Many deep water fishing enthusiasts prefer to install motors on boats. Making an electric boat motor with your own hands is quite simple and cost-effective. This is caused by the high (one might even say prohibitive) cost of modern boat engines. The price of some is comparable to the cost of a car. It is not profitable to purchase an old outboard motor that has been used frequently. It costs a lot, but bringing it into working condition will require a lot of effort and money.
A boat electric motor can be purchased either in a specialized store or made on your own from various devices and tools.
Operating principles of electric motors
Despite the development of technology and production, a boat motor remains a rather expensive thing that not every owner of a small boat can afford. The lower price limit for the cost of a new motor is about 30,000 rubles, while the upper limit can reach the same figures, only in dollars. Therefore, a homemade electric motor for a boat based on electric motors from various household devices is good decision which will save money. In addition, you will gain good experience in design.
Electric motors have a number of advantages over other types of motors:
- The electric motor is the most common type of motor and can be found almost everywhere.
- They make little noise when operating (compared to internal combustion engines), which is especially important when fishing.
- They are safe to use. Low probability of fire, do not explode.
- Cheapness. Asynchronous electric motors- the cheapest engines that exist.
Disadvantages of electric motors:
- The electric motor is afraid of water; accordingly, it should not be in water and should not be flooded.
- The speed when sailing on a boat with a motor should be about 7-10 km/h under load. Therefore, the minimum engine power should be at least 1.75-2 hp.
- You should think about power sources in advance. Since the electric motor requires electricity, you should purchase batteries in advance and prepare a place in the boat for their installation. If you have the funds, you can purchase a generating solar panel that can be installed on top of the batteries and connected to them. Important: a solar panel should not be the only source of energy, it should work in conjunction with batteries (which may be the only sources of energy). You should take into account the weight of the batteries (they are quite heavy) and after installing them, do not overload the boat.
- Determine the operating conditions. For example, speed will naturally drop if you swim against a current or wave, or in a strong headwind. It is important to determine the purpose of installing the engine. If the main goal is to sail “race” with other boats, then an electric motor will not be suitable for this purpose. If sailing under unfavorable conditions (wind, waves, currents), you should take an engine with a power reserve.
When the necessary technical requirements, you can proceed to the implementation of the project. It's worth starting with calculations.
How to calculate parameters
The first thing you should pay attention to when calculating engine power is the conversion of units of measurement from one system to another. Often, when calculating the power of a propulsion system on boats, horsepower is used, and the power of all electric motors is indicated in watts. To convert watts to hp. it should be remembered that 1 kW = 1.36 hp. or 0.74 kW = 1 hp.
To calculate power, please refer to GOST 19105-79. To calculate power, you should measure the length of the waterline, deadrise, side height and the maximum possible weight of the boat (weight of the boat + weight of all passengers + weight of the engine, power supplies + weight of equipment and equipment). The 1 HP formula will work for most boats. per 25 kg weight. For punt, PVC and planing boats, the calculation formula is 1 hp. for 35 kg of weight. For example, consider the option with a two-seater PVC boat.
The weight of the boat is about 25 kg. Weight of 2 adults: 80x2 = 160 kg. The weight of the motor and batteries is about 20 kg. In addition, the weight of the equipment is about 15 kg. The result is: 25 + 160 + 20 + 15 = 220 kg. Motor power is 220/35 = 6.3 hp. Let's convert horsepower to watts: 6.3 * 0.74 = 4.66 kW.
Capacity battery is calculated using the formula: P/(Ux0.7), where 0.7 is the battery charge coefficient (since it will not be possible to charge the battery 100%). Actually, for 5 kW and 12 volt power supply, 5000/(12x0.7) = 595 Ah is required. Let's round it up to 600. This battery will keep the engine running for 1 hour. If there is no battery of such capacity, then you can take 2 x 300 A*h, 3 x 200 A*h or 6 x 100 A*h and connect them in parallel. If you need to ensure engine operation for more long time, then we multiply the resulting ampere hours by the number of working hours.
Necessary materials
When the calculations are made, you need to prepare everything necessary tools and materials. To make a motor you will need:
- Electric motor. It can be dismantled from various household tools or purchase from repair shops household appliances. Engines from a screwdriver, drill, grinder, circular saws etc. If the power of the selected engine is less than necessary (for example, if you take a screwdriver engine), then you should take 2 or 3 pieces of the same power from several screwdrivers. Several pieces should be connected in parallel, and it is not necessary to mount them on one bracket.
