You don't have to be Jay Leno to own a jet powered motorcycle, and we will show you how to make your own jet enigne right here to power your wacky vehicles.
This is an ongoing project, and plenty of additional info will be available on our website soon. Building your own jet engine can be dangerous. We highly suggest that you take all appropriate safety precautions when dealing with machinery, and use extreme care while operating jet engines.
Serious injury or death can occur while operating a jet turbine engine in close proximity, due to explosive fuels and moving parts. Extreme amounts of potential and kinetic energy are stored in operating engines. Always use caution and good judgment while operating engines and machinery, and wear appropriate eye and hearing protection. Neither Bad Brothers Racing or Gary's Jet Journal accept any liability for your use or misuse of the information contained herein.
Did you use this instructable in your classroom? Add a Teacher Note to share how you incorporated it into your lesson. I started the build process of my engine with a design in Solid Works.
I find it much easier to work this way, and creating parts using CNC machining processes turns out a much nicer end result. The main thing I like about using the 3D process is the ability to see how the parts will fit together before fabrication, so that I can make changes before spending hours on a part. This step is really not neccesary, as anyone with decent drawing skills can sketch out the design on the back of an envelope rather quickly. When trying to fit the entire engine into the final project, the jet bike, it will certainly help a lot.
I would also suggest that to get the best answer to questions if you are attempting to build a jet engine or turbine based project, subcribing to a user group is the way to go. Use care when selecting your turbocharger! You need a large turbo with a single non-divided turbine inlet. The bigger the turbo, the more thrust your finished engine will produce. I like the turbos off of large diesel engines and earth moving equipment. The use of one of these turbos will yield enough thrust output to move a vehicle of some sort pretty well.
It is best to buy a rebuilt unit if possible. Ebay is the way to go here, as you can really save some money. As a general rule, it is not so much the size of the whole turbo as it is the size of the inducer that matters. The inducer is the visible area of the compressor blades that can be seen when looking at the turbo's compressor with the covers housings on.
Looking at the turbo here will show that the air inlet is quite large at almost 5 inches in diamter, while the visible blades of the inducer are only 3 inches in diameter. This is plenty for creating enough thrust to drive a mini motorcycle, go kart, or other small vehicle. The turbo in the picture is a Cummins ST off of a big 18 wheeler truck. Here is a quick rundown of the process of how the jet works and how to figure the size of the combustion chamber you will be making for your jet engine.
The combustion chamber works by allowing compressed air coming from the turbo's compressor to be mixed with fuel and burned. The hot gasses then escape through the rear of the combustion chamber to move through the turbine stage of the turbo where the turbine extracts power from the moving gasses and converts them to rotational shaft energy.
This rotating shaft then powers the compressor attached to the other end to bring in more air to make the process continue. Any additional energy left in the hot gasses as they pass the turbine create thrust. Simple enough, but actually a bit complicated to build and get it right.
The combustion chamber is made from a large piece of tubular steel with caps on both ends. Inside of the combustion chamber is a flametube. This flametube is made of another smaller piece of tubing which runs the length of the combustion chamber and has many holes drilled in it.
The holes allow the compressed air to pass through in certain ratios which are beneficial for 3 steps. Step one is mixing the air and fuel.Classic Wooden Boats. I have tried to include the plans which are not available on other sites. A collection of free steam engines plans including all of Elmer's engine plans. Easy to build wobbler steam engines up to very complex multi cylinder engines, wood beam, scotch yoke, marine and many more.
Most of these projects can be built with a mini lathe and drill press and normal hand tools - no castings are needed. The easy engine plans use bar stock for all parts and the more advanced steam engine plans will require extensive cutting and filing if no mill or CNC machine is available. See my page on Live Steam Engines in Thailand - www. A growing collection of basic jet turbine plans and littered with other jet related info and photographs of my first engine and my current engine project.
I have built two model jet engines, the first being a Shreckling. Also free Gluhareff Pressure Jet Plans and instructions for download. Free Pulse Jet plans are available for download on this page. A photo album of normal pickup truck and small trucks that are overloaded.
How to Build a Pulse Jet
Has to be seen to be believed - some must be record holders. A series of photographs and slide shows showing some of the overloaded vehicles that I have managed to photograph over the last couple of years in and around Bangkok.
