Choosing a swimming vehicle for fishing or a family vacation on the water is always a search for balance between load capacity, maneuverability and price. In the segment of medium-sized inflatable boats, a special niche is occupied by a model known as the "Special Boat". Triple 390This 3.9-meter range is considered a “middle ground” for those who are already cramped in double mattresses, but it is too early or expensive to buy a full-fledged boat, and in this article we will discuss in detail why this model attracts the attention of boaters and what nuances should be considered before buying.
The appearance and overall architecture of the boat immediately make it clear that you are in front of the boat. toolThe elongated body allows you to feel confident on the wave, which is often not available for shorter counterparts. The design is designed with the requirements of GIMS, which makes it legal to operate without registration (if you comply with the weight limits of the engine), although for complete safety and comfortable speed, many owners prefer to file documents. It is worth noting that under the name "Trier" on the market can be found as original products and various modifications from different assemblers using similar patterns, so checking certificates is the first step to a successful purchase.
The universality of application deserves special attention. Trier's boat 390 It performs equally well in the calm waters of closed water bodies and on rivers with moderate currents. Due to its dimensions, it is able to accommodate a crew of three or four people with a full set of equipment, making it ideal for multi-day fishing expeditions. However, to realize the full potential of this boat, you need to competently choose attachments and understand the limits of permissible loads, which we will talk about later.
Structural features and materials of the body
The basis of reliability of any inflatable boat is the quality of the materials used. In the case of a model with a length of 3.9 meters, the requirements for strength are increased due to the increased sailing and contact area with water. PVC (polyvinyl chloride) with a density of at least 850-950 g / sq.m. Such material is resistant to fuel (combustible and lubricants), ultraviolet radiation and mechanical damage on the rocky bottom.
⚠️ Warning: When inspecting the boat before buying, be sure to check the seams for "non-progly": inflatable tubes must be rigid and evenly pumped. Soft areas may indicate a malfunction of gluing, which will manifest under load.
The design of the bottom is a separate topic for discussion. For a length of 3.9 meters, two options are most relevant: a low-pressure inflatable floor (LDPB) and a plywood or aluminum flatbed. NDMA It provides better passability and comfort, as you are sitting on an inflated mattress, but loses in planing speed. The plywood bottom (most often an aluminum profile or plywood) gives a harder ride and better holds the wave, but takes time to assemble and disassemble.
An important element is the availability quilt The Trier 390 often uses the same material as the cylinders or more wear-resistant rubber, and the stringer system, which protects the cylinders from being hit and resistant to mooring, is also worth looking at.
- 🛡️ PVC reinforced - the main material that ensures tightness and durability of the structure in contact with an aggressive environment.
- ⚓ Kilson defense - reinforced strip in the center of the bottom, critical for ashore exits without the risk of puncture.
- 💨 Frog valves. They allow for quick pumping and venting of air and are also easily replaced in the field.
The choice between NDND and floorboard depends on your priorities. If you value speed and driving performance on the wave, choose a hard bottom. If the main thing for you is mobility, low weight and the ability to sleep in a boat with maximum comfort, then low-pressure He will be the leader in this class.
Technical specifications and load capacity
The dimensions of the Trier 390 dictate their own rules of operation. The length of 3.90 meters and a width of about 1.60-1.70 meters create enough volume to safely keep three adult passengers afloat. However, passport and real operational capacity are two different things. Theoretically, the boat can withstand up to 600-700 kg, but to enter planing mode with an engine, this weight must be significantly less.
Displacement and buoyancy are designed with a margin, which meets safety requirements. It is important to understand that the distribution of weight affects driving performance. Shifting the load to the nose or stern can lead to yaw or, conversely, burrowing the nose in the wave. The optimal load for a comfortable and fast ride is about 300-350 kg, including the weight of passengers, motor, fuel and equipment.
