Do-it-yourself jet ski - a practical guide with photographs

• 2 float jet ski

To assemble a jet ski from scrap material, and even with your own hands, you need to understand its structure. This bike is easier to assemble; it is designed on the principle of a catamaran. The design includes a seat, several floats, a lever, and controls. A float made from foam plastic is always of high quality; preference should be given to this material. You need to cover it with fiberglass with epoxy glue. It is better to lay five layers of durable fabric inside the floats, and three layers will be enough on the sides. How are jet skis made correctly to optimally distribute the weight of vacationers? It is necessary to place wooden frames in the places where the seat is attached.

• 3 float bike

To make floats you will need polystyrene foam, plywood ribs and a power fastener. Ski beams can become cross beams. Regular skis are suitable for this, as they provide load distribution. In addition to skis, steel pipes can be used.

• Classic jet ski

If you want to return to the classics, you should understand how jet skis of this type are assembled. This model is made without floats, but is not inferior in functionality. The structure is made in the form of a frame covered with plywood. To control, you can take the steering wheel from a motorcycle.

• Boat type bike
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Transport can be used for swimming or fishing. Diving enthusiasts can climb onto the hull without fear. Excellent stability will allow you to stay afloat even when a boat floats past. Reliability does not affect speed. You can use a powerful motor and put the unit on plane. This scheme will have one drawback - an expensive trailer.

Simple jet ski

The usual model includes a body, frame, stops, motor and stringer. Many jet skis use a transom. It is fixed on brackets. The filler is quite often used from foam plastic. Decks on models can be of different lengths. If we consider the upper stringer, it is installed with a fairing. You also need to remember that the bottom of the models is covered with a protective layer. The keel part of jet skis is distinguished by wide stops. There is a hole on the housing for the steering shaft. In case of breakdowns, you can repair the jet ski yourself using a small set of tools.

TOP 2: AQUARANGER SEA-DOO SEASCOOTER

Review

Family underwater tugboat. It is allowed to be used both in ponds and in swimming pools. Even children are safe with an underwater towing vehicle equipped with protection - metal bars, automatic shut-off and a buoyancy function.

The impressions of sailing with him cannot be compared with anything else.

Main characteristics

Despite its lower characteristics than its analogues, the underwater model is popular due to its ability to be used in swimming pools and its safety for children.

Price

An entry-level underwater tug is perfect for those who don’t mind diving with a mask and snorkel, for use in swimming pools. It has a camera mount, which makes it possible to take great photos,

What do you need to create a jet ski with your own hands?

The materials required to create a jet ski depend on the type of design.

To assemble a jet ski from scrap material, and even with your own hands, you need to understand its structure. This bike is easier to assemble; it is designed on the principle of a catamaran. The design includes a seat, several floats, a lever, and controls. A float made from foam plastic is always of high quality; preference should be given to this material. You need to cover it with fiberglass with epoxy glue. It is better to lay five layers of durable fabric inside the floats, and three layers will be enough on the sides. How are jet skis made correctly to optimally distribute the weight of vacationers? It is necessary to place wooden frames in the places where the seat is attached.

To make floats you will need polystyrene foam, plywood ribs and a power fastener. Ski beams can become cross beams. Regular skis are suitable for this, as they provide load distribution. In addition to skis, steel pipes can be used.

If you want to return to the classics, you should understand how jet skis of this type are assembled. This model is made without floats, but is not inferior in functionality. The structure is made in the form of a frame covered with plywood. To control, you can take the steering wheel from a motorcycle.

Transport can be used for swimming or fishing. Diving enthusiasts can climb onto the hull without fear. Excellent stability will allow you to stay afloat even when a boat floats past. Reliability does not affect speed. You can use a powerful motor and put the unit on plane. This scheme will have one drawback - an expensive trailer.

TOP 4: GTI SEA-DOO SEASCOOTER

Short review

This is another model from the same BRP company that snorkelers dream of. It is an amazing tool for divers diving from the shore.

Any distance is accessible with it.