- Batteries. Selected by ampere hours. How to do this is described above.
- Materials for the bracket. Can be any. It is recommended to use PVC pipes as they are cheap, durable and easy to work with.
- Gearbox. Can be used from household appliances or purchased separately.
- Screw (propeller). You can remove it from an old Soviet fan (models with steel screws) or make it yourself.
- Speed controller. There is no point in installing it on such a vessel, but if you wish, it is worth purchasing a mechanical one.
- Clamps. Several pieces for attaching the bracket to the boat.
- Consumables: glue, self-tapping screws, screws, tape, etc.
How the work is carried out
The first thing to do is attach it to the boat. It is made from clamps to which clamps are welded under PVC pipes so that the clamp of the clamp is fastened to the side of the boat. A PVC pipe must be inserted into the clamps, inside which there will be a shaft. The length of the pipe depends on the height of the side and should ensure that the propeller is immersed below the waterline (preferably with a margin of 10-15 cm) and raise the engine to a height inaccessible to waves. The diameter of the pipe must ensure free movement of the shaft. As a shaft, you can use any rod (preferably stainless steel) with drilled holes at the ends. Such a transmission shaft can be mounted on the engine shaft and on the propeller axis without transmission links. It is important to seal the lower end of the pipe with a sleeve.
Next you need to tackle the underwater part. Should be used PVC pipe larger diameter(preferably a tee), in which a gearbox with a propeller shaft is installed. It must be attached to the rack by soldering to ensure a tight connection. The ends of the pipe with the gearbox installed are sealed with bushings or a thick layer of silicone (the first is preferable).
The propeller shaft outlet should be sealed. Next you need to connect the upper and lower gearboxes with a shaft.
At the final stage, a structure is made for installing the engine and gearbox (upper). The structure for installing the engine must be sealed on the water side (so that the engine does not flood), and on the boat side there must be ventilation holes and power supply. Its dimensions and shape depend on the size of the engine and how it is mounted.
With such a motor you can safely go out into calm waters or calm seas.
At one time, when King Hammurami still lived, he argued that the time spent fishing is not included in the calculation of the total life time. This is also confirmed by many citizens who like to spend part of their free time fishing.
Usually, most of fishermen own a boat. Many boats, especially modern ones, are equipped with gasoline engines. And a boat without a motor, especially if you have to fish in the waters of a large lake, becomes a burden that requires enormous costs, effort and energy to move. And here you definitely need a motor: gasoline or electric - it doesn’t matter.
But still, Special attention should be given to the electric motor because:
- electric ones do not require either oil or gasoline to operate, which means there are no exhaust gases, which does not harm the environment;
- electric motors are smaller in size, lighter in weight and do not take up much space. This is especially true if you have to fish far away, and every kilogram excess weight always felt;
- they are much more economically profitable than their gasoline counterparts;
- modern designs are assembled using modern parts developed according to modern technologies, therefore, with minimal weight they have maximum power.
But these statements only apply if the boat owner already has an electric motor and has experienced such benefits to the fullest. But what to do if it is not there? This means you need to do it yourself.
Many enterprising boat owners use a drill or screwdriver that runs on batteries, since the industrial design of the electric motor is based on the same principle. The basic layout of such a unit is almost the same for all models and looks like this:
- the battery is the power source;
- the electric motor acts as a boat engine;
- a propeller with a gearbox is a working tool that allows the boat to move through the water;
- control unit - consists of a knob for turning the direction of movement and changing the speed of rotation of the electric motor.
Almost all elements can be found in an electric drill or screwdriver. In this case, one should take into account the fact that industrial devices have a sealed design, which allows the main components to be in the water.
If you use an electric drill, it is advisable that it be located away from water. This is the only problem, quite serious, that requires a technical solution. The slightest splash of water on the control unit can damage it, which will lead to the boat stopping.
Advantages of such a model
If you take an electric drill, you should always remember that its main value is the engine and the speed control unit (button). Choosing a drill or screwdriver has some advantages compared to buying an industrial outboard motor:
- In terms of price, this purchase will be much cheaper than purchasing a factory model;
- according to the law, it is necessary to adhere to the requirements related to the power of engines used on various bodies of water;
- the electric drill is powered by a battery or other power sources with suitable parameters;
- The electric drill is easy to repair, thanks to the availability of a sufficient number of spare parts on the market.