Below is a table with indicative technical data specific to boats of this size class (specific figures may vary slightly from one manufacturer to another):
| Parameter | Meaning | Note |
|---|---|---|
| Full length | 390 cm | Dimension inflated condition |
| Full width | 165-170 cm | Affects sustainability |
| Load capacity | 600-750 kg | Maximum permissible |
| Boat weight (bottom) | 45-55 kg | Depends on the bottom type. |
| River power. Engine power. | 9.9 - 15 hp | For glossing with 2-3 people. |
When calculating weight, don't forget the mass of the engine and the full tank. A two-stroke engine with a capacity of 9.9 hp weighs about 35-40 kg, a four-stroke 15 hp already under 45 kg. Add the weight of the fuel (1 liter of gasoline ≈ 0.75 kg), oil, anchor, tackle and passengers. maximum load 700 kg is achieved very quickly, so the rational distribution of luggage in the cockpit becomes a priority.
Choosing the optimal outboard motor
The question of "what engine to put on Trier 390" is one of the most frequent on water-motor forums. 3.9 meters long allows you to use engines with a capacity of 5 to 18 horsepower, but the choice depends on your goals. 9.9 hp This is the "gold standard", allowing you to easily bring the boat to plane and reach speeds up to 25-30 km / h.
If you plan to ride threesomes or often go on the wave, it makes sense to consider options in 15 hp More powerful engines (18-20 hp) can already be redundant for this length of the body, unless you are chasing speed records with minimal load.
Do I need to register the engine?
According to Russian legislation, motors with a capacity of more than 8 kW (approximately 10.8 hp) are subject to registration. However, if the total power of all engines on the boat exceeds 8 kW, or the weight of a curbed vessel with an engine exceeding 200 kg, registration is mandatory regardless of engine power.
When choosing between a two-stroke and a four-stroke for a Trier 390 boat, the two-stroke option most often wins: it is lighter, which is critical for carrying and mounting on a transom, and cheaper to maintain. The four-stroke motor is more economical and quieter, but its weight can significantly shift the center of gravity of the boat on the stern, worsening driving performance.
- 🚀 9.9 hp - the best choice for two, easy transportation, access to plane.
- ⚖️ 15 hp - choice for three people or difficult swimming conditions, confident ride on the wave.
- 🔇 4 bars For those who appreciate peace and economy, and are willing to put up with more weight.
It's also important to pay attention to the length of the daydwoot. Inflatable boats are usually good for a standard long leg (Long Shaft), but when you install the motor on the Trier 390 transom, it's worth checking whether the anti-cavitation stove is too high or low relative to the bottom. Proper installation of the motor is the key to efficient operation of the screw and fuel economy.
Operation, assembly and care
The Trier 390, especially the BNDT variant, is assembled quickly enough, but requires a certain sequence of actions: the first is always pumped the quilson (if it is separate) or bottom, then the cylinders. It is important not to pump the compartments in the sun, since the air expands when heated, which can lead to rupture of the seams. The recommended pressure is usually 0.2-0.25 atm (200-250 mbar).
After each operation, especially in salt water or muddy water bodies, the boat must be rinsed with fresh water. Sand stuck between the floorboards or under the stringers works like an abrasive and quickly wears out the PVC fabric. Drying before packaging is a prerequisite for a long life of the product. Even a slight humidity inside the rolled-up boat can lead to mold and an unpleasant smell that is difficult to get rid of.
☑️ Checklist after fishing
Storage should be spread out or loosely twisted, away from heaters and direct sunlight. The optimal storage temperature is room. If the boat is kept outdoors, be sure to use a UV-resistant protective cover to prevent degradation of the shell material.
⚠️ Warning: Never use aggressive solvents, acetone or chlorine-containing agents to clean PVC. This destroys the polymer layer and makes the fabric sticky. Use only specialized chemistry or soap solution.
