A video of Yves Rossi's jetpack flying over Dubai has received almost 12 million views. The Swiss pilot and extreme sports enthusiast conquered the world with his invention and was able to reach speeds of up to 193 km/h. Go to the Moscow region and experience the drive, adrenaline and excitement of flying!
Flight on a jetpack in Moscow and the Moscow region for a price starting from 2,500 rubles. up to 8,000 rub.
How does a jet pack work?
A Jet Pack or jetpack is an aircraft that is worn like a backpack. Water jets shoot out from the nozzles behind the participant’s back, which lifts the person from the water. Levers for controlling speed, direction and height are located on the sides under the arms, allowing for mobility. Flight on a jetpack takes place in a sitting position, which greatly facilitates the control process. Less balancing and dexterity required.
In the 60s of the last century, the rocket pack was at the peak of its popularity.
So, in the new film about James Bond - “Thunderball”, the hero flew from the roof of the castle from the guards on a backpack.
Is it safe to fly?
The jetpack flight takes place on the Jetpack Zapata Racing system. In addition to the “sitting” position during flight, the seat has positive buoyancy, which keeps it afloat while falling or stopping on the water. The backpack is equipped with a five-point safety harness and a clamp arrester, which is controlled by pressing a finger.
The transparent design of the nozzle system adds to the effectiveness of the flight. So during the flight you will be able to see a powerful flow of water that will allow you to fly.
Preparing for the flight:
It is difficult to operate a flying jetpack in Moscow; you cannot do it without instructions and training on land. The instructor will introduce you to the device and its controls, water safety precautions and answer all questions that arise.
Afterwards, put on a wetsuit, helmet and life jacket. You will be taken to the water by boat and then mastering the jetpack will begin.
This entertainment is available only to adults whose weight is from 50 to 100 kg.
On a note:
The certificate is valid for 8 months. It is imperative to take into account the seasonality of the provision of services and the conditions for their implementation (for example, favorable weather conditions, schedule, etc.), which is agreed upon with the organizers when registering.
Delivery of gift certificates for jetpack riding is free within the Moscow Ring Road the next day after ordering. .
Flight on a jetpack in the Moscow region
Wake Club (Pirogovskoye Reservoir)
The club is located on the territory of the Troitskoye recreation center in the waters of the Klyazminskoye and Pirogovskoye reservoirs. The club is located 7 km from the Moscow Ring Road along Dmitrovskoe Highway. In addition to floating above the water in picturesque places, each client will find an equipped beach, a cafe and a hotel.
Serebryany Bor
The protected island-park, 20 minutes from the center of the capital, attracts with its location. Picturesque nature, many beaches and cafes allow you to relax to the fullest. Flyboarding and jetpack rides will bring a breath of freshness and adrenaline to your vacation.
!Attention: the 2019 season is closed.
Book a flight
Inventor Richard Browning, known as " iron Man", launched self-produced jetpacks into open sale. The first buyers were residents of London. But, if you have 440 thousand dollars, then right now you can become a superhero.
Richard Browning is an English inventor and entrepreneur who received the nickname “Iron Man” from journalists. In March 2017, Browning founded the company Gravity Industries, where the jetpack was developed, and in April of the same year he presented his invention.
In July 2018, the device went on public sale. The Tony Stark-style flight suit is equipped with five jet engines for vertical flight, and each of them is rated at 22 kilograms of pressure, and it weighs 27 kilograms. The direction and speed of the jetpack's flight is controlled by hand movements, and information on fuel consumption and other data is displayed on the display inside the helmet.
Londoners can be the first to buy a jetpack at the city's oldest department store, Selfridges on Oxford Street. Other buyers can search for information of interest on the company’s website, but for the toy they will have to pay 443,428 US dollars (about 28 million rubles), writes the New York Post. For now, Browning is only giving away copies purchased in advance and made to order.
And here is Browning himself, flying not far from the sale.
The backpack runs on jet or diesel fuel, is capable of reaching speeds of up to 50 kilometers per hour and rising to a height of up to 3.6 kilometers. However, during a demonstration of the backpack outside a department store, Browning floats just a few meters above the ground, explaining this for safety reasons.
It consumes about four liters of fuel per minute when floating freely. Therefore, for three or four minutes you can fly quite easily. We have another version - when flying on cold days, the thrust of the pack increases, and it flies for about nine minutes.