Take a look at the sport of paintball and the related combat survival games in Bangkok Thailand and the surrounding areas. Plans for a full scale M2. Videos and Photographs of my hovercraft - free plans for RC and full size craft. Detailed Photographs of my home built hovercraft and RC hovercraft with plans and instructions for bag skirts and finger skirt construction.
Watch the test videos of my Radio Controlled Hovercraft and the improvements made with each new model. Full Sized hovercraft plans and the build log to go with it - free download plans and instructions to build a hovercraft and RC Hovercraft Plans. A few of my aircraft with some comments and set up info along with plans for scratch building your own RC Biplane. Very fast, no helmets, no life jacket and no engine cut off - just pure drag racing with cc engines in a boat most would consider a model - then there is the unlimited cc twin cylinder class - click the picture for more.
The Thai Stepped Hull Hydroplane model plans are now available here. Ghille suits and camouflage tactics are covered in this ongoing project to improve on DPM camouflage systems.
Realistic decoy homemade from workshop scraps. Make a large scale RC Battle King Tiger tank from scratch - free plans and instructions with detailed build pictures. Free Boat Plans and sailing ship plans with build pictures of a semi scale 1. Catch reports and General Info and recommendations with Tackle set ups and Contact numbers for recommended Fishing Guides if you go alone and for Thai Fishing Tour Companies if you want the better way - Also photos and videos of my catches and experiences.
Remote control Flying in Thailand, reviews of airfields around Bangkok with pictures and panorama photographs and gps co-ords. Google Earth kmz file are included for most airfields. RC Clubs on the increase in Thailand and over the last 5 years the number of organized flying clubs in Bangkok has gone from 2 to over 6 in See RC Thailand - Outdated.
Radio Controlled Crawler Crane project - a lattice boom scale replica of a 40t crawler crane - Plans are now available for building your own RC Crane. Pneumatic Airgun Air Rifle Plans.
Browning Machine Gun. Maschinengewehr 42 - MG 42 Machine Gun.Both are made of mild sheet steel, thin enough to form by hand with the simplest tools. Start with a well-proven design, like Cottrill's focused wave pulse jet engine. This is a valveless pulse jet designed so that the combustion chamber consists of nothing but a long cone flowing into the tailpipe. Get the plans here.
Cut gauge mild sheet steel, tracing a pattern with aircraft snips, to fabricate a two-piece combustion chamber. Using a pipe anvil and mallet, roll a long open cone. Use the mallet to form a blunt dome to cap the cone. Weld each cone's seam. Drill a hole in the dome's tip and weld on a spark-plug mount nut.
Cut and file an exhaust tailpipe and an intake pipe from lengths of thin-walled tubing. Use a ball-peen hammer to flare both end. Weld the dome and the tailpipe onto each end of the combustion cone. Cut a hole in the cone side for a port to fit the intake pipe. Fit the rig onto a Bukowsky mount.
Arrange a propane torch so the flame goes across the tailpipe opening. Light it and blow air in. Cutting Metal: "Working with sheet steel itself can be hazardous," Cottrill says. A friend of mind got his hand severely cut incuding nerve damage when a drill caught and spun a piece out of his control.
The safest way to drill sheet metal is on a drill press at low speed with the sheet clamped firmly to the drill press table. Running Your Pulse Jet: "Always double-check that your engine is solidly mounted before trying to start it," Cottrill says.
Make sure there aren't flammables nearby, especially behind your engine. Plain steel engines can throw sparks occasionally while running—they come out like little white-hot bullets—so make sure you're not going to cause a grass fire behind your engine.
Noise: "Pulse jets can damage your hearing permanently if you are within a few feet of it," Cottrill says. He wears foam plugs and hard shell muffs as hearing protection while testing or running an engine.
Some communities have strict noise ordinances, and you can expect to get into trouble if you violate it with your engine. Check with local authorities to find a suitable location or a noise-friendly time of day.
Bukowsky Mount: A simple rack that uses a hose clamp to secure the tailpipe to a rear bracket while the spark plug connects to a front bracket. The mount prevents the engine from moving when ignited, and a built-in heat shield protects the operator. This was designed in by a high school student, Steve Bukowsky, for his original build of the prototype focused wave valveless pulse jet.
Combustion Chamber: The main engine space in which explosions take place. It is always the location of maximum positive and negative pressure swings in the engine, while in most of the chamber the gas velocities will remain relatively low.
