Owning a legendary Soviet and Russian aluminum boat is not only a pleasure to fish, but also a constant concern for the technical condition of the vessel. One of the key parts to ensure the comfort and safety of the crew is the windshield. Buy glass for the boat Ob 3So you value oncoming wind, splashes and insect protection, but you're facing a shortage of original parts on the market, and old glass is often bruised, cracked or simply missing, lost by previous owners.
The search for a suitable Plexiglas can turn into a real quest, since the factory sizes and fastenings may not coincide with modern analogues or artisanal modifications that are often found on the market. Ohh. In this article, we will look at where to find quality materials, how to calculate dimensions correctly, and what are the alternatives to factory solutions. The thickness of the material for boats Ob should be at least 4-5 mm to ensure the rigidity of the structure at a speed of 30-40 km / h.
And we'll also talk about the legal aspects of high-glazing and its impact on the handling of the vessel, and a sound approach to material selection will allow you to not just cover the bow of the boat, but create a full-fledged weather-proof cockpit. Let's take a look at the nuances to make your purchase durable and functional.
Where to find and buy glass for the Ob boat: markets and manufacturers
The first and most obvious question for the owner is where to buy this particular product. The market for parts for old aluminum boats is heterogeneous, and it's not always possible to find the perfect solution the first time. Large Internet sites offer many options, but often they are versatile pieces of plastic that need refining.
There are several main search channels, each with its own advantages and risks. If you want a ready-made solution, you should look at specialized boating stores, although the range there may be limited, often more effective is the search among private craftsmen and small manufacturers specializing in tuning boats.
⚠️ Warning: When buying used glass on the avito or forums, carefully examine the surface for microcracks and fatigue of the material. Old Plexiglas becomes brittle under the influence of ultraviolet light and can burst from the vibration of the motor.
Let’s look at the main sources where you can Buy glass for the boat Ob 3:
- 🏭 Specialized plants for the production of Plexiglas - allow you to order cutting according to your drawings, which is ideal for non-standard solutions.
- 🛒 Marketplaces and message boards – here you can find remnants from other projects or ready-made kits from private owners.
- ⚙️ Workshops for repairing PVC boats and metal vessels often have connections with suppliers or ready-made castings.
It is important to understand that the factory glass Ob 3 It had a specific shape with a bend that is difficult to replicate at home without heating, so many owners are switching to flat or slightly bent versions of more modern materials that are easier to handle.
Size and geometry: how not to make a mistake with the choice
Geometrics are the foundation of a successful installation. Ob 3 has a width on the cheekbone and transom, different from earlier models, so the glass from the Obi 2. or Kazan They might not work without a major modification of the mounts, and the standard factory solution was to have a certain height and angle of inclination, calculated aerodynamically.
When ordering or buying, you need to consider not only the width of the boat at the installation site, but also the height of the sides, as well as the desired Protection rating. If you plan to install a tent transformer in the future, the height of the glass must be matched with the tent framework.
Below is a table with indicative dimensions that are often used to upgrade the family's boats. Ob:
| Parameter | Value (mm) | Comments |
|---|---|---|
| Upper width. | 1200 - 1300 | Depends on the sides breaking down. |
| Central height. | 350 - 450 | Optimal for protecting Torso |
| Thickness of material | 4 - 6 | Less than 4 mm is dangerous to place |
| Inclination angle | 15 - 25 degrees. | To reduce sailing. |
Measure the width of the boat at the glass installation site at three points: port side, center and starboard. Aluminum boats often have deformation, and the average will be more accurate.
When calculating width, be sure to leave gaps for fasteners. Hard fixing of glass adjacent to the sides without dampers will cause cracks from vibration when the engine is running. It is also worth considering that high glass increases sailing, which can be critical in lateral winds.
Materials: acrylic, polycarbonate or ordinary glass
Material choice is a matter of safety and durability. In Soviet times, it was mostly organic glass (acrylic), which was transparent but prone to scratches and clouding over time. Today, the market offers stronger alternatives that allow for more robust glass. Buy glass for the boat Ob 3 with improved performance.
Polycarbonate (monolithic) is the leader in impact resistance, it's 200 to 300 times stronger than normal glass and 10 times stronger than acrylic. For a boat that can be hit by waves, rocks or random rods, this is ideal. However, it's more expensive and requires careful polishing when processing the edges.
- 🛡️ Monolithic polycarbonate - maximum strength, can withstand shots, is not afraid of hail, but has a high price.
- 💎 Acrylic glass (Plexiglas) is excellent transparency, easier to polish, cheaper, but more fragile when hit.
- 🚫 Ordinary silicate glass - is strictly not recommended because of the traumatic danger of fragments during destruction.
Acrylic is easier to mold. If you want to get a glass with a characteristic obdovo bending, acrylic can be heated with a building hair dryer and bent along a pattern. Polycarbnate bends in a cold way, but the radius of the bending must be large, otherwise there will be internal stresses.