Browning admits that the backpack's runtime isn't ideal, and Gravity Industries is continuing research into improving it. In the meantime, those who decide to buy a suit, the company offers to go through free education on its use and first try yourself as a pilot at the test site.
The invention of the first jetpack is equivalent to the first flight of an airplane. In fact, these flights are amazing - calm and soft. The backpack flies passively, gently.
In the spring of 2017, Browning and his invention broke a world record and ended up in the Guinness Book of Records for the fastest flight in a flying suit in human history. At the same time, the speed of the flying Browning was 32.02 miles per hour (51.53 kilometers per hour).
Jet pack
Jetpack
Jetpack(or rocket pack), (English) jet pack, rocket pack, rocket belt etc.) - a personal aircraft, worn on the back, allowing a person to rise into the air using jet propulsion. Thrust is created due to the jet stream emitted vertically downwards by the engine.
There are two main types of jetpacks:
- jetpack with rocket engine (rocket pack, rocket pack or rocket belt).
- a jetpack with a turbojet engine (actually a jetpack, jet pack or jet belt);
Rocket packs are very simple in design, which is why they have become widespread. The classic rocket pack designed by Wendell Moore can be made in a private workshop, although this requires good engineering training and high level metalworking skills. The main disadvantage of a rocket pack is its short flight duration (up to 30 seconds) and high consumption of scarce fuel - hydrogen peroxide. These circumstances limit the scope of use of rocket packs to very spectacular public demonstration flights. Flights on rocket packs always capture the attention of spectators and are a great success. For example, such a flight was arranged during the opening ceremony of the 1984 Summer Olympics in Los Angeles, USA.
In subsequent flights, Graham worked on his backpack control techniques and mastered more complex piloting techniques. He learned to fly in a circle and turn on the spot, flew over streams, cars, ten-meter hills, and flew between trees. A total of 28 flights were made from April to May. Wendell Moore sought absolutely reliable performance from the backpack and confident piloting from Graham, so as not to make a mistake in front of the public. During the tests, the following maximum indicators were achieved:
- flight duration - 21 seconds;
- flight range - 120 meters;
- height - 10 meters;
- speed - 55 km/h.
On June 8 of the year, the backpack was demonstrated publicly for the first time - in front of several hundred officers at the Fort Eustis military base ( Fort Eustis). Other public displays followed, including the famous flight in the Pentagon courtyard in front of three thousand military personnel who watched in delight as Harold Graham flew over a passenger car.
October 11th ( according to other sources - October 12) the backpack was personally demonstrated to President Kennedy during demonstration maneuvers at the Fort Bragg military base ( Fort Bragg). Graham took off from an amphibious LST, flew across a strip of water, landed a few meters in front of the President and famously saluted the Commander in Chief of the US Army. According to eyewitnesses, the president watched the flight, his mouth open in amazement.
Harold Graham and his maintenance team traveled to many cities in the United States, Canada, Mexico, Argentina, Germany, France and other countries, each time demonstrating the rocket pack in action to the general public with great success.
The army was disappointed. The maximum flight duration of the rocket pack was 21 seconds, the range was 120 meters. At the same time, the backpack was accompanied by a whole team of service personnel. One twenty-second flight consumed up to 5 gallons (19 liters) of scarce hydrogen peroxide. According to the military, the Bell Rocket Belt was more of a showy toy than an effective one. vehicle. The army's expenses under the contract with Bell Aerosystems amounted to $150,000, and Bell itself spent another $50,000. The military refused further funding of the SRLD program, the contract was completed.
A small video recording of one of Harold Graham's flights can be downloaded. Size 436 KB, asf format, requires Windows Media Player.
The design and principle of operation of a rocket pack
Bell Rocket Belt rocket pack. US Patent No. 3243144, 1966
All existing rocket packs are based on the Bell Rocket Belt design developed by Wendell Moore. Moore's backpack structurally consists of two main parts:
- Rigid fiberglass corset ( 8 ), secured to the pilot's body by a system of belts ( 10 ). The corset has a metal tubular frame on the back, on which three cylinders are installed: two with liquid hydrogen peroxide ( 6 ) and one with compressed nitrogen ( 7 ). When the pilot is on the ground, the corset distributes the weight of the pack onto the pilot's back and lower back.
