Choosing a power plant for an inflatable vessel is always about finding a compromise between power, weight and autonomy. PVC Often faced with a dilemma: buy time-tested petrol-engine Or move to a more environmentally friendly and quieter environment. electric motorThis choice directly affects where and how you can use your craft, whether it's high-speed waterways or silent trolling.
Modern technology has come a long way, and today traction-engine They can offer specifications previously available only to the ICE. petrol-assemblies They still hold the lead in terms of range and speed, and to make a good decision, you need to look at the technicalities of both options in detail, not relying only on the marketing promises of manufacturers.
Principles of work and design features
The fundamental difference lies in the source of energy and the way it is converted into motion. Gasoline engine It's a complex internal combustion mechanism where the chemical energy of the fuel is converted into mechanical energy through a pistons and crankshaft system, and this requires an exhaust system, a fuel mix tank, and a complex ignition system.
In turn, electric motor For a boat, it's basically a sealed electric machine that rotates the shaft directly or through a gearbox, and there's no explosions, there's no combustion, and there's a lot less moving parts. Electrical traction efficiency It can reach 80-90%, while in ICE this figure rarely exceeds 30-40% due to heat losses.
It is important to note that the design electric-motor It allows you to create a huge torque from almost the first revolution, and it gives you an instant response to the gas handle, which is especially valuable when maneuvering in narrowness. Gasoline enginesOn the contrary, they require access to working speeds for the development of maximum traction.
⚠️ Attention: The design of the deidvut (legs) of electric motors is often less durable than that of gasoline analogues. When hitting a hard obstacle (stone, snag), the risk of damage to the gear gears of the gear gear in the electrician is higher, if not installed a special cut pin.
Speed specifications and traction force
When it comes to speed, petrol-engine They usually win by a wide margin. To glid a light inflatable boat, it is usually enough to plane a power of 2-3 hp, which allows you to reach a speed of 20-25 km / h. Electric motors rarely able to bring PVC to plane due to current and voltage limitations of batteries.
The thrust of electric motors is measured in pounds (lbs), and to understand the ratio of forces, one can give an example: a 55 lbs motor is equivalent to about 0.7-0.8 hp This is enough for confident movement against the current, but not for high-speed walks. Power of the ICE It makes it easy to tow water skis or wakeboards, whereas electrics are designed solely for quiet movement.
But at a low rate. electric It's more predictable. It's not vibrational, it's a smooth torque pattern, it makes you feel better about the boat. Gasoline engine on singles can work unevenly, which creates difficulties when accurately anchored or when fishing in plumb.
Autonomy, range and operating time
This is perhaps the most critical parameter for many water engines. Gasoline engine It's limited only by the volume of the tank and the availability of a canister of fuel. The fuel consumption of modern two-strokes is about 300-500 grams per hour at idle, which allows you to spend a whole day on the water on 5 liters of mixture.
Electric motor It depends entirely on the capacity and type of battery, and a 100-Ah lead-acid battery with an average load of 30 percent gas will run out in 3-4 hours. LiFePO4 batteries It's more efficient, but it costs a lot more, and it takes 4 to 10 hours to charge a discharged battery at home, which makes it impossible to "refuel quickly" on water.
So, you can use a current-based formula to calculate your operating time, and if your motor consumes 20 Amps and your battery has a capacity of 100 AH, it'll theoretically sit down in 5 hours. depth It affects the battery life, so it is not recommended to use more than 70-80% of the capacity.
| Parameter | Gasoline engine (2 hp) | Electric motor (55 lbs) | Comments |
|---|---|---|---|
| Power source | Gasoline AI-92 + butter | Battery 12V (100 Ah) | Fuel is more affordable, the current requires a socket |
| Working hours (max) | 8-10 hours (by 5 l) | 3-5 hours (depending on traction) | ICE wins in autonomy |
| Weight of the power plant | ~10-12 kg (dry weight) | ~10 kg (motor) + 30 kg (AKB) | Electrics are heavier to assemble |
| Time to refuel. | 2-3 minutes | 6-10 hours | Critical for multi-day trips |
⚠️ Warning: Never leave a lead battery completely discharged, even for a couple of days, and this will lead to irreversible sulfation of the plates and a sharp drop in capacity, which will actually kill the battery.