When choosing a drill, you should take into account the fact that it is mainly designed for operation in cyclic mode. If the drill is installed on a boat, then you need to count more on a continuous cycle of work. This means that you need a reserve of power, otherwise the drill will overheat.
In such cases, you should opt for a power of 150 W or more. The power reserve will allow you to work with a propeller with a diameter of 130-150 mm. In addition, you need to take into account that the total weight of the boat will be 300 kg, no more. We can assume that this is the maximum weight.
You should immediately pay attention to the fact that drills and screwdrivers are available in different operating voltages, such as 12 V, 14.5 V, 16 V, 18 V and 24 volts. Batteries are also produced for the same voltage. And yet, the capacity of standard batteries that operate an electric drill or screwdriver in classical conditions there is not enough work to ensure the necessary movement of the boat on the water. In this regard, it is better to pay attention to a car battery, which has a much larger capacity. And since a car battery produces 12 V under load, a drill should be selected with an operating voltage of 12 V.
Naturally, you can make a battery from a set of manufactured batteries for power tools for any voltage, but this can be much more expensive.
Required tools and materials
For such a device you will need the following parts:
- electric drill for motor;
- clamps for mounting the motor (drill). Both ready-made factory and handicraft ones are suitable;
- the gearbox from the grinder is suitable if the motor is installed on the transom of the boat;
- round tubes with a diameter of 20 mm and profiled tubes 20x20 mm. A rod and a mount for the motor (drill) will be made from them;
- a round metal rod from which the motor shaft will be made, as well as sheet metal for a propeller.
The following tools may be needed for work:
- metal scissors;
- welding machine, although you can do without it;
- electric drill and set of drills;
- grinder with cutting and grinding wheels;
- if the structure includes wood, then nails or screws (as well as wood).
The presence of a lifting mechanism radically simplifies the operation and maintenance of the entire system, especially since there are cases when it is urgently necessary to lift the propeller. As a rule, such a mechanism controls the position of the electric motor in all planes (vertical and horizontal).
As an option, we can propose the following design of such a mechanism: the motor is attached to the transom of the boat using clamps, which are rigidly fixed to the plate. The clamps are equipped with rings through which the tube is threaded, and the motor shaft is threaded through the axle welded in the center of the tube. This results in a very simple articulated joint that can provide normal motor control.
As far as we know, the drill is designed for drilling holes and has a high final speed, which is not acceptable for supporting the operation of a propeller, which operates at slower speeds. Therefore, in order to reduce the speed transmitted to the propeller, the installation of a gearbox is required. Sometimes you need 2 of them, depending on design solutions. The upper gearbox should reduce the drill speed from 1500 to 200-300 revolutions, which will ensure normal boat movement.
The lower gearbox is used for horizontal installation propeller When using a gearbox from an angle grinder, it is simply clamped in the drill chuck.
The manufacture of a propeller propeller begins by marking it on a piece of steel sheet. As mentioned above, its diameter should be no more than 130-150 mm. You can take a square of metal, 200x200 mm in size and 2.5-3.0 mm thick. It would be better if it was stainless steel, although it is much more difficult to process. IN as a last resort, you can use the impeller from the air exhaust fan or car cooling system. At the same time, it should be taken into account that the impeller profile is designed to work with an air mass. In this regard, you will have to start making it yourself.
A hole is drilled in the center of the square for the landing screw. Slots are made along the diagonals so that the sheet remains intact in the center up to 25-30 mm. After this, they begin to form the shape of the blades. As a rule, they have a rounded appearance. In this case, you need to ensure that the blades are the same size, otherwise there will be vibrations. After this, the blades are slightly turned to a certain angle. In this case, the direction of rotation of the blade must be taken into account.
Since manufacturing takes place at home and, as they say, in order not to break off in the water, tests should be carried out. Any container of water that will fit the propeller will be suitable for this. Naturally, the larger the capacity, the better. As a last resort, if possible, it is recommended to go out into nature, to a river or pond and test it in action without installing it on a boat.
When the engine is running, a directed stream of water should be observed and felt. In addition, no serious vibrations should be felt. If the propeller does not operate in full power, you can modify it by increasing the angle of the blades.
The motor control system is modified depending on the wishes of the boat owner. The main thing is that it is convenient to manage. It is better to move the engine speed control button to a convenient place.