- Rocket engine movably mounted on a ball joint ( 9 ) at the top of the corset. The rocket engine itself consists of a gas generator ( 1 ) and two pipes rigidly connected to it ( 2 ), which end in jet nozzles with controlled tips ( 3 ). The engine is rigidly connected to two levers that pass under the pilot's hands. With these levers, the pilot tilts the engine forward or backward, as well as to the sides. The right lever has a rotary traction control handle ( 5 ), connected by a cable to the valve-regulator ( 4 ) fuel supply to the engine. A steering handle is installed on the left lever, which is connected by flexible rods to the controlled tips of the jet nozzles.
Hydrogen peroxide
The action of a rocket engine is based on the decomposition reaction of hydrogen peroxide. Hydrogen peroxide of 90 percent concentration is used (it is a colorless liquid with a density of 1.35 g/cm³). Hydrogen peroxide in its pure form is relatively stable, but upon contact with a catalyst (for example, silver) it rapidly decomposes into water and oxygen, increasing in volume 5000 times in less than 1/10 of a millisecond.
2H 2 O 2 → 2H 2 O + O 2
The reaction proceeds exothermically, that is, with the release large quantity heat (~2500 kJ/kg). The resulting vapor-gas mixture has a temperature of 740 degrees Celsius.
The principle of operation of a rocket engine
Operating principle of a rocket pack engine
The figure shows cylinders with hydrogen peroxide and a cylinder with compressed nitrogen (pressure about 40 atm). The pilot turns the engine thrust control handle and the control valve ( 3 ) opens. Compressed nitrogen ( 1 ) displaces liquid hydrogen peroxide ( 2 ), which enters the gas generator through tubes ( 4 ). There it comes into contact with a catalyst (thin silver plates coated with a layer of samarium nitrate) and decomposes. The resulting vapor-gas mixture high pressure and temperature enters two pipes leaving the gas generator (the pipes are covered with a layer of thermal insulation to reduce heat loss). The hot gases then enter the jet nozzles (Laval nozzle), where they are first accelerated and then expanded, acquiring supersonic speed and creating jet thrust. The entire design is simple and reliable; the rocket engine does not have a single moving part.
Piloting the pack
The backpack has two levers rigidly connected to the propulsion system. By pressing these levers, the pilot forces the nozzles to deflect back, and the pack flies forward. Accordingly, raising the levers causes the backpack to move backwards. You can tilt the propulsion system to the sides (thanks to the ball joint) to fly sideways.
Control using levers is quite rough; for finer control, the pilot uses the handle on the left lever. This handle controls the jet nozzle tips. Tips ( jetavators) are spring-loaded and can be tilted forward or backward using flexible rods. By tilting the handle forward or backward, the pilot simultaneously deflects the tips of both nozzles to fly straight. If the pilot needs to make a turn, he turns the handle, while the nozzles are deflected in opposite directions, one forward, the other back, turning the pilot and the pack around its axis. By using a combination of various movements of the handle and levers, the pilot can fly in any direction, even sideways, perform turns, rotate in place, etc.
You can control the flight of the backpack in another way - by changing the position of the body's center of gravity. For example, if you bend your legs and raise them to your stomach, the center of gravity will shift forward, the backpack will tilt and also fly forward. Such control of the backpack using your own body is considered incorrect and is typical for beginners. Experienced pilot Bill Sutor states that during the flight you need to keep your legs together and straight, and control the flight using the levers and handles of the backpack. This is the only way to learn how to competently pilot a jetpack and confidently perform complex maneuvers in the air.
two levers rigidly connected to the propulsion system. By pressing these levers the pilot causes the nozzles to deflect
A rotating “throttle handle” is installed on the right lever. When stationary, it completely closes the fuel supply regulator to the engine. By turning the handle counterclockwise, the pilot increases engine thrust. When filling the backpack with compressed nitrogen, the handle is secured in the locked position with a safety pin.
There is a timer on the same handle. Since the pack only has a fuel reserve for 21 seconds of flight, the pilot needs to know when he is running out of fuel so as not to end up with empty tanks at an altitude of 10 meters. Before the flight, the timer is set to 21 seconds. When the pilot turns the handle for takeoff, the timer begins counting down and signals the buzzer in the pilot's helmet every second. After fifteen seconds, the signal becomes continuous, informing the pilot that it is time to land.