Main settings

Price

A simple, very reliable and powerful underwater tug has proven itself to be an indispensable companion for beach lovers and deep-sea explorers, and is also deservedly appreciated by professional divers.

Model with fiberglass bonding

It is very easy to make a jet ski with fiberglass glued together. Stringers can be used in different lengths. At the beginning of the work, a board is prepared for the deck. It is recommended to sand the bottom well. Experts say that it is more advisable to use the upper stringer with a small profile. The end wall must be fixed at the base of the frame. Plywood for these purposes is suitable with the C5 marking. The covers on the jet ski are made of foam. Experts advise thoroughly cleaning the edges of the stringers. It is additionally important to carry out work on installing the steering column. For this purpose, the hole for the shaft is extended in the deck.

TOP 1: VS-SUPERCHARGED SEA-DOO SEASCOOTER

Short review

The stunning model topped the TOP 6. The underwater diving tug has successfully passed all tests and was recognized by the DSAT scientific center as the best for diving. It miraculously combines enormous power, maneuverability, and ease of operation.

Technical indicators

Price

Description

This underwater tug with a waterproof hull that prevents mechanical damage and leaks allows you to conquer new heights in diving.

The underwater tug, developed by Canadian specialists, opens up a new world for divers, providing them with a safe dive.

Author and editor of reviews on gadgets and new technology. Conducts work on writing new ratings for publications, checking the accuracy and relevance of information in already published articles. Answers questions in the comments, writes on auto topics.

Source

Steering - safety on the move

Modern models of technical equipment have an additional security system that allows the engine to start only if a special key is installed in the lock. This key is attached to the pilot's wrist or to his life jacket. In the event of a fall, the key is pulled out and the engine spontaneously stops working. Accordingly, the risk of colliding with something or someone is minimized.

The jet ski has become a popular technical tool at sea. It is used in entertainment programs and during water excursions. The simple design of a jet ski and its aesthetic appearance attracts people of any age and gender.

TOP 3: EXPLORER SEA-DOO SEASCOOTER

Review

The underwater tug, which occupies the next place in the TOP-6, differs from its analogues in that it has three speeds. It is designed for true professionals and technical diving.

Much attention is paid to safety. There is protection against leaks and overheating, an indicator that allows you to monitor the battery charge, and much more. With it, emotions will go “off scale”, and the world hidden by the thickness of water will open in magical colors.

Characteristics

Features of the underwater tugboat are:

Equipment

When using an underwater tug, air consumption is saved, which allows you to stay longer in the water depths.

Price

An underwater tug is ideal for classic snorkeling (with mask and snorkel), for amateur and professional diving.

Catamaran "Surf"

Catamaran “Surf” (pedal-driven pedal boat), designed for recreation and boat trips along inland waters and coastal areas of the seas.

• The drive and steering of the catamaran are made of stainless and galvanized steel. The shells of the floats and the seats of the catamaran (pedal boat) are made of fiberglass.
• The floats of the catamaran (pedal boat) are filled with foam, which ensures 100% unsinkability.
• The protective and decorative coating of a fiberglass pedal boat (fiberglass catamaran) provides not only ultraviolet resistance and surface smoothness, but also provides ample opportunities when choosing the color scheme of the product.

Surf - main parameters and dimensions:

• Catamaran length – 3.75 m;
• The width of the catamaran is 1.95 m;
• The height of the catamaran is 1.1 m;
• Catamaran weight – 95-100 kg;
• The carrying capacity of the catamaran is up to 200 kg;
• Passenger capacity – 2 people and a child under 12 years old.

TOP 5: GTS SEA-DOO SEASCOOTER

This is the closest relative of the underwater tug called GTI. For people who cannot imagine life without speed, but who do not yet want to burden themselves with bulky structures, it will be an ideal choice when preparing for a summer vacation planned in beautiful cities located along the Black Sea coast.

Options

They are better than those of the model described above, which is why the device occupies a higher level in the TOP 6:

The company provides guarantees for its products and allows you to buy an underwater tug on credit.

Price

With an underwater tug diving 30 meters deep, snorkeling and diving will be more interesting and effective.

