Nearly 12 million views were collected by a video of a flight over Dubai on a jetpack by Yves Rossy. The Swiss pilot and extreme conquered the world with his invention and was able to reach speeds of up to 193 km / h. Go to the suburbs and experience the drive, adrenaline and the delight of flying!
Flight on a jetpack in Moscow and the Moscow region at a price of 2,500 rubles. up to 8 000 rubles
How is the jetpack set up?
A jet pack or jetpack is an aircraft that is worn like a backpack. Water jets hit from the nozzles behind the back of the participant, which tears the person away from the water. Levers for speed, direction and height control are located on the sides under the arms for mobility. The flight on a jetpack takes place in a sitting position, which greatly facilitates the control process. Less balance and dexterity required.
In the 60s of the last century, the rocket pack was at the peak of popularity.
So, in the new film about James Bond - "Thunderball", the hero flew off the roof of the castle from the guards on the knapsack.
Is it safe to fly?
The jetpack flight takes place on the Jetpack Zapata Racing system. In addition to the "sitting" position during the flight, the seat has positive buoyancy, which keeps you afloat during a fall or stop on the water. The backpack is equipped with a five-point safety harness and a clamp releaser, which is operated by pressing a finger.
The transparent design of the nozzle system adds to the effect of the flight. So during the flight you will be able to see a powerful flow of water, which will allow you to fly.
Flight preparation:
It is difficult to operate a flying jetpack in Moscow; you cannot do without instructions and training on land. The instructor will introduce you to the device and its management, water safety and answer all questions that arise.
Then put on your wetsuit, helmet and life jacket. You will be taken to the water by boat and after that the development of the jetpack will begin.
Such entertainment is available only to adults weighing from 50 to 100 kg.
On a note:
The certificate is valid for 8 months. Be sure 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 with the organizers when recording.
Delivery of gift certificates for jetpack riding is free within the Moscow Ring Road the next day after the order. .
Flight on a jetpack in the suburbs
Wake club (Pirogovskoe reservoir)
The club is located on the territory of the recreation center "Troitskoye" in the waters of the Klyazma and Pirogovsky reservoirs. The club is located 7 km from the Moscow Ring Road along the Dmitrov highway. In addition to soaring above the water in picturesque places, each client will find an equipped beach, a cafe and a hotel.
Serebryany Bor
The reserved island-park, 20 minutes from the center of the capital, attracts with its location. Picturesque nature, many beaches and cafes allow you to fully relax. And flyboarding and jetpacking 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 jetpacks of its own production in 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 Gravity Industries, where he developed a jetpack, and in April of the same year presented his invention.
In July 2018, the device went on open sale. The Tony Stark-style flight suit is powered by five vertical flight jets, each rated at 22 kilograms of pressure and weighing 27 kilograms. The direction and speed of the jetpack is controlled by hand movements, and a display inside the helmet shows information about fuel consumption and other data.
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 the toy will have to pay 443,428 US dollars (about 28 million rubles), writes New York Post. In the meantime, Browning is handing out only copies bought in advance and made to order.
And here is Browning himself, flying near the sale.
The backpack runs on jet or diesel fuel, is capable of speeds up to 50 kilometers per hour and rise to a height of up to 3.6 kilometers. However, during a satchel demonstration near a department store, Browning hovers only a few meters above the ground, explaining this for safety reasons.
It consumes about four liters of fuel per minute when free-floating. Therefore, for three or four minutes you will be able to fly quite easily. We have another version - when flying on cold days, the thrust of the satchel increases, and it flies for about nine minutes.
Browning admits that backpack run times aren't perfect, and Gravity Industries is continuing research to improve them. In the meantime, for those who decide to buy a suit, the company offers to go free education on its use and first try yourself as a pilot on a 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 gentle. The knapsack flies passively, gently.
In the spring of 2017, Browning and his invention broke the world record and appeared in the Guinness Book of Records after the fastest flight in a flying suit in the history of mankind. At the same time, the speed of the flying Browning was 32.02 miles per hour (51.53 kilometers per hour).