The following components should be included in the calculations:
- weight of the boat when fully equipped;
- power consumption of the electric motor;
- current and operating voltage.
During the assembly process, you should take an electrical measuring device and make sure that the engine power matches the load power. The engine power must exceed the load power. It is desirable that the engine power overlaps the load power by at least 20%.
If the engine power matches the power consumed by the electric drill: if the power consumption, calculated by the formula P = 12V x Ipot, corresponds to the declared power of the engine (electric drill), then we can say that everything is done correctly and the electric drill can be used as a motor for a boat. At the same time, we should not forget about the 20% power reserve. It will definitely be needed in case of emergency situations.
During the setup process, it is better to experiment with the impeller to select the correct blade configuration. As a rule, their shape significantly affects the economics of engine operation.
Using the windshield washer motor
Some owners who decide to make their own electric motor for a boat use various 12V engines that are used on board the car.
Such engines are perfect for such functions, if only because they are designed to run on a car battery. Despite this, they require some improvement.
Boat owners are constantly experimenting and finding amazing solutions. The high cost of industrial designs forces them to do this. As a result, the idea of installing a lawn mower motor on a boat was born. These are engines with a power of about 6 hp, which are designed for long work under load in different conditions. Such an engine can be adapted to a boat if you use various spare parts intended for repairing Soviet boat engines.
Motor from the Ural-2 chainsaw
Some craftsmen easily adapted motors from Soviet chainsaws, as motors for boats. At one time, a huge number of chainsaws were produced, the quality of which needs to be discussed separately. Despite this, some motors installed on boats still serve today. The main thing is to calculate everything correctly.
Electric motor application
This is very interest Ask. The use of conventional AC motors has been discussed for a long time. Such motors do not have a brush mechanism, so they are very easy to operate and operate.
But there are some factors that have to be taken into account. The first factor is the presence of an alternating voltage of 220 V. Alternatively, it is possible to install an inverter that can convert a direct voltage of 12 V into AC voltage 220 V.
The second component is safety, because 220 V voltage is very dangerous for humans, especially on water. This requires special measures. But if there is water all around, it is difficult to even imagine what exactly these measures should consist of.
There is practically ready-made option– this is the use of a motor from a trimmer or from a lawn mower. Almost everything is ready here, all that remains is to decide on the length of the device and install the propeller. There is no need for an upper gearbox and no need to modify the control system or engine power supply system.
The main task is to similar device properly secured to the boat. This is especially true if there is inflatable boat.
Conclusion
The production of such structures is available only to those boat owners who are in constant creative search. On the other hand, most of the boats are owned by anglers who are constantly experimenting. Therefore, it will not be difficult for them to realize their ideas.
It is natural that self-production various designs engaged in creative people or people whose family budget does not allow them to purchase both a boat and a motor for it. Therefore, some fishermen still use oars and do not regret it. They are only satisfied with the fact that they have a boat, since there is another category of fishermen who do not have such a boat. They enjoy fishing from the shore and envy those fishermen who have a boat, although without a motor.
The need to convert a regular boat into a motor boat may arise due to various reasons. But here’s how to do this if the budget is limited and there is not enough money to buy a ready-made motor. There are many options that help you make a fully functional boat motor from scrap materials available in every home.
Motor made using a trimmer
Before you start making a homemade motor for a boat, you need to decide on the choice of base from which the engine and other parts important for assembly will be taken. In this case, a trimmer will be used. In addition to this option, there are many more that use everything, even an ordinary screwdriver.
However, the lawn mower wins in many respects, and the design of its engine is closest to the design of a purchased outboard motor. This is proven by drawings that many craftsmen compared before choosing what to take as a basis. homemade engine for the boat. And so let's look at:
- An engine that will save a huge amount of fuel (as the lawn mower is used frequently). Moreover, it can be four-stroke, just like on conventional motorboats. However, this happens very rarely and it is mostly two-stroke
- All manual gasoline mowers use a plastic and translucent tank, which allows you to constantly monitor the amount of fuel in it.
- The internal part of the design makes it possible to easily convert it to a boat motor without much strain
The main difficulty when converting a trimmer is that the mower's engine will not always be able to cope with movement through water. This is primarily due to different technologies operation of each engine.
On a gasoline mower it has a large number of rpm due to low torque. For a boat, the exact opposite is needed. However, this is easily fixed. But for this you definitely need tools (everyone has them) and drawings.