⚠️ Warning: Never use hardened car glass. When it breaks, it breaks into a crumb that can get into your eyes and you can't replace it with water.
When choosing the thickness of the material, follow the rule: the larger the glass area, the thicker the sheet should be. For a boat 4 meters long and 1.5 meters wide, the minimum thickness is 4 mm, the optimal is 5-6 mm. This will ensure the necessary rigidity and lack of the effect of the "lens" when viewed through it.
Instructions for installation and fixing of glass
The installation process requires careful preparation and a set of tools. Just to fasten a piece of plastic to the board is not enough - you need tightness and vibration. Before starting work, make sure that the surface of the board is cleaned of paint, oxides and old lubricant.
To work, you will need: a drill with a set of drills (including a feather or crown for large holes), screws with a press puck, rubber gaskets or profile, a sealant for aquariums or special sealant vessels. Also, do not forget about an aluminum profile if you plan to manufacture a frame.
☑️ Installation tools
The sequence of actions is as follows:
- Mark the holes under the fasteners on the sides of the boat and on the glass itself (if it is not already drilled).
- Drill holes in the aluminum board, zinkut them so that the bolt hats do not interfere.
- Install rubber gaskets or glue a rubber profile on the end of the side.
- Apply a layer of sealant on the contact surface.
- Apply the glass and press gently, twisting the fastener.
Nuances of hermetic work
Use only neutral sealants. Acid (those that smell like vinegar) can cause aluminum to corrosion and destroy the structure of the metal at the contact points.
It's important not to pull the fastener. Excessive force can cause the plastic hole to deform and crack around the bolt. Use large diameter washers to distribute the load. If you use an aluminum corner to create a frame, join it with rivet or welding (argon), having tried on the design on the boat beforehand.
Tuning and additional accessories
Installing glass is just the first step to increasing comfort. owners Obi 3. They often go further, installing additional protections, and one of the popular solutions is a visor over glass, which saves from rain and direct sunlight.
Also worth considering is the possibility of installing side curtains made of transparent PVC fabric, which are attached to lightning or Velcro to the awning frame and glass, turning an open cockpit into a closed cabin, which allows you to fish in any weather without getting wet or freezing from the wind.
To improve functionality, you can install:
- 🌫️ Cleaners are small car or special shipyards if the glass is high.
- 💡 Backlight - LED tape around the perimeter for fishing in the dark.
- 📱 Fastenings for gadgets - sonar, navigator or smartphone on the inside of the glass.
Tuning allows you to adapt an old boat to modern comfort standards, but it is important to keep in mind that excessive weighting of the bow can adversely affect the driving performance of the planing.
An integrated approach to tuning (glass + awning + sidewalls) turns Ob 3 into a full-fledged micro-boat suitable for operation in any weather.
Safety and Impact on Manageability
Any change in the design of the vessel affects its behavior on the water. High windshield works like a sail. In high side winds, the boat can be very demolished, which requires the steering wheel to constantly adjust its course. This is especially true for lightweight aluminum boats with low draft.
In addition, glass changes the distribution of weight loads, installing a heavy frame and thick glass on the nose can cause the boat to be worse at planing or pecking with its nose on the wave, it is recommended to conduct test swims in safe waters after installation.
In terms of crew safety, the right glass prevents injury. In the event of a wave or abrupt braking, passengers will not fly out the nose. But it is important that the glass itself does not become a source of danger. The fastenings must be reliable, and the material must not form sharp shrapnel.
⚠️ Warning: When installing high glass, make sure it doesn't block the view in the lower sector. You should clearly see buoys, snags and other obstacles near the water itself.
Remember that Buy glass for the boat Ob 3 Proper installation and aerodynamics will ensure you have years of safe and comfortable operation of your vessel, and don't neglect to check your anchors at the beginning and end of each season.
Frequently Asked Questions (FAQ)
Can I use a car windshield for the boat Ob?
Technically possible, but highly discouraged. It's heavy, it's complex, it's hard to adapt, and most importantly, it's traumatic when it's broken down. It's better to use a monolithic polycarbonate or acrylic 5-6 mm thick.
What thickness should the glass be for Ob 3?
The optimal thickness is 4-5 mm for acrylic and 3-4 mm for polycarbonate. Using a material thinner than 3 mm will lead to strong vibration ("flag effect") and rapid destruction of the fasteners.
Do I need to register the installation of glass in GIMS?
The windscreen itself does not require the registration of changes in the boat's ticket, as it does not change the load capacity or passenger capacity dramatically, but if you install a full-fledged cabin with a roof, this may require re-registration.
What is better to glue the glass to the aluminum side?
Use special plastic and metal sealants for gluing, such as MS polymers or polyurethane car sealants (such as 3M, Teroson).
How to polish scratches on Plexiglas?
Small scratches are removed by polishing toothpaste or special paste GOI. For deep defects, sandpaper with a gradual decrease in grain content (from 400 to 2000) and finish polishing will be required.