Weight, dimensions and ease of transportation
At first glance, it may seem that electric motor lighter, because the unit itself weighs only 8-10 kg against 12-15 kg petrol-likeBut that's a misconception when you look at the system as an assembly: you need a heavy traction battery to run an electric car, which adds another 25 to 35 kilograms of weight, and the petrol version only requires a light canister of fuel.
Dimensions also play a role. Electric motor The gas "twins" or "treshki" are more compact, but require transportation in a strictly horizontal position to avoid leaking oil from the gearbox or crankcase.
For small car owners or those who carry a boat alone, weight becomes a deciding factor. battery It is separate, but it requires extra packaging and effort. Gasoline engine It is a water-based watering system that is easy to use (and easy to use) to water.
☑️ Pre-purchase check
Service, reliability and resource
In the category of reliability and ease of service petrol-engine Regular candle replacement, carburettor cleaning, fuel filter replacement, and preparation for winter conservation are all rituals. The mechanical part of the ICE is more complex, and therefore there are more potential failure points.
Electric motors The only thing to do is to keep the screw clean and periodically lubricate the glands.ESC) will fail, repair may not be possible or require replacement of the entire unit, which is expensive.
Resource petrol-engine With proper care, it's thousands of hours of motors. Electric motors are also durable, but their weakest link is the battery. LiFePO4 This is 2,000-3000 cycles, whereas lead batteries will survive only 300-500 deep discharge cycles.
The secret to a long battery life
To maximize the life of your lithium battery, try not to discharge it below 20% or charge it immediately after a cold winter fishing trip.
Ecological, noise and comfort of operation
Here. electric motor The lack of exhaust gases allows it to be used in enclosed spaces, caves or water bodies with no ICE operation. Silence of the course is the main trump card for anglers hunting cautious fish such as pike or perch.
The gasoline engine creates a characteristic noise and vibration that can tire you over a long day. The smell of gasoline and oil is also present, although modern catalysts and fuel mixing systems have significantly reduced harmful emissions.
The comfort of the controls also varies. The electrician doesn't have to pull the starter, adjust the pump, or wait for the heat to warm up. He turns the handle, and the boat floats. Gasoline engine It requires a certain amount of skill when launching, especially in cold weather, which can annoy less experienced users.
Tip: If you plan to use a boat in protected areas or night fishing areas where noise can interfere with others, an electric motor will be your only legal and ethical choice.
Economic feasibility and cost of ownership
In the initial purchase A gasoline engine may seem more expensive, especially when you look at new models from well-known brands. ligament (motor + high-quality traction battery + charger) often bypasses the ICE at a price of 1.5-2 times. Cheap Chinese electric motors without a brand can be competitive, but their reliability is in question.
Electricians have lower operating costs: a kilometer of electric travel is a penny compared to gasoline, but you have to consider the battery life: in 3-5 years, it will have to be replaced, which is a significant part of the initial cost of the system. Gasoline engine With good care, it lasts for decades.
Liquidity in the secondary market of the verified petrol-brand (Yamaha, Tohatsu, Honda) are very high. They're slowly losing value. Electric motors and especially used batteries are harder to sell because the customer is afraid of a hidden battery defect.
The final choice depends on the scenario: for high-speed walks and long hikes, only gasoline. For fishing in pressed places, night outs and short walks, an electric motor is ideal.
Can I use an electric motor on a large PVC boat?
Technically, it is possible if the boat is flat and not overloaded, but for boats longer than 3.6-3.8 meters and with a full load (2-3 people + equipment) the thrust of a standard electric motor (55-80 lbs) will not be enough to effectively counter wind and current.
Which battery is better to choose: gel or lithium?
For electric motors Lithium batteries (LiFePO4) They're 3 times lighter than lead, they give off current without subsidence until they're completely discharged, and they last 5-7 times longer. Gel and AGM batteries are cheaper, but they're heavier and faster to degrade at deep discharges, although they're safer if they're not used properly.
Do I need to register a outboard motor in GIMS?
Under current Russian law, small vessels with an engine of more than 8 kW (approximately 10.88 hp) are subject to registration. Most electric motors have a power significantly below this threshold (usually up to 1-1.5 kW), so they do not require registration and ownership rights, unless the boat itself also requires registration for carrying capacity.