Basic list of tools required for work:
- The trimmer itself is the basis of the future boat engine. Since most often a homemade motor is made for a rubber boat, having a small weight and size, the power of the trimmer can be small - about 0.8 kW. Even such a small power can provide an average human speed of 5-7 km per hour. However, if the motor is made for a heavier and more massive boat, you should choose mowers with higher power
- A material that is ideal for making a screw (this can be done at home), most often it is duralumin with a thickness of about 2 mm
- A vice or any other tool that allows you to secure objects (in this case, a motor to a boat)
- Metal welding machine (any, but preferably semi-automatic)
Manufacturing process
Creating a boat engine based on the above materials can proceed in different ways. Either all the main components that must be present are purchased, or they are made on their own (not difficult) using scrap materials
Calculations must be made, which then need to be used to draw a drawing of the screw. It is made based on many parameters, the main ones being the size and weight of the boat.
It is easier and better to make a motor if you choose a lawn mower model that has a straight shaft. Otherwise, it will take a lot of effort and expense to convert a curved barbell into a straight one.
If the screw is made by hand based on calculations and drawings, then the edges must be sharpened well (almost to sharp corner). The propeller blades are usually made curved by approximately 10 mm. Since the material used is the same duralumin, in case of poor screw performance, you can easily bend it, since the material is very elastic.
The screw is placed in place of the trimmer head, which is removed when disassembling the mower. It is imperative to use a nozzle in the form of a ring, since it is possible that the blades at high speeds can damage or even tear the material of the boat (if it is rubber). Adapters that allow you to connect the main motor shaft to the propeller can be purchased on the Internet. They are very cheap.
A rope starter can also be used from a lawn mower. However, if they are uncomfortable to start, you can use a speed starter from an old bicycle. After all the assembly, it is enough to secure the resulting structure onto the boat itself with a clamp.
Quick assembly of a boat motor using a chainsaw
Using a chainsaw engine to make a boat motor is very effective solution. First, at the stage of disassembling it, you need to remove the tire and the pump that supplies oil to the chain, the lever that allows you to regulate the speed and the gas tank (not suitable due to the design of the motor).
Using PCB material, it is necessary to make a mounting point for the main part of the engine, in which the starter and the entire clutch mechanism will be located, to another part of the engine (this design will make the engine operate more efficiently).
In the very bottom part of the entire structure, it is necessary to insert a steel bushing using a press, which will be attached to the deadwood. The deadwood will be made from an inflatable boat oar (cheap), which is made of duralumin. The clutch responsible for the clutch must be connected through a special shaft to the gearbox.
The gearbox can be made from component parts grinder. It is filled with oil used to lubricate the car transmission. The structure is still fastened with a clamp or a vice. The steering wheel that performs maneuvers can be made from a duralumin pipe (the remaining part of the oar).
The speed bar from the bicycle can protrude behind the gas handle, as in the case of a trimmer. The propeller, as the main part of the motor, can be made in the same way as in the case of a trimmer, using duralumin. At the same time, the calculations carried out to determine the size of the screw remain the same.
According to the code of laws of King Hammurabi, time spent fishing is not included in the calculation of life time. Perhaps the ancient kings were right, but today it is not always possible to catch fish from one place.
But what if the use of gasoline engines is prohibited on a reservoir? Or when limited in time, and transport motor boat there is no opportunity, and you have to take advantage rubber boat?
As a rule, in such cases, a boat electric motor is purchased as part of the equipment.
Such motors for light and small boats are very useful because:
- electric motors do not use gasoline and oil, they have no exhaust gases;
- the electric drive is lightweight, compact, and does not take up much space;
- using an electric drive is more economical than a gasoline unit;
- As a rule, modern electric motors are designed using fundamentally different technologies and therefore, with small dimensions and energy consumption, provide maximum traction force with modest energy consumption.
But all these advantages apply to the case if the electric motor is available, but what to do when it is not?
Electric motor from a drill
As a way out of the situation, many reinforcers use a motor from a cordless drill or screwdriver. In fact, for both industrial propulsion and those assembled by handicraft, the main source of movement is Electrical engine.
The layout of such a motor is the same for all models:
- power supply– battery;
- engine– electric motor;
- working body– propeller with gearbox;
- Control block– in this case, the direction of movement is controlled by turning the handle, and the speed is regulated by decreasing or increasing engine speed.