Jetpack
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 by means of jet propulsion. Thrust is created by a jet stream ejected vertically downwards by the engine.
There are two main types of jetpacks:
- rocket-powered pack (rocket pack, rocket pack or rocket belt).
- a jetpack with a turbojet engine (actual jetpack, jet pack or jet belt);
Rocket packs are very simple in design, which is why they have become widespread. The classic Wendell Moore-designed rocket pack can be made in a private workshop, although this requires good engineering and high level locksmith skills. The main disadvantage of the rocket pack is the short flight duration (up to 30 seconds) and the high consumption of scarce fuel - hydrogen peroxide. These circumstances limit the scope of the rocket packs to very spectacular public demonstration flights. Rocketpack flights always capture the attention of spectators and are a great success. For example, such a flight was arranged during the grand opening of the 1984 Summer Olympics in Los Angeles, USA.
In subsequent flights, Graham worked out the technique of controlling the backpack and mastered more complex piloting techniques. He learned to fly in circles and turn around on the spot, flew over streams, cars, ten-meter hills, flew between trees. A total of 28 flights were made from April to May. Wendell Moore sought absolutely reliable work from the backpack and confident piloting from Graham, so that he would not fail 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, the satchel 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 3,000 members of the military department who watched with delight as Harold Graham flew over a passenger car.
October 11 of the year ( according to other sources - October 12) the satchel was demonstrated personally to President Kennedy during demonstration maneuvers at the Fort Bragg military base ( Fort Bragg). Graham took off from an amphibious LST, flew over a swath 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 with his mouth open in amazement.
Harold Graham and his service team traveled to many cities in the United States, visited 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 satchel was accompanied by a whole team of service personnel. For one twenty-second flight, up to 5 gallons (19 liters) of scarce hydrogen peroxide were consumed. According to the military, the Bell Rocket Belt was more of a showy toy than an efficient vehicle. The army's expenses under the contract with Bell Aerosystems amounted to $ 150,000, with Bell itself spending another $ 50,000. The military refused further funding for 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 device and principle of operation of the rocket pack
Rocket pack "Bell Rocket Belt". US Patent No. 3243144, 1966
All existing rocket packs are based on the design of the "Bell Rocket Belt" pack, developed in - years by Wendell Moore. Moore's satchel structurally consists of two main parts:
- Rigid fiberglass corset ( 8 ), fixed on the pilot's body by a system of belts ( 10 ). The corset has a metal tubular frame at the back, on which three cylinders are mounted: 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 on the back and lower back of the pilot.
- 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. On the right lever there is a rotary traction control handle ( 5 ), connected by a cable to the regulator valve ( 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 the rocket engine is based on the decomposition reaction of hydrogen peroxide. Hydrogen peroxide is used at a concentration of 90% (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 by 5000 times in less than 1/10 of a millisecond.
2H 2 O 2 → 2H 2 O + O 2
The reaction is exothermic, i.e. a large number heat (~2500 kJ/kg). The resulting gas-vapor mixture has a temperature of 740 degrees Celsius.
The principle of operation of the rocket engine
How a rocket engine works
The figure shows cylinders with hydrogen peroxide and a cylinder with compressed nitrogen (pressure of about 40 atm). The pilot turns the engine thrust control knob and the control valve ( 3 ) opens. compressed nitrogen ( 1 ) displaces liquid hydrogen peroxide ( 2 ), which enters the gas generator through the 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 the two pipes leaving the gas generator (the pipes are covered with a layer of heat insulator to reduce heat loss). Then the hot gases enter the jet nozzles (Laval nozzle), where they are first accelerated and then expanded, acquiring supersonic speed and creating jet thrust. The whole design is simple and reliable, the rocket engine does not have a single moving part.
