engine power up to 5 hp allows you to bring the boat to plane only with one passenger of minimum weight.
The large width contributes to high initial stability, which is difficult to get up in a boat, but it is also difficult to drop it on your side. However, when moving at speed, a wide stern part creates significant resistance, which limits the maximum speed. perfect compromise between comfort and mobility.
It is worth noting that when the excitement is more than 0.5 meters high, the short base begins to affect: the boat begins to actively swing, following the wave profile.
Optimal engine power for Romantic - 2-3.5 hp This will provide a speed of 10-12 km / h and economical fuel consumption.
Nuances when building a copy yourself
If you decide to recreate "Romantics" yourself, using modern materials, strictly follow the original dimensions, but take into account the properties of the new material. PVC fabric is less elastic than rubberized, so when cutting, you need to make allowances for seams and heat-treatmentAn error of 1-2 cm at the length of the cylinder can lead to the fact that the boat simply will not be able to inflate to working pressure.
Pay special attention to the place of installation of the transom. In the original design, it was often removable or inflatable, but modern safety requirements dictate the installation of a rigid transmutation system. plywood-transIt should be exactly the width of the cockpit in the aft section, so as not to break the symmetry of the cylinders.
⚠️ Note: When the diameter of the cylinders increases by more than 10% of the original (more than 360 mm), the boat becomes excessively rolling and loses its speed specifications, turning into a clumsy raft.
To connect the elements, use high-quality glue and the correct gluing technology. The size of the linings and reinforcements should be sufficient to compensate for the increased internal pressure that modern PVC can withstand (up to 0.25-0.3 bar versus 0.15 bar in older models).
Comparison with modern analogues
Compared to modern PVC boats of the same class, such as the Frigate or Hunter, 3.2-3.4 meters long, Romantica loses in the rigidity of the bottom and the presence of a full-fledged inflatable keel. Modern models are often 3.4-3.6 meters long at the same width, which gives a gain in speed and comfort.
Modern counterparts require more careful care of valves and seams, while the Soviet design was as primitive and reliable as possible. However, the weight of modern boats made of dense PVC (900-1100 g / m2) can be higher than the original “Romantic”, if you do not use lightweight fabrics.
☑️ What to check before buying an analogue
Frequently Asked Questions (FAQ)
Can I install a 5 hp motor on a Romantic boat?
Theoretically, it can, but it would require strengthening the transom and the cylinders in the aft. The original design was not designed to handle such loads, and there is a risk of translation tearing off or damage to the seams during active plane. It is safer to limit yourself to 2-3 hp.
How much weight can a Romantic boat bear?
Passenger carrying capacity is 250 kg, which includes the weight of passengers, motor, fuel and equipment, and exceeding this limit leads to a decrease in the height of the board above the water and loss of stability, which is dangerous even in calm water.
Where to find the original designs for sewing?
Original factory drawings can be found in the archives of Model Designer magazines from the 70s and 80s or in specialized powerboating forums, but it is easier to remove the patterns from the surviving specimen, since over the years of production the sizes may have changed slightly.
Is romance suitable for sea fishing?
It is strongly discouraged from using this boat in marine conditions, even in the surf, and its low sides, lack of an inflatable keel and soft bottom make it extremely unstable and vulnerable to sea waves and sharp shells.