In fact, a screwdriver or drill has all this. However, it should be taken into account that most electric boat motors have a propeller mounted directly on the electric motor. This entire structure has a sealed housing and is immersed in water.
But the drill does not have a sealed housing and therefore the layout of a boat motor with a gasoline engine, which is located at the top, is more acceptable for it.
Advantages of an electric motor from a drill
When considering an electric motor from a drill as a motor, you need to understand that the motor itself is of great value, but with a speed control unit, in other words, a button, its value increases several times.
But still, there are several clear advantages in choosing a drill or screwdriver:
- the cost of such a tool is several orders of magnitude lower than the cost of a factory outboard motor;
- legislation strictly monitors the use of motors on water bodies, while the power and type of engines, both permitted and prohibited for use on certain water bodies, are clearly regulated;
- the drill is battery-powered, and in addition to using a standard power source, it is possible to use other sources that are compatible in terms of parameters;
- The cordless drill, as a tool, operates almost silently, which is important for fishing enthusiasts;
- A drill, like any other tool, can be repaired if necessary; fortunately, there is a large selection of spare parts and parts for repair on the market today.
Required power
When determining the power of a drill for a boat motor, it is necessary to take into account that the design of the drill provides for its operation in an alternating cycle.
When the greatest load is carried out for a short time, as a boat motor the engine will work for a very long time, and at the same time experience very noticeable loads, which means it is necessary to choose a drill with a power reserve.
The most suitable for this option are models of power tools equipped with motors with a power of 150 watts and above.
This technical solution is associated with a power reserve when operating a unit with a propeller with a diameter of 130-150 mm, and designed to move a boat with a load of up to 300 kg, and 300 kg will be considered the maximum load for the motor.
Operating voltage
When starting to implement a project with a drill, probably the main point will be to select the appropriate unit for the operating voltage. Among the tool options presented today, the main ones are drills with voltages of 12, 14.5, 16, 18 and 24 volts.
Question the right choice The point here is that, like branded motors, drill motors will be powered by batteries. A standard battery included in a tool kit can, in principle, ensure uninterrupted operation of the drill for some time, but even modern lithium and cadmium batteries have a capacity that will clearly not be enough for normal trips.
Therefore, the only way out will be to use an additional source, and the most suitable would be a car battery.
Standard car batteries, even with a capacity of 45 amperes, will perfectly ensure the operation of the drill, and therefore the most acceptable option for boat electric motor there will be a 12 volt drill.
Required tools and materials
Since there are no two identical twin motors, given the experience of building similar motors, you will most likely need:
- drill– as a motor;
- clamps– the motor will be mounted on them; if there are no suitable factory ones, you can make homemade ones;
- gearbox– most often the gearbox is used from an angle grinder when the motor is planned to be placed directly at the transom of the boat;
- tubes, diameter 20 mm and square tubes 20x20 mm - for the rod and directly attaching the drill;
- metal rod– for the motor shaft;
- sheet metal for a propeller.
During manufacturing you will need the following tools:
- metal scissors:
- welding machine, although there are ideas to fasten the structure with rivets, but the welding connection will be much more reliable and faster;
- the same drill, with a set of drills;
- grinder, sharpening and cutting wheels;
- in case of use in construction wooden parts then nails and screws.
Lifting mechanism for impeller
The use of a lifting mechanism in the motor allows not only to control the movement of the boat, but also, if necessary, to raise the propeller above the surface of the water. Ideally, such a device should provide rotation of the screw in both horizontal and vertical planes.
The simplest and at the same time the most effective design could look like this: a motor is attached to the transom of the boat using clamps. The clamps are rigidly attached to a plate or square, and have rings into which a tube is threaded with a guide welded to the middle perpendicular to the axis, into which the motor shaft is threaded.
This hinged solution is quite simple and does not require additional, complex solutions.
How to catch more fish?
I have been active fishing for quite some time and have found many ways to improve the bite. And here are the most effective:- . Attracts fish in cold and warm water with the help of pheromones included in the composition and stimulates her appetite. It’s a pity that Rosprirodnadzor wants to impose a ban on its sale.
- More sensitive gear. Reviews and instructions for other types of gear can be found on the pages of my website.
- Lures using pheromones.