Regular inspection of valves and gluing sites will help to identify minor defects at an early stage. If you notice that the boat has begun to deflate faster, use a soap solution to look for micropunctures. Repair of minor damage is possible on your own with the remix, which usually comes with a boat.
Comparison with competitors and modifications
In the 4-meter-long inflatable boat market, the Trier 390 competes with models such as the Flagship 380/400, Hunter 380, Aqua 390, and others. The main difference is often in the details of the shape of the inflatable keel, the number of inflatable compartments (cylinders) and configurations. Some competitors offer wider cockpits, others - reinforced transponders for more powerful engines.
Trier's modifications can be different in terms of the type of mounting of the cans (seats); fixed cans are more reliable, but limit space; lightweight lyctross seats allow you to transform the space to suit your needs, for example, to accommodate a sonar or fishing boxes; and versions with increased inflatable tubes, which increases buoyancy but reduces the usable area of the cockpit.
When comparing boats, look not only at the length, but also at the inner width of the cockpit, and two centimeters of difference in diameter can significantly reduce leg space.
The pricing is very flexible in this segment. Budget options often save on fittings (handles, valves) and fabric density. Higher-end versions can offer enhanced translatum, integrated anchor mounts and improved ergonomics. The choice should be based on the frequency of use: for rare trips once a month, and basic equipment is suitable for active use, it is better to invest in a more reliable option.
- 🏆 Flagship 380/400 - a direct competitor, often praised for the rigidity of the design and driving qualities.
- 🛶 Aqua 390 Known for its affordable price and simple design, popular with beginners.
- 🔩 Furniture Pay attention to the brand of handles and valves, this is an indicator of the overall quality of the assembly.
Ultimately, the choice between Triera and its counterparts often comes down to the availability of service and parts in your area, as well as the subjective experience of boarding a boat, and the best way to decide is to visit an exhibition or a store to sit in different models and evaluate them by touch.
The main criterion for choosing between competitors is not only the price, but also the quality of accessories (pens, valves) and the availability of remixes in your region.
Results and recommendations for purchase
The Trier 390 has proven to be a reliable and versatile boat for a wide range of tasks, ideal for amateur fishermen, hunters and families planning outdoor activities on the water. The combination of good load capacity, the ability to install an engine up to 15 hp and relatively compact size in assembled form makes it one of the leaders in its class.
When buying, be sure to check the kit: the availability of a remix, a pump (if it is included in the set), bags, packaging and documents. Make sure that the seller is an official dealer or provides a guarantee for seams and materials. Remember that the stingy pays twice: a cheap boat made of thin PVC can require expensive repairs after the first season of active operation.
Proper operation, the right choice of engine and timely care will allow you to enjoy water trips for many years. Trier 390 is an investment in your comfort and safety on the water, which, if approached correctly, will fully justify the investment.
Do I need to register Trier 390 boat in GIMS?
Registration is required if the weight of the outfit vessel (boat + engine + equipment) exceeds 200 kg OR if the installed engine power is more than 8 kW (about 10.8 hp). If you have a light engine up to 10 hp and a boat without equipment weighs less than 200 kg, registration may not be required, but it is better to have documents confirming the weight and power.
What pressure to pump into cylinders in the summer?
The recommended working pressure is 0.2-0.25 atm. In the summer, in the sun, the pressure inside the cylinders increases. So pump the boat to the lower limit (0.2 atm) or even slightly less if it lies in the sun for a long time. Excess pressure can lead to deformation of the seams.
Can I use Trier 390 for an overnight stay?
Yes, 3.9 meters long allows two adults to sleep, especially if you use an inflatable floor modification (BNDM), but three people will be crowded to sleep comfortably, and it is recommended to use special inflatable mattresses or sleep directly on cylinders with a mat spread out.
How long does a PVC boat last?
With proper operation, storage in a warm room and the absence of mechanical damage, high-quality PVC lasts 10-15 years or more. The main enemy of the material is ultraviolet light and an improper fold during storage (cloth fracture).