Piloting a satchel
The knapsack has two levers rigidly connected to the propulsion system. By pressing these levers, the pilot causes the nozzles to deviate back, and the satchel flies forward. Accordingly, raising the levers causes the satchel to move backward. You can also tilt the propulsion system to the sides (thanks to the ball joint) to fly sideways.
The control with the levers is rather rough, for finer control the pilot uses the handle on the left lever. This handle controls the jet nozzles. Tips ( jetavators) are spring-loaded and can be deflected forward or backward with the help of flexible rods. By tilting the stick forward or backward, the pilot deflects the tips of both nozzles simultaneously to fly in a straight line. If the pilot needs to turn, he turns the handle, while the nozzles deviate in opposite directions, one forward, the other back, turning the pilot and the satchel around the axis. By combining various movements of the handle and levers, the pilot can fly in any direction, even sideways, perform turns, spin in place, etc.
You can control the flight of the backpack in another way - by changing the position of the center of gravity of the body. For example, if you bend your legs and raise them to your stomach, the center of gravity will shift forward, the satchel will tilt and also fly forward. Such control of the backpack, with the help of one's own body, is considered incorrect and is typical for beginners. The most experienced pilot Bill Sutor states that during the flight it is necessary to keep the legs together and straight, and the flight should be controlled using the levers and handles of the pack. This is the only way to learn how to competently pilot a satchel 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 deviate
On the right lever there is a rotary “throttle handle”. When stationary, it completely closes the fuel supply regulator to the engine. By turning the handle counterclockwise, the pilot increases the thrust of the engine. During the filling of the knapsack with compressed nitrogen, the handle is fixed in the locked position with a safety pin.
The timer is located on the same handle. Because the jet pack only has 21 seconds of fuel left, the pilot needs to know he's running out of fuel so he doesn't end up 10 meters high with empty tanks. Before the flight, the timer is set to 21 seconds. When the pilot turns the takeoff handle, the timer starts counting down and beeps every second to the buzzer in the pilot's helmet. After fifteen seconds, the signal becomes continuous, telling the pilot that it is time to land.
Features of flying on a rocket pack
The pilot of the pack is dressed in protective overalls made of heat-resistant material, since both the jet stream and the engine pipes are at a very high temperature. A protective helmet must be put on the head (it also has a signal buzzer inside).
When the rocket engine is running, the supersonic jet emits a deafeningly loud sound (up to 130 dB), more reminiscent of a piercing screech than a roar jet engine. The Rocket Pack is a very noisy aircraft.
As a rule, the outgoing jet stream is transparent and is not visible in the air. But in cold weather water vapor, which most vapor-gas mixture, condenses shortly after exiting 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 is visible if the fuel in the gas generator does not decompose completely, which happens, for example, when the catalyst is not working well or when the hydrogen peroxide is contaminated with impurities.
Modern versions of the knapsack
| Technical characteristics of the rocket pack | ||
|---|---|---|
| Bell Rocket Belt | RB 2000 Rocket Belt | |
| Flight duration | 21 s | 30 s |
| engine thrust | 136 kgf (calculated 127) | 145 kgf |
| Maximum flight range | about 250 meters | |
| Maximum flight altitude | 18 m | 30 m |
| Max speed | 55 km/h | 96 km/h |
| Curb weight | 57 kg | 60 kg |
| Fuel supply | 19 l | 23 l |
In 1995, the design of the satchel was improved. Three engineers from Texas, Brad Barker, Joe Wright and Larry Stanley, inviting professional inventor Doug Malevicy ( Doug Malewicki), built a new version of the rocket pack, which they called " RB 2000 Rocket Belt". The RB 2000 backpack basically repeats 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.
Turbojet Pack (Bell Jet Flying Belt)
In 1965, Bell Aerosystems entered into a new contract with the military agency ARPA - to develop a pack that would rightfully be called a jet pack - a pack with a real turbojet engine. The project was called "Jet Flying Belt", or simply "Jet Belt". Wendell Moore and John Nalbert worked on the project of a new, turbojet pack ( John K. Hulbert), specialist in gas turbines. Especially for the new satchel, 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 knapsack 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 satchel could stay in the air for up to 25 minutes and reach speeds of up to 135 km / h.
