Choosing the right one power-boat It's a game-changer that can make chaotic rowing a precise, silent process. Many water-engineers underestimate the power of electric bows as being the lot of professional bass boats, but modern technology has made these devices available to owners of conventional PVC boats and small metal boats.
The main advantage bow mount The engine is about having complete control over the positioning of the boat, which is critical when fishing for spinning or trolling. Unlike the tubercle models mounted on a transom, the nose mount frees the back of the boat and allows the fisherman to stand face-to-face as he moves, having a perfect view of the water area.
In this article, we will discuss in detail the technical nuances that will help you not to go wrong with the choice of traction and length of the lower unit. anchorage Spot-Lock can be your main trump card in the wind, and how to correctly calculate the required battery capacity for a full day of running.
Key specifications: traction, lower unit and control
The first and most important parameter in the selection is tractionContrary to popular belief, thrust is not a direct analogue of horsepower and does not determine the maximum speed of a boat; its task is to effectively push a vessel of a given displacement. For light inflatable boats up to 3.5 meters in length, models with a thrust of 30-40 lbs are usually enough, while heavy aluminum boats will require 70-80 lbs and above.
Length lower unit If the lower unit is too short, the screw will be too close to the surface of the water, leading to cavitation, noise and loss of efficiency, especially in wave, on the other hand, an excessively long mine will increase water resistance and the risk of hooking to bottom obstacles.
The golden rule of installation: the propeller must be submerged in water at least 30-35 cm below the waterline when the boat is fully loaded.
Control systems are divided into three main types, each with its own advantages: the hand control is familiar to most, but limits the mobility of the angler, the foot control (pedal) allows you to free both hands to work with gear, and the radio control (control) gives you maximum freedom of movement on the cockpit, allowing you to control the motor from anywhere on the vessel.
- 🎣 tillerThe classic variant, which requires physical contact with the handle, is ideal for precise maneuvering in difficult conditions.
- 🦶 pedalWireless or wired system that allows you to control the speed and direction of the toe of the foot without letting the spinning out of your hands.
- 📡 DU remoteThe most modern variant, providing full control at a distance, often including autopilot functions.
It is also worth paying attention to the presence of digital managementUnlike analog models, where speed is regulated in a step-by-step or smooth manner but with loss of efficiency, digital motors (such as the Ulterra or Force series) are quieter, consume less power and have a smoother run.
Installation of PVC and aluminum boats: installation features
Installation power-boat For PVC inflatable boats, it is critical to use special platforms or boards that distribute the load and prevent damage to the cylinders. Hard fixation of the motor on the soft side is impossible and dangerous.
Metal and fiberglass boats are more fortunate to have regular seats or mounting systems, but even here, there are nuances: For example, when you install aluminum, you need to take care of the galvanic junction to avoid electrochemical corrosion in salt water.
☑️ Pre-installing check
Particular attention should be paid battery-blockThe battery is the heaviest part of the system, and improperly positioning it can disrupt the boat's differentiation, and heavy boats often have sealed boxes on their noses that simultaneously serve as a platform for the engine, ensuring the right center of gravity.
When PVC is installed, the boat often uses transition boards made of plywood or composite, which are attached with belts or in special pockets, and it is important that the board is rigid and does not bend under the weight of the motor and vibration when the propeller is working.
Battery system: calculation of capacity and types of batteries
The heart of any electrical installation is batteryFor boat electric motors, starter car batteries, which are designed for short-term high-current returns, are categorically not suitable. You need Deep Cycle batteries that can give off energy in low currents for a long time.
The most popular are lead-acid AGM and GEL batteries, as well as the more modern and expensive lithium-iron-phosphate (LiFePO4) models. AGMs are good for their affordability and safety, but they are heavy and fear deep discharge. Lithium batteries are significantly lighter, have almost twice the effective capacity and can discharge to almost zero without harm.
| Type of battery | Weight (approximate) | Duration of service (cycles) | Price. |
|---|---|---|---|
| Lead-acid (AGM) | Severe (25-30 kg) | 300-500 | Low. |
| Gel (GEL) | Severe (28-32 kg) | 400-600 | Medium |
| Lithium-iron-phosphate (LiFePO4) | Light (5-10 kg) | 2000+ | High. |
The capacity is calculated from the consumption of the motor. On average, a 55 lbs motor consumes about 50 Amps per hour at maximum speed. This means that a 100 Ah battery will provide about 2 hours of full power. However, in fishing, the motor rarely runs at its limit, so real time is enough for 6-8 hours of moderate trolling.