Typically, explosion gases are replaced with fresh air and fuel mixture throughout only a small part of the chamber. Deflagration: This is the proper technical term for the type of explosions inside a running pulse jet.
The term "detonation" is incorrect for pulse jets; it indicates a much more violent and rapid explosive action. The term "explosion" is acceptable for ordinary discussion, though it is technically too general a term. Flame-Out: Even after you get your engine running well, it is possible to open up the propane so much that the engine can't breathe enough air to keep up with it. When this happens, the engine "flames out" - it stops roaring, and instead of impressive blue flame flying out of the tailpipe, you'll suddenly have a large, billowing yellow possibly sooty flame that can actually envelop the whole engine.
If you're running your engine and it suddenly stops roaring, you MUST shut down propane flow immediately! And, always have an A-B-C type fire extinguisher handy while testing, just in case something gets ignited. Flare on Intake or Tailpipe : An important action of the intake and tailpipe is to acquire outdoor air as rapidly as possible once the engine interior pressure starts to drop in each cycle.The pioneer of these mini-engines is probably the American engineer Max DREHERwho in the s built a series of small turbines for military or civil applications.
The French company JPX is probably the one that launched their use on a large scale at a global level for model makers. Since then, competed by many other global companies, JPX has disappeared from this sector to refocus on piston engines for general aviation. The turbojets presented here are those which have equipped an airplane with some exceptions, as for the fantastic work of Yves ROSSY and some advanced projects. AMT Netherlands designs and manufactures small jet engines for the propulsion of radio-controlled flying aircraft, experimental aircraft development, sound studies and full size gliders.
This well-known German company produces a very complete range of small jet engines. The P equipped a glider from the early s. Applications : Ventus CtT et 2cm. Blanik, Cricri Jet, Schwei. Mr Max Dreheran engineer in aeronautics, studied and built a series of small turbojets between and The Cobra was designed by D.
James and J. Originally this project was not intended to fly. But its performances were recognized, and it was chosen to equip the MCJ Cricri of Yves Duval as well as numerous radio-controlled models. Its production was stopped in Sauter la navigation Jet engine from 0 to Kg thrust Class. Since then, competed by many other global companies, JPX has disappeared from this sector to refocus on piston engines for general aviation The turbojets presented here are those which have equipped an airplane with some exceptions, as for the fantastic work of Yves ROSSY and some advanced projects.
Turbojet engines sorted by power rating and year. AMT Netherlands. Dreher Engineering Company. This company discontinued its operations. James Engineering Turbines Ltd. Contact Minijets.That mindblowing experience now has led me to the whole gammet of all the Gingery books so that now I am collecting aluminum like crazy.
If somebody does object I guess I'll have to pull it. First, how it works : Petrol or White Spirit cigarette lighter fuel is induced to spray through a metering jet by a fast airflow into the nose cone. Immediately after combustion the burning gases pass through the only exit, the tail pipe, and the resultant reaction provides thrust. So the cycle repeats itself in a series of pulses, each. Because of the fire risk, and the possibility of personal danger, pulse jets are neither to be advised for free-flying nor are they tolerated for such a purpose in Great Britain.
They are, however, insurable under a special scheme by the S. Current record is Making the Jet. All dimensions on the drawing are in millimetres, and for the convenience of British constructors we provide a table of required equivalents.
Start with part 1. The pilot jet, part 2has a I mm. It is advisable to make a set with. The head — or cone, part 4is a light metal turning threaded at the rear to fit the collar in the combustion chamber. Care to adhere to the aerodynamic curve, and external relieving to give a wall thickness of 2 mm. Note that a 3 mm. Part 5 is a simple light alloy fairing to blend the carburettor to the valve plate, part 6and this latter item is turned from the solid in mild steel.
There are ten valve holes, each 9mm. The valve itself, part 7is the heart of the jet, and as such is a most critical component. Mass production by means of a steel die and hard rubber blanking plate would be one answer to the valve replacement problem.
To limit the opening of the valve, part 8 is a backing plate from dural, and here again it is advisable to make alternatives with different curvature to test for optimum performance. Part 9 is merely a standard metric thread bolt to hold the valve assembly together. Part 6 is peened in place in the head, see detail at 12and a light alloy nose fairing, 10riveted as a cone before being "clicked" in place between shoulders.