Despite successful tests, the army again showed no interest. The satchel was difficult to handle and too heavy. Landing a pilot with such a load on his shoulders was unsafe. In addition, if the engine was damaged, the turbine blades could scatter at high speeds, threatening the life of the pilot.
The Bell Jet Flying Belt satchel remained an experimental model. On May 29, 1969, Wendell Moore died of an illness, and work on the turbojet pack was curtailed. Bell sold the only copy of the satchel to Williams, along with patents and technical documentation. This satchel is currently in the Williams Research Corp. museum.
Features of the device turbojet pack
The Jet Belt 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 the compressor and divided into two streams. One stream goes to 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 separates and enters two pipes leading to the jet nozzles ( 2 ). The design of the nozzles allows you to deflect the jet in any direction. Fuel (kerosene) is in tanks ( 3 ) on the sides of the engine.
The control of a turbojet pack is similar to that of 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 turns the satchel. The right handle, as usual, controls the thrust of the engine.
The jet engine is started using a powder squib. On tests, a mobile starter on a special trolley was used to start. There are instruments for monitoring the operation of the engine and a walkie-talkie for communication and transmission of telemetry information to ground engineers.
A parachute is installed on top of the satchel ( 4 ) (using a standard amphibious reserve parachute). It is effective only when opened at a height of more than 20 meters.
Rocket pack in show business
In the 60s, the Bell Rocket Belt rocket pack was at the peak of popularity. The Bell company arranged demonstration flights in the USA and other countries, each time causing delight of 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 on the roof of the castle and flies away on a previously hidden rocket pack.
Two satchels were involved in the filming of the film. One, a fake one, can be seen on Sean Connery in close-up scenes. The second was a real Bell Rocket Belt and flew live. It was flown by Bell pilots Bill Sutor and Gordon Yeager ( Gordon Yaeger). The scenes with Sean Connery and the satchel had to be filmed twice, because the first time he was filmed with his head uncovered, and Bill Sutor, who dubbed him, flatly refused to take off without a protective helmet. During the dubbing of the film, the real shrill roar of the engine of the knapsack was replaced by a hiss
It seems that the time is not far off when a jetpack will be behind 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 over 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, no significant success has yet been achieved. With renewed vigor, the development of jetpacks was taken up in the 80s, and then with the beginning of the 21st century. The first most successful sample was introduced in Australia in 1984. An experienced satchel was able to stay in the air for a little more than 30 seconds.
To date, several teams are working on the creation of jetpacks. One of the most striking recent projects has become Martin Jet Pack. The aircraft, however, is very far from the very futuristic jetpack that most people imagine. On the other hand, he became the first "knapsack" capable of keeping 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, he was one of the people who worked on the Australian science team in the 80s. And it was the backpack of his team that made the first successful full-fledged flight. Maiman himself has been working in this direction for more than 45 years. The new brainchild of David Maiman's team was named JB-9.
The first thing that the businessman noted in an interview was that this "knapsack", hinting at the fact that the vast majority of related developments from other teams are not knapsacks. Much of the JB-9's structure is made from carbon fiber and other composite materials. The backpack can carry out vertical takeoff and landing, is controlled by two manipulators, and rises into the sky with the help of two engines. The pilot is fastened 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. Maiman says the duration of a flight depends mainly on the weight of the pilot. Altitude, air temperature and a number of other, less significant factors also affect. The JB-9 tank holds 10 gallons of fuel. A backpack “eats” about one gallon per minute. The fuel is kerosene - cheap, easy to manufacture and relatively safe.
Undoubtedly, even James Bond would envy such a backpack. JB-9 can rightly be included in .