Features of flying on a rocket pack
The pilot of the backpack is dressed in a protective suit made of heat-resistant material, since both the jet stream and the engine pipes have a very high temperature. A protective helmet must be worn on the head (it also has a signal buzzer inside).
When a rocket engine is operating, a supersonic jet stream produces a deafeningly loud sound (up to 130 dB), more reminiscent of a high-pitched screech than a roar. jet engine. A rocket pack is a very noisy aircraft.
As a rule, the emerging jet stream is transparent and not visible in the air. But in cold weather water vapor, which makes up most vapor-gas mixture condenses shortly after leaving the nozzles, and then the pilot is enveloped in a whole cloud of water mist. It is for this reason that the very first tethered flights of the Bell Rocket Belt were carried out in a hangar - it was in winter. Also, a jet stream can be visible if the fuel in the gas generator is not completely decomposed, which happens, for example, when the catalyst is performing poorly or when hydrogen peroxide is contaminated with impurities.
Modern versions of the backpack
| Technical characteristics of the rocket pack | ||
|---|---|---|
| Bell Rocket Belt | RB 2000 Rocket Belt | |
| Flight duration | 21 s | 30 s |
| Engine thrust | 136 kgf (estimated 127) | 145 kgf |
| Maximum flight range | about 250 meters | |
| Maximum flight altitude | 18 m | 30 m |
| Maximum speed | 55 km/h | 96 km/h |
| Curb weight | 57 kg | 60 kg |
| Fuel reserve | 19 l | 23 l |
In 1995, the design of the backpack was improved. Three engineers from Texas, Brad Barker, Joe Wright and Larry Stanley, invited professional inventor Doug Maleviki ( Doug Malewicki), built a new version of the rocket pack, which they called " RB 2000 Rocket Belt" The RB 2000 backpack basically follows the design of Wendell Moore, but is made of light alloys (titanium, aluminum) and composite materials, has an increased fuel capacity and increased power. As a result, the maximum flight duration has been increased to 30 seconds.
Bell Jet Flying Belt
In 1965, Bell Aerosystems entered into a new contract with the military agency ARPA to develop a backpack that would rightfully be called a jet - a backpack with a real turbojet engine. The project was called “Jet Flying Belt”, or simply “Jet Belt”. Wendell Moore and John Nalbert ( John K. Hulbert), gas turbine specialist. Especially for the new backpack, Williams Research Corp. By order of Bell, she designed and manufactured the WR-19 turbojet engine, with a thrust force of 195 kgf and a weight of 31 kg. By 1969, a new backpack was created.
On April 7, 1969, the first free flight of the Jet Belt turbojet pack took place at the Niagara Falls airfield. Pilot Robert Courter ( Robert Courter) flew about 100 meters in a circle at a height of 7 meters, reaching a speed of 45 km/h. The following flights were longer, up to 5 minutes. Theoretically, the new backpack could stay in the air for up to 25 minutes and reach speeds of up to 135 km/h.
Despite the successful tests, the army again showed no interest. The backpack was difficult to handle and too heavy. The pilot's landing with such a load on his shoulders was unsafe. In addition, if the engine was damaged, the turbine blades could fly apart at high speeds, threatening the life of the pilot.
The Bell Jet Flying Belt backpack remained an experimental model. On May 29, 1969, Wendell Moore died of illness, and work on the turbojet pack was curtailed. Bell sold the only copy of the backpack to Williams, along with patents and technical documentation. This backpack is currently on display at the Williams Research Corp. Museum.
Features of the turbojet pack design
The Jet Belt pack has a WR-19 turbojet engine. Engine weight 31 kg, thrust 195 kg, diameter 30 cm. The engine is installed vertically, with the air intake down ( 1 ). The incoming air is compressed by a compressor and divided into two streams. One stream goes into the combustion chamber. The second flow passes between the double walls of the engine, then mixes with the flow of hot exhaust gases, cooling them and protecting the pilot from high temperature. At the top of the engine, the mixed flow is divided and enters two pipes leading to the jet nozzles ( 2 ). The design of the nozzles allows you to deflect the jet stream in any direction. Fuel (kerosene) is in tanks ( 3 ) on the sides of the engine.