Important: The device was designed for swimming in sea water, so buoyancy is reduced in pools and fresh water. If the structure is not supported, it may even sink.

Model with multiple transom stops

To make a jet ski with several stops with your own hands, you will need a wide stand. First of all, the lower part of the stringer is prepared. At this stage, the surface of the material is processed with a grinding machine. Many experts recommend using foam filler. Overlays are fixed at the back of the stringer. The side stringer is mounted on brackets. It is also worth noting that the jet ski will require a frame. The keel beam can be safely taken from the D16 series. When installing the deck, special attention must be paid to the sheathing. At the end of the work, a hole is made for the steering column.

A little about gullibility and naivety

Some enterprising businessmen offer for sale a hydrogen generator for cars. They talk about laser processing of the surface of electrodes or about the unique secret alloys from which they are made, special water catalysts developed in scientific laboratories around the world.

It all depends on the ability of the thoughts of such entrepreneurs to fly scientifically. Credulity can make you, at your own expense (sometimes not even small ones), the owner of an installation whose contact plates will collapse after two months of operation.

If you decide to save money in this way, then it is better to assemble the installation yourself. At least there will be no one to blame later.

From television screens we are told that the amount of oil is rapidly decreasing, and soon gasoline cars will become a thing of the distant past. But this is not entirely true.

Indeed, the number of proven oil reserves is not very large. Depending on the degree of consumption, they can last for a period of 50 to 200 years. But these statistics do not take into account still undiscovered oil production sites.

In reality, there is more than enough oil on our planet. Another question is that the complexity of its extraction is constantly increasing, which means the price is also increasing. In addition, the environmental factor cannot be discounted. Exhaust gases greatly pollute the environment and something needs to be done about it.

Multi-purpose hydrogen generator circuit

For those who do not have design skills, a hydrogen generator for a car can be purchased from folk craftsmen who specialize in the installation and assembly of such systems. Today there are many similar proposals. The cost of the unit and installation is about 40 thousand rubles.

However, you can assemble a system of this kind on your own - there is nothing complicated about it. It consists of several common components combined into a single whole:

1. Installations for water electrolysis.
2. Storage tank.
3. Moisture trap from gas.
4. Electronic control unit (current modulator).

Below is a diagram according to which you can assemble a hydrogen generator with your own hands without much effort. The drawings of the main plant producing Brown's gas are quite simple and straightforward.

The scheme does not present any engineering difficulties; anyone who knows how to work with a tool can repeat it. For cars with an injection fuel supply system, you also need to install a controller that checks the level of gas supply to the fuel mixture and is connected to the car’s on-board computer.

The amount of Brown's gas obtained depends on the area of ​​the electrodes and their material. If you use copper or metal plates as electrodes, then the reactor will not be able to operate for a long time due to the rapid destruction of the plates.

The use of titanium sheets looks great. But their use increases the cost of assembling the unit by a couple of times. It is good to use plates made of high-alloy stainless steel. This metal is available and does not require much effort to acquire. You can also use a used washing machine tank. The only difficulty will be cutting out the plates of the required size.

Homemade jet ski - is it possible?

At first glance, it seems that only a madman would dare to make a homemade jet ski. The idea is quite feasible if you have enough experience and good ingenuity.

Making a jet ski by hand takes a little time and effort. To significantly save on fuel, it is better not to use a water cannon. If you take an ordinary boat motor, you can expand the functionality of the unit and provide it with good speed. Correctly selected screws for the speed are already half the success.

Materials for making a trailer for a boat, boat or jet ski with your own hands

In Europe, cars will be fueled with salt water

In the minds of car enthusiasts, the opinion has long been formed that a sports car cannot be environmentally friendly, but automakers managed to dispel this myth by creating a car capable of accelerating to 350 km/h using salt water as fuel. Its unique drive system allows the 2.3-tonne car to accelerate from 0 to 100 km/h in just 2.8 seconds - as fast as the McLaren P1.

Since the Sportlimousine debuted at the Geneva Motor Show in March 2014, saltwater powered vehicles have been certified for road use in Europe.