» Jetpack - do it yourself or buy
A jetpack is a technological device thanks to which people managed to learn how to move in space in a non-standard way. A jet pack is a prototype of a rocket engine. Structurally, the device is made according to the same technologies for generating thrust due to dumping reactive gases. But the peculiarity of the jet module in the form of a knapsack is that it is applicable only for one person. So, is it possible to make a jetpack with your own hands?
As always, it all started with fantastic 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 from the 20s of the last century, with the continuation of the techno epic to the present.
Tests of the invented rocket packs, as a rule, take place with the participation of volunteers. A rare engineer-inventor is willing to take the risk of personally testing such controversial equipment. The theme of rocket packs is exciting modern society incredibly. In the future, there are already massive sales of rocket modules for personal use and endless queues for such installations. The backpack boom is comparable to the beginning of an era. Only here the bets on jetpacks cannot be compared with automobile ones.
The rocket pack for personal use was first mentioned in 1928. Then a popular magazine publication published a fantastic novel "Armageddon 2419" on the pages of the next issue. plot picture Rocket packs received a lot of attention as a means of transportation in the near future. In fact, the author of the story was 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 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 on his back.
So far, a person flying without problems can only be seen on the film sets of Hollywood directors who make fantastic 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 the devices of the first type is distinguished by a simple execution scheme. This factor has become the reason for the high popularity of the Rocket Belt.
If desired, even the possibility of assembling a classic design in handicraft production is not ruled out. But the advantageous factor of the Rocket Belt nullifies another point - a significant limitation of the flight time.
The record figure 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 devices such as Rocket Belt has so far been outlined 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 more advanced than the one in the picture. Capable of moving a person through the air for about 1 hour Elements of the rocket module Rocket Belt:
- durable corset (fiberglass),
- strap system,
- chassis based on light metal tubes,
- a couple of cylinders of hydrogen peroxide,
- bottle filled with compressed nitrogen
- missile module on hinges.
Elements of the rocket module (Jet Belt):
- gas generator,
- jet nozzles (2 pcs.),
- control levers (2 pcs.),
- swivel pull,
- fuel control mechanism
- jet nozzle control mechanism.
Jetpack: Technology Fundamentals
The rotary rod raises the fuel filling valve. Gaseous nitrogen 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 an active contact of silver plates treated with samarium nitrate and hydrogen peroxide that filled the chamber.
Test flight among skyscrapers with rocket pack Rocket Belt The contact is accompanied by an active reaction and contributes to the rapid formation of a vapor–gas mixture. The resulting steam-gas medium of high temperature and pressure rushes through the channels to the area of jet nozzles.
Here, the gas mixture expands sharply, gets accelerated to supersonic speed, and is thrown out. The effect is created jet thrust, due to which it is permissible to influence the object, in particular, to lift the object into the air.
Turbojet version of the device (Jet Belt)
The device of a slightly different configuration - a turbojet pack for personal use, was invented in 1969. The prototype WR-19 turbojet block, weighing 31 kg, was created by engineers Wendell Moore and John Halbert.
Experiments with this modification of the turbojet pack continue to this day. There are positive results, but equipment costs do not allow launching a turbojet pack into mass production. The first tests of the Jet Belt prototype were carried out the same year and received interesting results - a flight of a distance of 100 meters at a height of seven meters.
Jet Belt energy is based on the mixing of kerosene and air. The mixture is compressed to several tens of atmospheres and is fed by a compressor into the working chamber - one of the two working compartments of the apparatus. The second compartment is allocated for the cooling module, which constitutes the cooling circuit of the combustion chamber.
The air-kerosene mixture, filling the combustion chamber, 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 stream.
The design of the turbojet action is characterized by a pronounced efficiency. This setting shows the best flight parameters: duration, acceleration, altitude. But turbojet packs are inherent in the complexity of the system and significant financial costs of production.
Do similar devices even more so with your own hands. This requires unique equipment and specialists. Unless if you only try to build a rocket launcher on your own purely for the purposes of the experiment.