Controlling a turbojet pack is similar to controlling a rocket pack, but the pilot can no longer tilt the entire propulsion system. Maneuvering is performed only by deflecting the controlled nozzles. By tilting the levers, the pilot deflects the jet stream of both nozzles forward, backward or to the sides. By turning the left handle, the pilot rotates the backpack. The right handle, as usual, controls the engine thrust.
The jet engine is started using a powder squib. During the tests, a mobile starter on a special cart was used for starting. There are instruments for monitoring engine operation and a walkie-talkie for communication and transmission of telemetric information to ground engineers.
A parachute is installed on top of the backpack ( 4 ) (a standard landing reserve parachute is used). It is only effective when opened at a height of more than 20 meters.
Rocket pack in show business
In the 60s, the Bell Rocket Belt was at the peak of its popularity. The Bell company staged demonstration flights in the United States and other countries, each time causing delight among the public.
in 1965, a new film from the James Bond series, Thunderball, was released. Bond (played by Sean Connery) infiltrates a French castle where an agent of the mysterious organization SPECTRE is hiding. Bond eliminates the enemy, then escapes from the guards to the roof of the castle and flies away on a previously hidden rocket pack.
Two backpacks were used in the filming of the film. One, a prop, can be seen on Sean Connery in close-up scenes. The second was a real Bell Rocket Belt backpack and flew live. It was flown by Bell pilots Bill Sutor and Gordon Yeager ( Gordon Yaeger). The scenes with Sean Connery and the backpack had to be filmed twice, because the first time he was filmed with his head uncovered, and his dubbing director, Bill Suitor, flatly refused to take off without a protective helmet. When dubbing the film, the real piercing roar of the backpack engine was replaced with hissing
It seems that the time is not far off when a jet backpack will be on the back of everyone who prefers flying under the clouds to traveling in cars. In any case, the first successful flight on such a backpack, thanks to Australian designers, has already taken place.
For more than 100 years, engineers have been obsessed with creating jetpack. The first projects of such a “vehicle” began to appear at the dawn of the development of aviation. The most significant attempts were made in the 40s and 60s of the last century. However, it was not possible to achieve any significant success. The development of jetpacks began with renewed vigor in the 80s, and then with the beginning of the 21st century. The first most successful model was presented in Australia in 1984. An experienced backpack was able to stay in the air for a little more than 30 seconds.
Today, several teams are working on the creation of jetpacks. One of the most striking projects of recent times has been Martin Jet Pack. The aircraft, however, is very far from the futuristic jetpack that most people imagine. On the other hand, it became the first “pack” capable of holding a person in the air for 30 minutes.
The most successful team of engineers was that of Australian inventor and businessman David Mayman. Mayman has always been obsessed with jetpacks, and for good reason, as he was one of the people who worked on the Australian science team in the 80s. And it was his team’s backpack that made the first successful full flight. Mayman himself has been working in this direction for more than 45 years. The new brainchild of David Mayman's team was called JB-9.
The first thing the businessman noted in an interview is that this is a “backpack,” hinting that the vast majority of related developments from other teams are still not backpacks. Much of the JB-9's structure is made from carbon fiber and other composite materials. The backpack can perform vertical takeoff and landing, is controlled by two manipulators, and rises into the sky using two engines. The pilot is attached to the backpack using a special stabilizer belt and a set of belts.
The JB-9 can stay in the air for about 10 minutes. According to Maiman, the duration of the flight mainly depends on the weight of the pilot. Also affected by altitude, air temperature and a number of other, less significant factors. The JB-9 tank holds 10 gallons of fuel. The backpack “eats” about one gallon per minute. The fuel is kerosene - cheap, easy to produce and relatively safe.
Undoubtedly, even James Bond would be jealous of such a backpack. JB-9 can rightfully be included in .
» Jetpack - make it yourself or buy it
The jetpack is a technological device, thanks to which people managed to learn to move in space in a non-standard way. A jetpack is a prototype of a rocket engine. Structurally, the device is made using the same technologies for generating thrust due to the release reactive gases. But the peculiarity of the jet module in the form of a backpack is that it is applicable exclusively for one person. So, is it possible to make a jetpack with your own hands?
As always, it all started with science fiction literature and cinema. In a modern interpretation, the idea of a jetpack was picked up by the creators computer games. As a result, it came to real inventions, starting in the 20s of the last century, with the continuation of the techno-epic to the present day.