Sportlimousine, whose power is 925 l / s, uses a power unit that works due to the flow of electrolytic fluids interacting with each other. The “heart” of the car operates on the principle of hydrogen engines, but sea water is used to store energy. When liquid passes through the membrane, an electrical charge is generated. This electricity is then stored and distributed by supercapacitors.

The car carries water in two 200-liter tanks, which allows it to cover up to 600 km. The four-seater is 5.25 meters long, 2.2 meters wide and 1.35 meters high. When decorating the car's interior, the creators used natural wood, which gives it a solid and monolithic look. In addition, the car is equipped with an entertainment center based on the Android operating system, DePauw reports with reference to Mail Online.

The Liechtenstein company NanoFlowcell AG, which created the miracle car, has not yet announced its prices or sales start dates, however, according to experts, the car could cost more than $1.7 million. The manufacturer is currently planning tests on public roads in Germany and other countries Europe, as it prepares for the start of mass production. The company claims that the technology they use is five times more energy efficient than lithium-ion batteries of the same weight.

“We have big plans, and not only in the automotive industry,” says Professor Jens-Peter Ellerman, Chairman of the Board of Management of NanoFlowcell AG. “The potential of NanoFlowcell is much greater, especially in terms of internal energy supplies. Our technology can also be used in marine, railway and aviation technology.”

Unlike traditional gasoline-powered cars, the Quant e-Sportlimousine uses a flow-through electrolyte cell system developed by . These elements are capable of producing a staggering 920 hp. As a result, the car on salt water can accelerate to 100 km/h in 2.8 seconds and has a top speed of 350 km/h.

This kind of alternative energy technology could make gasoline cars obsolete because it is much more efficient and environmentally friendly than traditional gasoline. The flow cell system developed by NanoFlowcell operates in a similar way to hydrogen fuel cell technology except that it uses salt water. In this system, two electrolytic liquids containing metal salts interact. The reaction generates electricity, which is then stored in supercapacitors.

The efficiency of this system is up to 80%, since the car with it has virtually no moving parts, and the excess heat generated is negligible compared to cars using lithium-ion batteries.

Model with oblique overlays

It is possible to make a jet ski with oblique linings only with long stringers. It is worth starting assembling the model by calculating the length of the racks. If you select small stops, then trapezoids can be used with a low profile. Before installing the lower stringer, the bottom of the jet ski is completely sealed. In this case, you can immediately make a hole for the shaft to control the model. Decks in this case are installed on racks. The sheathing is most often attached with glue. It is recommended to fix the upper stringer on strips. At the end of the work, all that remains is to secure the transom. Repairing a jet ski hull with your own hands is quite difficult.

Device with one transom stop

It’s very easy to make a jet ski with one stop with your own hands. For this purpose, a long stringer with a small profile is selected. The bow rail is attached first. It is more expedient to make the pads from foam plastic. It should also be noted that experts advise not to install the upper stringer right away. At the beginning of work, the deck is fixed. Overlays may be glued to a small width. The keel part of the jet ski must be well protected.

For this purpose, experts use fiberglass. In this case, the filler is usually made of polystyrene foam. Plywood directly for the body can be used from the C5 series. The bottom is most often processed with a grinding machine. Stripes should be installed at the top of the stringer. Transom stops are fixed in the keel part. In case of malfunctions, you can repair the jet ski engine yourself by removing the rear struts.

Rod holders

Attaching reliable and convenient rod mounts to the plastic or metal sides of the boat will help increase your comfort while fishing.

Special fasteners are selected depending on the fastening method, material of manufacture and functional features, which helps to make the right choice of such structures.

Jet ski with straight linings

Making a model with straight overlays is quite simple. For this purpose, a stringer is used with a low profile. In order to assemble a jet ski, the deck of the model is first prepared. Next you will need to install the bottom stringer. Experts do not recommend using a cheap sealant. The bow rail is mounted on a bracket. The bottom of the jet ski should be thoroughly cleaned with a sanding machine. The linings are installed directly on the side of the stringer. The hole for the steering column can be made at the end of the robot.