Gearbox installation and propeller manufacturing
Despite the fact that a drill is a tool designed for drilling holes, that is, to overcome the resistance of another material, using a drill as a boat motor has its own characteristics, and this, first of all, is that during operation the propeller will be constantly in the water, and, This means that high drill speeds are not needed at all.
To reduce the number of revolutions, gearboxes are used. Most often, two gearboxes are installed - the upper gearbox reduces the number of revolutions of the drill from 1340 to 250-300.
Such revolutions are enough for the boat to move confidently. And the lower gearbox is installed to install the propeller perpendicular to the shaft axis.
If you use a gearbox from an angle grinder, then the upper end of the shaft is simply clamped into the drill chuck.
The manufacture of a propeller or impeller begins with marking a sheet of metal.
A square of 300x300 mm and a thickness of 2.5-3 mm is quite suitable for making a screw. However, any impeller can be suitable for a propeller, for example, from a car cooling system or a household exhaust fan, but in order for it to be a real propeller, you will still have to make an impeller.
A hole is drilled in the middle of the sheet to fit onto the gearbox bolt. Slots are made along the diagonals, not reaching the middle of the sheet 25-30 mm, the resulting blades are given a rounded appearance and the weight is adjusted - the blades must be identical and not create beating or vibrations. The blades are slightly rotated to create the required flow.
Improvements to turns and controls
Like any design solution, the motor design will need to be improved, and the finished motor will require certain skills, so you will have to go through a short training course.
For testing the sample, any container with water into which the propeller can be immersed will do. After turning on the device, a directed stream of water should be felt from the immersed screw. To achieve the greatest effect, the propeller is modified.
The motor control is modified depending on the wishes of the owner; most often the power button is moved to an external handle, providing an increase in the turning arm. At the same time, you need to get used to controlling the engine by adjusting the engine speed.
How to correctly calculate the loads and what should happen?
When carrying out calculations, it is necessary to build on the following data:
- weight of the boat in running order;
- engine power consumption;
- current strength;
- voltage.
When designing a motor, it would be useful to use an electrical measuring device to measure the voltage under load and during idling.
If the declared engine power corresponds to the power consumption calculated by the formula:
If power consumption = 12v * current under load, then we can confidently say that the electric motor is selected correctly.
It is possible to influence the engine power by choosing the right propeller impeller; in any case, a well-chosen impeller will significantly reduce engine heating.
Application of windshield washer motor
In the design of boat motors, electric motors from cars are often used, for example, motors from a windshield wiper or radiator. Such electric motors have a standard 12 volt, and are ideal for use with a car battery.
The windshield washer motor is largely suitable for designing a boat motor. It is small, it can be used with a car battery, but requires additional modification.
Motor based on a gas mower
Design ideas do not stand still, and a completely normal solution is to try to use a lawn mower engine as a motor. Unpretentious 6 hp engines designed for long-term operation in various situations. entirely allows for the creation of a boat motor using structural elements boat motors of the Soviet period.
Motor from the Ural-2 chainsaw
Until now, many craftsmen use internal combustion engines from Soviet chainsaws. It’s not worth talking about the quality and reliability of such engines, because they are too different conditions Many units had production and operation problems.
Some were made in bulk before the quarterly bonus, others for defense orders, but the engines that have survived to this day have one common problem. Today there is a real question about the production of motor gasoline and motor oil used for them. At the same time, boat motors assembled on the basis of motors from the Ural-2 chainsaw are reliable and unpretentious in everyday life.
Electric motor application
Separate interesting application For boat motors, the topic is using conventional electric motors as engines.
Modern technologies, in principle, make it possible to use engines direct current for 36 and 127 volts as motors.
Sometimes there are thoughts about using other 220-volt engines on small boats.
One of the obstacles to the implementation of such projects is the need for power supplies and inverter converters, which produce 220 volts of alternating current from 12 volts of battery voltage.
A alternating current 220 volts on a small boat sooner or later ends in tragedy.
Homemade boat motor from a trimmer
The most promising from the point of view of construction is the constructive solution of the application gasoline engine from a brush cutter or trimmer. Its big advantage is ready-made solution the upper gearbox, engine power supply and control systems do not require modification.
Almost all the parts are already ready for use; it is simply necessary, when using such a motor with a rubber boat, to improve the mounting design and use the appropriate length and carrying capacity of the boat.