Do-it-yourself jetpack
The experimental design of the jetpack, in fact, is made by hand within one to two working days. For the production of equipment, it is enough to have standard locksmith skills.
Here is such a relatively simple installation from a constructive point of view, it is quite possible to do it yourself in a couple of days. There is no need for professional knowledge Kit necessary details homemade device significantly different from the set that is required for the production of really "lifting", professionally made models. The assembler will need:
- Two metal nozzles.
- Steel strip (400x40x5).
- Sheet of tin (500x500x0.7).
- Studs steel (2 pieces), bearings (4 pieces).
- Propane tank (small displacement).
- Gas distribution manifold.
- Two small-sized electric motors for 12V.
- High pressure hose.
- Radio control system.
The key point in this matter is homemade assembly jetpack as part of the experiment allows you to better understand the principle of operation of devices of this type. Also, a potential assembler will be able to essentially assess the possibilities of implementing the project.
Turbine scheme: 1 - intake blade; 2 - high pressure compressor; 3 - high pressure compressor shaft; 4 - high pressure turbine; 5 - low pressure compressor; 6 - shaft of low pressure compressor; 7 - combustion chamber; 8 - low pressure turbine; 9 - nozzle It should be noted: the work of assembling equipment is quite dangerous, associated with the practice of using combustible substances. Therefore, before attempting to repeat an experiment, all necessary safety precautions should be taken.
Preparation of component parts and assembly
Nozzles suitable for a jetpack turbine can be found on old processing equipment that was used, for example, in the dairy industry. So, the designs of old cream and milk dosing machines contain a lot of suitable parts.
These are the parts taken from the old equipment, after appropriate processing, they are easily transformed into nozzles for the power turbine of the future aircraft Old, rusty nozzles must be cleaned, carefully processed, sanded. These operations are easy to carry out on widely used instrumental equipment. On the sidewalls of the nozzles, holes will need to be drilled to connect the bushings of the gas distribution manifold.
Small-sized electric motors are placed inside the nozzles of the jetpack. The motors are equipped with a long shaft, along the entire length of which a row of impellers is placed. The impeller shaft is fixed on the installed support bearings. The shaft is made of metal studs, and the impellers are made of sheet metal.
Impellers of different diameters are made from sheet metal. A round shape is cut out, divided into sectors, then working 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 the gas distribution manifold.
Details of the gas distribution manifold are machined on lathe. Hollow threaded bushings made with my own hands are easily assembled into a single structure.
In this way - by conventional drilling with a drill, hollow bushings of the gas mixture distribution manifold are made. A thread is cut for the inter-sleeve connection Also, the collector design contains:
- check valves,
- nozzles,
- gas mixture ignition mechanisms.
Gas (propane) enters through the collector into the working area of the jetpack nozzles from a small-capacity propane cylinder. The volume of the balloon is enough for 30-40 minutes of intensive action.
Fan control system
By adjusting the speed of rotation of the impellers of the fans (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 to control the speed of rotation of the turbine electric motors. Transceiver radio equipment is used, which is equipped, for example, with children's radio-controlled toys The module of the receiving-transmitting device can be bought ready-made. Quite suitable transceivers are sold inexpensively through popular online stores.
The fan motors are connected through the controller circuit to the signal receiver. gas mixture ignition system.
The transmitter in the framework of the experiment is located at an arbitrary distance. Subsequently, if it comes to a real takeoff, the device will be fixed on the pilot's body.
Jetpack testing
That, in fact, is all. A self-made jetpack has been successfully tested at home. True, an ordinary trading steelyard acted as a load moved in space.
With the help of a simple device - electronic scales, it was possible to determine the power of a do-it-yourself jetpack. As you can see on the display of the scales, the traction force was a little more than 6 kg Judging by the scale of the steelyard, the thrust force of the turbine assembled by one's own hands did not reach the value of 10 kg a little. Nevertheless, even such a test result allows us to hope for the future. Reliable really able to turn reality. Videos to prove it
