Choice floater For a low-power engine, it's about balancing mobility, comfort and speed. A 9.8 horsepower engine is considered a middle ground for many anglers and hunters, because it allows you to achieve decent speed, but it doesn't require registration with a GIMS if the total weight of the curb vessel does not exceed 200 kg. compact but spacious modelsThey can withstand the weight of the engine, fuel, passengers and equipment.
But, buying PVC It is important to consider the length of the vessel, the design of the bottom and the density of the material. The wrong choice can lead to the fact that the boat will “scour” at the course, poorly go to the planing or, conversely, the engine will work idle without giving the desired thrust. In this article, we will discuss in detail the technical nuances that will help you avoid mistakes when buying.
Many beginners mistakenly believe that the more powerful the engine, the better, but for the better. 9.8 hp Aerodynamics and hydroacoustics are critical. If the boat is too light or has the wrong shape of cylinders, it will jump on the wave even with minimal wind. On the other hand, an overly heavy hull will require a full load to go to the plane, which is not always convenient for a quick walk or fishing. The key parameter is not just length, but the ratio of length to width and the shape of the redans on the inflated bottom.
Technical requirements for the body for the engine 9.8 hp
For efficient use of the engine capacity of 9.8 horsepower length PVC The stern should be at least 320 cm, although the optimal range is considered to be 340-360 cm Smaller dimensions will lead to the fact that the transom will be constantly filled with water, and the different at the stern will not allow the vessel to go to the sleeve. At the same time, putting such a motor on a boat longer than 380 cm often does not make economic sense, since the speed is unlikely to exceed 20-22 km / h.
Particular attention should be paid bottom-pieceFor a motor of this power, a flat inflatable floor (BBB) is only suitable for calm water and fishing in standing water. If you plan to move along the river with the current or go out into open waters, you need a hard floorboard (aluminum or plywood) and, preferably, the presence of an inflatable keel. The keel provides course stability, which is critical when installed. 9.8-horsepower engine.
transom is another node that requires more control. Motors up to 10 hp often have an increased weight compared to 2-horsepower counterparts, so cross-board The weak transom can bend under the weight of the engine, changing the angle of the engine and reducing the efficiency of the screw. Also important is the height of the transom: the standard is 381 mm (15 inches), but for some boat models, it may be necessary to adjust the position of the engine with the help of spacers.
⚠️ Warning: Never exceed the maximum power of the motor specified in the boat's passport. Installing 9.8 hp on a boat designed for a maximum of 5 hp can lead to the destruction of the transom and the boat tipping over at high speed.
The density of the PVC material also plays a role. For the 9.8 hp motor, it is recommended to use a fabric density of at least 850-900 g / sq.m. Thinner materials (750 g / sq.m.) may not withstand constant vibration and tear loads when entering the planing. PVC reinforced It provides the necessary rigidity of cylinders, which directly affects the speed.
Load capacity and weight distribution
One of the most critical parameters in the selection PVC The 9.8 hp engine is a payload capacity, with an average weight of 25 to 35 kg (depending on the manufacturer and the availability of the electric starter), to which you must add the weight of the full tank (about 10-15 kg), the weight of the boatmaster, passengers and equipment.
There is a common misconception that maximum passenger capacityThe buoyancy is what the manufacturer says is true for any engine. It's not. When you install 9.8 hp, the real payload is reduced, because a lot of the buoyancy is used to keep the heavy engine and fuel afloat. If the boat is overloaded, it won't go into plane, but will go in displacement mode, consuming more fuel and creating a high wave.
For comfortable operation with a 9.8 hp engine, the total load capacity of the boat should be at least 450-500 kg. This will allow you to take on board two people of average build, an engine, a battery, an anchor and fishing gear, remaining within safe draught.
The weight distribution of the cockpit also affects driving performance. Centre of gravity If the weight is shifted to the nose, the boat will burrow in a wave. If it is at the stern, there will be a risk of water flooding the transom. floppy-boatThey are more sensitive to differentiation.
Review of popular models of boats for an outboard motor 9.8 hp
The inflatable boat market offers many options, but not all of them are equally well combined with engines with a capacity of about 10 hp The leaders in this segment are traditionally models with a length of 340 to 360 cm with a hard or combined bottom.
Model series Flagship and Mev. They are often chosen for their reliability and availability, they are equipped with a reinforced transom and have good cylinder geometry, which allows you to confidently go to the plane with one person on board, but when fully loaded, their speed can fall, which is typical for the budget segment.
The more premium segment is represented by boats Solaris and BadgerThey're distinguished by the use of better PVC and sophisticated hydrodynamics, like the low-pressure inflatable floor (LDP) Solaris 340 or 360, which is doing great, because the bottom is similar to plywood but weighs less, and it allows you to gain speed faster.
Hidden features of popular brands
Some Chinese OEMs sold under different brands may have thinner gluing seams. Always check the warranty and availability of service centers in your area before buying an expensive model.