All that remains is the tail pipe, of welded heat-resisting or stainless steel, thickness is not critical between. Weld a steel collar in the combustion chamber, and thread to suit the head. Now mount the unit by means of metal collars to a stout board and prepare for first tests. With fuel in the tank, and a car pump connected to the adapter, part Istart pumping with alternate long and short strokes, checking that fuel is drawn through to the carburettor.
There is no such thing as a "misfire" in a pulse jeteither it is going or it is stopped. If the jet appears to show no inclination to keep going, then one should try variations with a the pilot jet and b valve backing plate.
A low tone indicates a rich mixture and a high note, or short, barking tone, a weak mixture. Hot weather calls for a larger pilot jet. Extreme cold a small jet Having made your own unit, you will soon appreciate these symptoms and their cures.
Did you use this instructable in your classroom? Add a Teacher Note to share how you incorporated it into your lesson. Reply 8 years ago on Introduction. The beauty of these things is that it can run on anything that can burn, and you can attach it to a rc plane, go kart anything really.United Nuclear Jet Engines.
Building and working with Jet Engines are fantastic projects that leave you with an extensive knowledge of turbine engines and the theory behind them - as well as a small but powerful engine that can power just about anything from Go-Karts to small boats.
These homebuilt Turbine Jet Engines are fully throttleable that spool up and spin down sounding like their larger military jet engine cousins. The maximum thrust essentially depends on the size of turbocharger you are able to obtain. The J can either be built from scratch, or you can buy completed components from us and piece it together much more easily.
The turbocharger is the most expensive part of the engine and the remainder of the materials required to complete the engine are fairly inexpensive if you fabricate them yourself. Depending on your budget and application for the engine, you can upgrade the engine performance by afterburning it, or add on a multitude of additional features and capabilities.
Properly built using a decent sized turbocharger, the J can have a maximum thrust up to about pounds. The J Jet Engine will be available in kit form, as individual parts, or you can simply order the plans and fabricate everything on your own. Components will be available in early Spring Check back here for updates. Jet Engine Plans. We offer 3 different sets of Jet Engine Plans. The J Plans are for building the turbocharger based turbine jet engine mentioned above.
The plans are in 8. First of all, they have no moving parts whatsoever. They are known as 'Pressure Jet Engines' and have also been called 'Static Ramjet Engines because they produce power statically when they are stationary where true Ramjet engines only produce power when moving at very high speed. At the present time, we do not sell J or J engines or parts, only the plans.
The engines are fabricated from just sheet metal and tubing. Beingfull size drawings, these plans can simply be placed on top of your sheet metal and the parts cut right out. It is a great metal shop project for the more advanced hobbyist. The engine does get red hot during operation so it cannot be built into an enclosed area unless copious amounts of ventilation are provided.What is Aeronautics? Download Real Media 56k k.
Download Windows Media Player 56k k. We take for granted how easily a plane weighing over half a million pounds lifts off the ground with such ease. How does it happen? The answer is simple. It's engines. Jet engines move the airplane forward with a great force that is produced by a tremendous thrust and causes the plane to fly very fast.
All jet engines, which are also called gas turbineswork on the same principle. The engine sucks air in at the front with a fan. A compressor raises the pressure of the air. The compressor is made with many blades attached to a shaft. The blades spin at high speed and compress or squeeze the air. The compressed air is then sprayed with fuel and an electric spark lights the mixture. The burning gases expand and blast out through the nozzle, at the back of the engine.
As the jets of gas shoot backward, the engine and the aircraft are thrust forward. As the hot air is going to the nozzle, it passes through another group of blades called the turbine. The turbine is attached to the same shaft as the compressor. Spinning the turbine causes the compressor to spin.
The image below shows how the air flows through the engine. The air goes through the core of the engine as well as around the core.
How to Build Your Own Jet Engine
This causes some of the air to be very hot and some to be cooler. The cooler air then mixes with the hot air at the engine exit area. Thrust is the forward force that pushes the engine and, therefore, the airplane forward.
Sir Isaac Newton discovered that for "every action there is an equal and opposite reaction. The engine takes in a large volume of air. The air is heated and compressed and slowed down. The air is forced through many spinning blades. By mixing this air with jet fuel, the temperature of the air can be as high as three thousand degrees.
Make a Pulse Jet Engine, (Scanned From 1958 Plans)
The power of the air is used to turn the turbine. Finally, when the air leaves, it pushes backward out of the engine. This causes the plane to move forward.