Which cars are NOT water cars?

The following technical solutions do not apply to “water cars”:

• Steam car.
• Water injection is a method of cooling engine cylinders by adding water to the fuel-air mixture, serving to increase the compression ratio and prevent detonation.
• A hydrogen car, although it often contains some similar elements. To fuel a hydrogen car, water is subjected to electrolysis. The resulting hydrogen is then burned in the engine or oxidized to water in the fuel cell. As a result, the car receives energy from the combustion of hydrogen, which is obtained from energy from the electrical network. Hydrogen serves as an energy carrier.
• Adding water to traditional hydrocarbon fuels to save fuel and/or reduce emissions. Although this is the most common way to use water in cars.

The design of a jet ski - a detailed description of the operating principles of the watercraft

Jet skis are complex devices whose design resembles a classic motorcycle or snowmobile. A jet ski is a unique watercraft with a metal-plastic hull, which is equipped with a two-stroke, less often a four-stroke internal combustion engine. Its initial application was sports competitions. Later, the unique vehicle began to be used for active recreation. In order to understand how a jet ski works, it is worth learning about the existing types of modern technical equipment.

Currently, the most popular are two types:

standing - aquabikes that can reach speeds of up to 120 km/h. They are characterized by lightness and maneuverability. Thanks to the adjustable inclination of the water cannon nozzle, freestylers have the ability to make sharp turns or jumps over the water and still remain safe for the pilot;

ICE on hydrogen fuel

For many years, there has been a search for the possibility of adapting internal combustion engines for full or hybrid operation on hydrogen fuel. In England, back in the first half of the 40s of the nineteenth century, an engine was patented that runs on an air-hydrogen mixture. At the beginning of the 20th century, the Zeppelin concern used internal combustion engines that run on hydrogen as the propulsion system for its famous airships.

The formation of hydrogen energy was also facilitated by the global energy crisis that broke out in the 70s of the last century. However, with its completion, hydrogen backup power plants were quickly forgotten. And this is despite the many positive qualities when compared with traditional fuel:

• perfect flammability of the fuel mixture based on air and hydrogen, which provides a chance for easy engine starting at any air temperature;
• large heat release during gas combustion;
• unconditional safety in environmental terms - exhaust gases turn into water;
• the combustion rate is 4 times higher when compared with a gasoline mixture;
• the ability of the mixture to operate without detonation at a high compression ratio.

The key technical basis, which is an insurmountable obstacle to the use of hydrogen as a fuel for cars, has been the inability to place a large amount of gas on a vehicle. The size of the hydrogen fuel tank will be comparable to the parameters of the car itself. The high explosiveness of the gas should eliminate the possibility of the slightest leak. In liquid form, a cryogenic installation is needed. This option is also not very feasible in a car.

Classic jet ski

It is not necessary to use floats; you can also make a model that will look terribly like expensive Yamahas - after all, those are more pleasant to ride, right? The structure itself is a frame-stringer frame, covered with 3 mm plywood, then covered with fiberglass. The control system is a lever-and-cable type, just like the kit for remote control of an outboard motor. However, it uses a motorcycle handlebar, and the rotating motorcycle handle serves as the throttle lever.

Such a water horse can be transported on a rack on the roof of a car - its weight and dimensions allow you to save on an additional trailer.

Results

Now the hydrogen engine is no longer a figment of the imagination of scientists, but a very real development that can be done independently. Of course, such a unit will be inferior in characteristics to the factory model. But the savings for internal combustion engines will still be noticeable.

Hydrogen engines not only help reduce gasoline consumption, but are also completely environmentally friendly. That is why already in the first quarter, sales of the Toyota hydrogen car broke all records in Japan.

Three-float model

A three-float jet ski is made with your own hands with bow rails. For many models, the end wall is attached first. After this, you can fix the lower stringer. In this case, trapezoids are selected to have a small width. The top stringer is installed last. You can make a trailer for a jet ski with your own hands from metal sheets with a thickness of 1.5 mm. The nose fairing should be selected with a small thickness. The pads are most often made of foam. It should also be noted that during work you should pay attention to the steering column. The hole for the shaft can be made using a jigsaw.