Testing of invented rocket packs, as a rule, takes place with the participation of volunteers. A rare engineer-inventor is willing to risk personally testing such controversial equipment. The theme of rocket packs is exciting modern society incredible. In the future, we see massive sales of rocket modules for personal use and endless queues for such installations. The backpack boom is comparable to the beginning of the era. But the rates on jetpacks cannot be compared with those on automobiles.
The personal use rocket pack was first mentioned in 1928. Then a popular magazine publication published the science fiction novel “Armageddon 2419” on the pages of its next issue. Subject picture rocket packs received great attention as a means of transportation in the near future. In fact, the author of the story turned out to be right.
However, the creator of the novel did not guess the date of the first tests of missile systems for personal use. The pioneer here is considered to be the American Thomas Moore, the inventor of the Jet West apparatus, who in 1952 was the first to manage to stay in the air for 2 seconds. Thomas had a rocket pack over his shoulders.
So far, it’s only possible to see a person flying without problems only on the film sets of Hollywood directors making science-fiction films with flying heroes. Jetpack design
The history of the design of such devices has preserved information about two types of prototypes:
- Equipped with a rocket module (Rocket Belt).
- Equipped with a turbojet module (Jet Belt).
The design of devices of the first type is characterized by a simple design. It was this factor that became the reason for the high popularity of Rocket Belt.
If desired, even the possibility of assembling a classic design in a handicraft production environment is not excluded. But the advantageous factor of Rocket Belt negates another point - a significant limitation of flight time.
The record for these devices is no more than 30 seconds of flight. At the same time, the consumption of hydrogen peroxide is incredibly high. Therefore, the scope of application of devices such as Rocket Belt is so far limited only by the boundaries of demonstration shows. Here we can recall the US Olympics (1984), where a demonstration flight was demonstrated.
Now there are already modifications that are more advanced than the one in the picture. Capable of moving a person through the air for about 1 hour Elements of the Rocket Belt jet module:
- durable corset (fiberglass),
- fastening belt system,
- chassis based on light metal tubes,
- a pair of hydrogen peroxide cylinders,
- a cylinder filled with compressed nitrogen,
- rocket module on hinges.
Elements of the rocket module (Jet Belt):
- gas generator,
- jet nozzles (2 pcs.),
- control levers (2 pcs.),
- rotary rod,
- fuel supply control mechanism,
- jet nozzle control mechanism.
Jetpack: Technology Basics
The rotary rod raises the fuel filling valve. Nitrogen gas with a pressure of 40-50 atmospheres crushes a mass of hydrogen peroxide. The substance rushes into the generator chamber. There, in the chamber, there is active contact between silver plates treated with samarium nitrate and hydrogen peroxide filling the chamber.
Test flight among skyscrapers with a Rocket Belt rocket pack The contact is accompanied by an active reaction and contributes to the rapid formation of a vapor-gas mixture. The resulting vapor-gas environment of high temperature and pressure rushes through the channels into the area of the jet nozzles.
Here the gas mixture expands sharply, accelerates to supersonic speed, and is thrown out. The effect is created jet thrust, thanks to which it is permissible to influence an object, in particular, to lift the object into the air.
Turbojet version of the device (Jet Belt)
A device of a slightly different configuration - a turbojet backpack for personal use, was invented in 1969. The prototype of the WR-19 turbojet unit, weighing 31 kg, was created by engineers Wendell Moore and John Hulbert.
Experiments with this modification of the turbojet pack continue to this day. There are positive results, but the cost of equipment does not allow the turbojet pack to be put into mass production The first tests of the Jet Belt prototype were carried out the same year and obtained interesting results - a flight of a distance of 100 meters at a seven-meter altitude.
Jet Belt energy is based on mixing kerosene and air. The mixture is compressed to several tens of atmospheres and supplied by a compressor to the working chamber - one of the two working compartments of the apparatus. The second compartment is dedicated to the cooling module, which makes up the cooling circuit of the combustion chamber.
The air-kerosene mixture fills the combustion chamber and ignites. The resulting jet stream rushes out through the nozzles. The nozzle control mechanism makes it possible to regulate the strength and direction of the jet flow.
The turbojet design is characterized by pronounced efficiency. This installation option shows the best flight parameters: duration, acceleration, altitude. But turbojet packs have inherent system complexity and significant financial production costs.