Conclusion
Having considered everything possible options using engines of different purposes, having assessed their positive aspects and problematic aspects, it is necessary to supplement the set of laws of the ancient Assyrian kings, which does not count the time spent in creative searches.
After all, the possibility of using an engine from a trimmer or windshield washer as a boat motor is within the capabilities of only those who are in love with creativity and who want to realize their dream.
How long has it been since you had a really BIG CATCH?
When was the last time you caught dozens of HUGE pike/carp/bream?
We always want to get results from fishing - to catch not three perch, but ten kilogram pikes - what a catch! Each of us dreams of this, but not everyone can do it.
A good catch can be achieved (and we know this) thanks to good bait.
It can be prepared at home or bought in fishing stores. But stores are expensive, and to prepare bait at home, you need to spend a lot of time, and, to be fair, homemade bait does not always work well.
You know that disappointment when you buy bait or prepare it at home and only catch three or four bass?
So maybe it’s time to use a truly working product, the effectiveness of which has been proven both scientifically and in practice on the rivers and ponds of Russia?
It gives the same result that we cannot achieve on our own, especially since it is cheap, which distinguishes it from other means and there is no need to spend time on production - you order it, it’s delivered and you’re good to go!
Of course, it is better to try once than to hear a thousand times. Moreover, now is the season! This is a great bonus when ordering!
Find out more about the bait!
DIY boatMaking a boat with your own hands is only the first stage. You don't want to row it manually all the time, do you?
Stas comments:
This trimmer will quickly be reworked because it has no water cooling, but only air cooling!!! Judge for yourself soon it will be karachun!!!
Artem comments:
Who cares? The trimmer plows all day long without any problems, I mowed 40 hectares with it (I'm tired of it). And such alterations are driven around Ukraine in vain - they die from wear, but are restored by major repairs with rings.
Valera comments:
a screwdriver would be more likely to work here, since it is not intended for long-term work and heats up very quickly
Artem comments:
We rode on a motor made of no mows. Norm is rushing on an inflatable!
Igor comments:
just add a motor
ttt comments:
It just rattles like a tractor.
Peter comments:
Good afternoon. I am planning to buy a Haswing Osapian electric motor for fishing of this model: https://
What can you say about this company? Has anyone dealt with them, do they break badly and do they need to be serviced somehow? Thank you!
Sergey comments:
If you understand that your need is charitable assistance, then pay attention to this article.
Those who, without your participation, may lose an exciting business have turned to you for help.
Many children, boys and girls, dream of becoming pilots on the track.
They attend classes where, under the guidance of an experienced trainer, they learn high-speed driving techniques.
Only constant exercises allow you to overtake correctly, build a trajectory and choose speed.
Winning on the track is based on good qualification. And, of course, a professional kart.
Children who participate in clubs are completely dependent on adults, because lack of money and broken spare parts do not allow them to participate in competitions.
How much pleasure and new sensations children experience when they get behind the wheel and start driving the car.
Maybe it is in such a circle that not only Russian champions grow up, but even future world champions in this sport?!
You can help the children's karting section, which is located in the city of Syzran. They are in a really bad situation right now. Everything rests on the enthusiasm of the leader: Sergei Krasnov.
Read my letter and look at the photos. Pay attention to the passion with which my students work.
They love this developmental sport and really want to continue learning.
I am asking you to help the karting section in the city of Syzran survive.
Previously, there were TWO young technician stations in the city, and each had a karting section. There was also karting at the Palace of Pioneers. Now there is not a single station in the city, and the circle in the Palace of Pioneers was also destroyed. They closed it - it’s hard to say, they simply destroyed it!
We fought, wrote letters, and everywhere they had the same answer. About five years ago I went to the governor of the Samara region for a reception. He didn’t accept me, but my deputy accepted me.
After that, we were given premises where we were based. We have a lot of children who want to go karting, but very poor material conditions do not allow us to recruit children.
And most of the karts require repairs. This is the situation our circle is in.
We also turned to the mayor of the city of Syzran for help. This is the second year we have been waiting for help. We decided to turn to you via the Internet for help.
Contact me, ADDRESS FOR PACKAGES, 446012 Samarskaya, 47, you can contact me through social networks SERGEY IVANOVICH write to xxUbahbi4xx@ Always, being on the wave of success, you need to do works of mercy, give alms. And if the Lord helps in difficult circumstances, then do not forget about gratitude afterwards. Then He will not forget about your needs.