Current regulator

A hydrogen generator on a car increases its own productivity during operation. This is due to the release of heat during the electrolysis reaction. The working fluid of the reactor feels the heat, and the process flows much more intensely. To control the progress of the reaction, a current regulator is used.

If you do not reduce it, the water may simply boil and the reactor will stop producing Brown gas. A specialized controller that verifies the operation of the reactor makes it possible to change productivity with increasing speed.

Carburetor models are equipped with a controller with a traditional toggle switch for 2 operating modes: “Highway” and “City”.

Required performance

In order to truly save fuel, a hydrogen generator for a car must produce gas every minute at the rate of 1 liter per 1000 engine displacement. Based on these requirements, the number of plates for the reactor is selected.

To increase the surface of the electrodes, it is necessary to treat the surface with sandpaper in a perpendicular direction. This treatment is extremely important - it will increase the working area and avoid “sticking” of gas bubbles to the surface.

The latter leads to isolation of the electrode from the liquid and prevents normal electrolysis. Do not also forget that for normal operation of the electrolyzer, the water must be alkaline. Regular soda can serve as a catalyst.

Brown's Gas

Today, hydrogen backup power plants are becoming increasingly popular among motorists. However, this is not really what was discussed above. By electrolysis, water is converted into, in other words, Brown's gas, which is added to the fuel mixture. The main task that this gas solves is the absolute combustion of fuel. This serves to increase power and reduce fuel consumption by a decent percentage. Some mechanics have achieved savings of 40%.

The surface area of ​​the electrodes is important in the quantitative gas yield. Under the influence of electric current, a water molecule begins to decompose into 2 hydrogen atoms and one oxygen. When burned, such a gas mixture releases almost 4 times more energy than when burning molecular hydrogen. Due to this, the use of this gas in internal combustion engines leads to more efficient combustion of the fuel mixture, reduces the amount of harmful emissions into the atmosphere, increases power and reduces the amount of fuel consumed.

Device with longitudinal steps

It is very difficult to make a model with longitudinal steps. The main problem in this case lies in the selection of the stringer. For a jet ski, only a part with a high profile is suitable. If necessary, you can make the stands yourself using a grinder. It is more advisable to use plywood from the C5 series. Experts say that the bow handrail should be done at the end of the work.

The keel part should be located behind the steps. The upper stringer is fixed on brackets. The end wall must have overlays. It is recommended to use polystyrene foam as a filler. It is also worth noting that experts recommend using wide transom mounts. All this is necessary in order to remove the load from the keel of the jet ski. This will significantly increase the strength of the frame.

TOP 6: RS3 SEA-DOO SEASCOOTER

Review

An underwater tug equipped with the latest buoyancy system patented by the manufacturer and a fast-charging lithium-ion battery will give the diver an incredible experience.

It is recommended to buy such an underwater device for those who are planning to go to the sea in the summer. Manufacturer BRP has put a lot of effort into making their underwater towing vehicle an indispensable assistant for anyone interested in underwater fishing and diving.

With it, the underwater world will open before their eyes in unimaginable colors.

This series has a self-filling ballast hull, which makes it possible to achieve neutral buoyancy in a matter of seconds.

Water from the ballast spaces leaves freely through the drainage holes provided for this purpose, just as it enters them, which makes it possible to achieve neutral buoyancy, and also, once on the surface, to easily release water.

We recommend:

The speed control system allows you to keep the speed at a given level, and the power indicator helps you know exactly how much charge is left.

Huge areas of reefs will allow you to explore this amazing underwater gadget in an hour of diving. To do this, the diver does not even need to exert any physical effort. The device also reduces air consumption significantly.

When diving, the balancing chamber fills with water almost instantly, allowing the user to independently adjust neutral buoyancy. If it is necessary to make finer adjustments, use a balancing weight, of which there are 4 pieces in the set.

It is also possible to control the speed and battery charging.

Technical specifications

Price

With this underwater tug, relaxing is fun and educational.