Do similar devices It’s even more impossible with your own hands. This requires unique equipment and specialists. Unless you just try to build a rocket launcher yourself purely for experimental purposes.
DIY jetpack
The experimental jetpack design is essentially made by hand within one to two working days. To produce equipment, standard metalworking skills are sufficient.
It is quite possible to do such an installation, which is relatively simple from a constructive point of view, with your own hands in a couple of days. There is no need to have professional knowledge Kit necessary details homemade device differs significantly from the set that is required for the production of truly “lifting”, professionally made models. The assembly mechanic will need:
- Two metal nozzles.
- Steel strip (400x40x5).
- Tin sheet (500x500x0.7).
- Steel studs (2 pcs.), bearings (4 pcs.).
- Propane cylinder (small capacity).
- Gas distribution manifold.
- Two small-sized 12V electric motors.
- High pressure hose.
- Radio control system.
The main point in this matter is homemade assembly jetpack as part of the experiment allows us to better understand the operating principle of devices of this type. Also, the potential assembler will be able to essentially assess the feasibility of the project.
Turbine diagram: 1 - intake blade; 2 - high pressure compressor; 3 — high pressure compressor shaft; 4 - high pressure turbine; 5 - compressor low pressure; 6 — low pressure compressor shaft; 7 - combustion chamber; 8 - low pressure turbine; 9 - nozzle It should be noted: the work of assembling equipment is quite dangerous and involves the practice of using flammable substances. Therefore, before attempting to repeat the experiment, all necessary safety precautions should be taken.
Preparation of components and assembly
Nozzles suitable for a jetpack turbine can be found on old processing equipment that was used, for example, in the dairy industry. Thus, the designs of old cream and milk dispensing machines contain a lot of suitable parts.
These are the parts taken from old equipment that, after appropriate processing, can easily be transformed into nozzles for the power turbine of a future aircraft Old, rusty nozzles must be cleaned, carefully processed, and sanded. These operations are easy to carry out using widely used instrumental equipment. You will need to drill holes on the sides of the nozzles to connect the gas distribution manifold bushings.
Small electric motors are located inside the jetpack nozzles. The motors are equipped with a long shaft, along the entire length of which there is a row of impellers. The shaft with impellers is mounted on installed support bearings. The shaft is made from metal pins, and the impellers are made from sheet metal.
Impellers of different diameters are made from sheet metal. A round shape is cut out, divided into sectors, then the work plates are cut with scissors The prepared nozzles are fastened together by welding with a metal strip. The internal spaces of the nozzles are connected through a gas distribution manifold.
Details of the gas distribution manifold are machined into lathe. Hollow threaded bushings made with my own hands, are easily assembled into a single structure.
In this way - by ordinary drilling with a drill - hollow bushings of the gas mixture distribution manifold are made. A thread is cut for the inter-sleeve connection The collector design also contains:
- check valves,
- injectors,
- mechanisms for igniting the gas mixture.
Gas (propane) enters through the manifold into the working area of the jetpack nozzles from a small propane cylinder. The volume of the cylinder is enough for 30-40 minutes of intense action.
Fan control system
By adjusting the rotation speed of the fan impellers (turbines), it is convenient to increase or decrease the power of the jetpack. Therefore, the experimental design is equipped with a radio transmitter and receivers, thanks to which the fan motors are controlled.
Option for controlling the rotation speed of turbine electric motors. Transceiver radio equipment is used, which is equipped, for example, with children's radio-controlled toys. The transceiver module can be purchased ready-made. Quite suitable receiving and transmitting devices are sold inexpensively through popular online stores.
The fan motors are connected through the controller circuit to the signal receiver. gas mixture ignition system.
During the experiment, the transmitter is located at an arbitrary distance. Subsequently, if it comes to a real takeoff, the device will be attached to the pilot’s body.
Jetpack tests
That's all, actually. A self-made jetpack was successfully tested at home. True, the usual trade steelyard acted as a load moved in space.
Using a simple device - an electronic scale, we were able to determine the power of a home-made jetpack. As can be seen on the scale display, the pulling force was slightly more than 6 kg Judging by the steelyard scale, the thrust force of the self-assembled turbine slightly fell short of the value - 10 kg. However, even this test result allows us to hope for the future. Reliable ones are truly capable of turning reality. Videos as proof