It is worth mentioning the boats with balloonModels like some versions WinBoat Or specialized modifications of other brands, have a bevelled nose that better dissects the wave. For the engine 9.8 hp, this gives an increase in speed of up to 2-3 km / h compared to the classic round balloon.
specifications comparison table
To simplify the choice, we have prepared a comparative table of popular sizes of boats suitable for installing the engine 9.8 hp Pay attention to the difference in load capacity and assembly time.
| Model/Type | Length, cm | Load capacity, kg | Boat weight, kg | Recommended engine, hp |
|---|---|---|---|---|
| PVC 320 (NDND) | 320 | 400-450 | 35-40 | 5-9.8 |
| PVC 340 (Pyol) | 340 | 500-550 | 45-50 | 9.8-15 |
| PVC 360 (NDD) | 360 | 600-650 | 40-45 | 9.8-18 |
| PVC 380 (Pyol) | 380 | 700-800 | 55-60 | 15-20 |
The table shows that boat-boat The hard-floorboard model is the most versatile choice, with a payload capacity of 9.8 hp and two passengers, while remaining light enough to carry. 320 cm models can be cramped for two with a hard-floorboard engine, and 380 cm are already overpowered if you don't plan to carry large loads.
The weight of the boat itself also plays a role. If you plan to often disassemble and assemble the boat alone, the models will be the most important. NDNDM (inflatable floor) They're preferable because they're lighter and more compact when folded, but for heavy-motor water, the solder versions are more durable.
Operational and safety nuances
Operation PVC You have to follow certain safety rules with a 9.8 hp engine, and first of all, you have to keep the engine fastened, you have to use only high-quality rods, and you have to have extra insurance with the transom fracking, and the vibration is high at these speeds, and the spontaneous loosening of the fastener is a real danger.
The second important thing is cylinder pressureBefore going out, especially in hot weather, you need to check the pressure. In the sun, the air expands, and the pressure can rise to critical values, which will lead to rupture of the seams. At the same time, under-performed cylinders reduce the rigidity of the body, increase water resistance and fuel consumption.
☑️ Checking before getting on the water
Don't forget. HIMSAlthough a motor of up to 10 hp often avoids registration if the total weight of the curbed vessel (boat + engine + equipment) exceeds 200 kg, registration is mandatory. Weigh your boat with the engine and tank at home to know exactly if you need to get a boat's ticket.
⚠️ Warning: When operating a 9.8 hp PVC boat, always carry oars. In case of engine failure or damage to the screw against a snag, paddle in a sliding boat is difficult, but this is the only way to get back to shore.
Tuning and modernization to improve comfort
Owners PVC They often use tuning to make the 9.8 hp engine more comfortable. One of the most useful additions is the installation. transom-wheelGiven the weight of the motor, dragging a boat along the shore without wheels is a hard physical labor.
It is also worth considering the installation. fish-box Not only is it convenient to store things, it also acts as a ballast, improving the performance of the boat when driving with one person on board, and properly positioned cargo in the nose helps the boat to go on the plane easier.
Use silicone lubricant to treat lightning on protective covers and seals, which will prolong their lives and prevent them from catching at the most inopportune time on fishing.
The extra protection of cylinders from petrol and oil spray will also not be superfluous. 9.8 hp motors are often two-stroke, and a mixture of oil and gasoline can damage PVC on prolonged contact. spray-spray or the use of special plates on the transom will preserve the material of the boat.
Competent tuning of PVC boats increases not only comfort, but also safety of operation, shifting the center of gravity and protecting expensive materials from damage.
Frequently Asked Questions (FAQ)
Do I need to register a PVC boat with a 9.8 hp engine in GIMS?
Registration depends on the total mass of the boat in running order: If the weight of the boat, engine, fuel tank and minimum set of equipment exceeds 200 kg, registration is mandatory. If the weight is less than 200 kg and the engine power is not more than 10 hp (8 kW), registration is not required.
What speed does a PVC boat with a 9.8 hp engine develop?
The average plane speed is 25-30 km / h with one person on board. With a full load (2 people + cargo), the speed can decrease to 20-23 km / h. The exact figures depend on the shape of the bottom, screw and water condition.
Can I put the engine 9.8 hp on a boat designed for 5 hp?
The trawler and seams of a 5 hp boat may not withstand the vibrations and loads of a more powerful engine, posing a risk of collapse at high speed and threatening the lives of people on board.
Which screw is better to choose for a PVC boat under 9.8 hp?
For PVC boats, large pitch and diameter propellers, often called "plane" or "speed propellers," are optimal. They allow better use of engine traction. A standard propeller complete with a motor may be too "heavy" for a light boat.
Choice PVC boats for an outboard motor 9.8 hp It's an investment in years of enjoyable water, and a well-designed model will provide reliability, safety and pleasure to operate, and don't skimp on the quality of the material and the design of the bottom, and your craft will last for years.