Why can’t you use a car battery?
Car starter batteries (WETs) begin to break down irreversibly when they are under 80%, and their plates crumble and their capacity drops after several cycles of use with an electric motor.
Functional: Spot-Lock, anchor and autopilot
Modern. electric motors These are complex electronic devices equipped with GPS modules. Spot-Lock (or Anchor Lock) allows you to lock the boat at one point with a meter accuracy, despite the wind and current, and the motor steers itself, compensating for demolition, which frees the angler from having to drop anchor.
This is especially useful when fishing at great depths or on a strong current, where a conventional anchor may not hold or it is difficult to lift. autopilot It allows you to plot routes on GPS tracks, which is ideal for trolling at verified points or returning to the start point in fog.
Some models have sonars embedded in the propeller, which allows you to see the bottom relief and fish directly on the screen of the motor head unit or on a connected cartplotter, and integrate with the Garmin, Lowrance or Humminbird marine cartplotters to make the motor part of a single navigation network.
- 📍 Track recording: Ability to save paths and return automatically.
- 🌊 Wave compensationSmart algorithms smooth out boat jerks on the wave, making the bait wiring uniform.
- 🔋 Energy conservationModes that optimize energy consumption to increase operating time.
Using these features requires precalibrating the compass and adjusting the boat's parameters. Without proper calibration, GPS functions may not work properly, steering the vessel away from the preset point.
Spot-Lock is not just a convenience, but a way to fish safely at depth without risking breaking an expensive anchor or losing position above a cool spot.
Care, maintenance and preparation for winter
Even the most reliable motorboat The main enemy of electricity is moisture and salt. After every fishing, especially in salt water, the motor must be thoroughly washed with fresh water. Pay special attention to the mine and the screw, where algae and sand can get stuck.
Lubrication of moving parts is another important aspect: lower unit turning points and attachment hinges require periodic application of silicone lubrication, which prevents the mechanism from souring and the appearance of creaks that can scare the fish.
⚠️ Attention: Never store the motor in the folded (uplifted) position if it is wet. Water can leak into the case through the seals of the shaft when the temperature changes. Always keep the motor in the working (down) position or completely dismantled.
Preparation for winter storage includes full battery charging (for lead batteries - every 2-3 months) and checking the condition of the brushes (if the engine is not alkaline).
The screw also requires inspection. Any chips or burrs on the blades reduce efficiency and create noise. Small damage can be sanded, but severe deformities require replacement of the screw.
Top mistakes in the selection and operation
One of the most common mistakes is to buy a motor. thrust-deprivedFishers often save money by taking the engine "back" on their passport, forgetting about the wind, current and additional weight of equipment, which results in the boat barely moving, and the battery is discharged instantly because the engine is running at its limit.
The second mistake is ignoring the length of the lower unit. As mentioned earlier, too short a shaft leads to the propeller's capture of air, which not only stops the boat, but can also damage the gears of the gearbox due to sudden load surges.
The third common problem is the use of substandard terminals and wires. The current consumed by the motor is large, and poor contact in the power chain causes heating, a drop in voltage and even fire. Use only copper wires with the section recommended by the manufacturer, and brass or tin terminals.
⚠️ Attention: Do not attempt to repair the head unit yourself by opening the body. Factory sealing is guaranteed to cause moisture and electronics to fail on the first dive.
Remember that electric motor A well-designed and installed system lasts for years, bringing the emotions of quiet and efficient fishing.
Can an electric motor be used on a strong current?
Yes, you can, but you have to choose a model with a thrust reserve, if the current is stronger than the maximum speed of the engine, the boat will demolish, and in such cases, the motor is used to adjust the course, not as the main driving force.
How long does it take to charge the battery after fishing?
Lead acid batteries are recommended to be charged immediately after use. A full charge cycle usually takes 8-12 hours. Lithium batteries can be charged at any time, they do not have a memory effect.
Do I need to remove the motor from the boat during transportation?
When transporting on a trailer along the road, it is better to remove the engine or securely fix it in the transport position so that the vibration does not damage the mounting units and electronics. For PVC boats, the engine is always removed before pumping / deflating.
Does the water temperature affect the engine?
Colder water is denser, which can slightly increase the load on the propeller, but modern motors are designed to operate over a wide range of temperatures, the main effect of temperature has on the battery capacity, which falls in the cold.