Pretty much all of these model turbojets are based almost directly on the ole KJ66 design, which can be found on the net if anyone wants to build one themselves. Good luck crafting your own superalloy exhaust turbine though. . .
@@juergenengelmann4629 In fact this already happens in a way because some parts can be so mathematically complicated that they can't be done by hand anymore.
You forget that the guy whos doing the adjustments is not a CNC machine but instead is being advised by a computer. It's hard to imagine life before COMPUTERS. That is, without a doubt, THE greatest invention of all time. CNC machines are COMPUTERS.
The life before the CNC is still acceptable but not so fast. Things are still possible to be made. There are still lots of manual milling machines works today. It is a matter of cost, the CNC itself is very expensive, but it saves time and labour.
the reason they are so expensive, is kind self explanatory, its a jet engine not much different than that of a real jet engine, so the workers putting it together probably make a pretty good pay check and in the video it said it takes 6hrs to make one, add that with an hourly wage and then the work involved in paying CNC machinists to make the parts, it gets a bit costly sure building just one by yourself would be a lot cheaper but remember they also have to make a profit on them
Jetcat, are you shitting me? 1:30 on, this person is bleeding all over parts of the engine. And you ship your engines out like this? Covered in a biohazard? And this passed editing?!?!
Because it's not just a matter of buying metal and cutting it! What you're paying for is 1% metal, 20% machining time, and the rest is technical knowledge and human problem-solving effort. These are NOT like model glow plug piston engines--there is a *lot* to them, they are very design and development-intensive pieces of machinery! It took a lot of really smart people a huge amount of effort to make these things work, just so people can burn money and kerosene flying their models :)
These would produce no thrust without combustion. What powers the compressor and turns produces thrust is the difference in velocity that the air goes through because of the combustion.
When you rotate these engines to well over 100,000 RPM, several considerations go up exponentially; the weight of the turbine blades, the significance of balance on the turbine wheels, and the legal liability for JetCat if one of these little missiles come off the wheel and enter your head! Liability, engineering, metallurgy for components, CLC machines, and other factors run the cost up-only if you plan to make a profit from the business....or you could buy parts at Ace and make one yourself.
1) This appears to be made in the USA, which is very weird. 2) Has someone used these engines in an Ironman flying exoskeleton suit? I know that an arc reactor would be preferable to a mini gas turbine, but no one has invented an arc reactor yet.
Did any one else notice the horrendous porosity in the cast compressor wheel as he was balance grinding it? I could be wrong but the little black marks looked like pitting or some kind of inclusions in that alloy where he was die grinding it.
You should check out the channel AgentJayZ, that guy is a Gas turbine engine technician, and he knows a lot more than me on the matter. He has a lot of videos explaining how jet engines work.
Well, it depends on the thrust output. Model turbines usually range from 5 to 50 pounds of thrust. Larger models are capable of pushing a bike forward like nothing.
@@gersonboav1 The CNC machines make everything sharp. Sharp corners, sharp edges, blades, etc. It's a machine unawre of it's purpose, what the heck it's doing, and what it is. And the people assembling these sharp precision parts could get cut.
I was thinking the opposite, how cheaply these could actually be produced... These things sell for $2500 to $12,000. What cost is there in 6 hours, $400 maybe in parts, materials and labor?
on some engines the technician putting it together will sign a plaque. These guys just use the technician's blood spot as signature. You can't fake DNA as proof of who built that engine.
I wonder what Sir Frank Whittle would think if he was still alive to watch this documentary? Without any funding he spent years developing the jet engine virtually on his own in a shed in 1930's England; his first huge engine only produced around a 1000 lbs of thrust and now this little toys (no disrespect) models produce around 30 something lbs, the mind boggles! Good old Sir Frank RIP.
Compared to the cost of a full size jet engine with price tags of several million Euro's, the price tags of these model jet engines costing only a few thousand Euro are peanuts in comparisson.
Seeing this I actually have a lot of respect for the Germans. As bad as they might have been during WOII, it is simply mind boggling what kind of achievements they made from 1940-1945, jet bombers, fighters, and even a jet driven stealth fighter that looks amazingly similar to the modern stealth attack drones like the nEURON and X-47. And they did all of that while none of the Allies even managed to produce a single jet powered plane. Or how the Germans invented and produced cruise missiles (V1), ballistic missiles (V2), guided bombs (Fritz X), and SAMs (Wasserfall). Simply amazing!
Where do you think they get those compressor blades from? Old cars? Looks like they only mill about 3 precision parts themselves (aside from the electronics and other minor components)... And this engine is $3,000! LOL!
Chameleon, the problem is that axial flow engines are nearly impossible to scale down to this size. Its been done once, I think, successfully. And the cost would beyond what your average joe could afford because of the technology that goes into making it. This level of tech is enough for the people using it and keep them in a price range that most people can figure out a way to afford it
So many "experts". Build a better engine for less money and sell it yourself. It's the beauty of Capitalism; it gives us all better products at lower costs. Now you have a goal and a business plan. Of course you will find out it is not as easy as a few blades from old cars, 3 precision parts and other minor components etc. The world is over-crowded with fools.
Rick Halverson you can buy a new motorcycle for just 1000$ more. If you think that is cheap or that capitalism always makes things cheaper and better than you sure haven’t heard about a monopoly.
Ok, great work. But they need "only" 6 hours to build one and then they sell it for 3000-6000 bucks. I think they cost too much. Material and work together should be max. 1000 bucks. It would be great, if the prices for RC turbines decreases in future. If they would do huge numbers of these and would automate the production process, they could cost about 500 instead 5000 and affordable for more people.
well the demand is not that high so they can ask more for it. And then you need to add the man hour it takes to build on and the engineering that went in to it. you can't really make an automated process of the because some of the parts are to small and assembly is to small and complicated for the most parts
They didn't say this was a Centrifugal jet engine, not an Axial flow engine. As you see the Centrifugal engine is actually quite simple in comparison to an Axial flow. In part it makes the engine easier to maintain and more reliable in that there are fewer parts. Honestly these engines do kick ass and I believe these were the engines used on that Swiss guys wing pack, the one where he jumps from a plane and flies with it before having to use a parachute to land. Sorry I cannot remember the name of the man who flew the Wing Pack but it uses 4 of these engines. All I can say is I am impressed at how simple and clean these engines are mechanically. In remote control it is hard to find better. You also are looking at the high end of Remote Control. This is the power plant of choice for the REALLY big R/C airplanes.
Who sells these nice little engines? One of them in a working environment would be spectacular exhibit like Gluhareff's 1960s vintage pressure jet engine in the California Museum Of Science & Industry.
JetCat...here is a link to a vendor. My router is barking that JetCat's US site has malware... www.dreamworksrc.com/catalog/Turbine-Engines/Jetcat-74/Jetcat-Engines
It was these things that inspired me to start building a turbocharger based jet at home. I had no intent in making it "fly". I want it to just run. And it does.
I just cant understand, that plastic tube or other wire parts are not melting when the turbine works? Its release a lot of heat when it operating, how they could be possible working on that temperature without burning?
I guess these engines are made at the moment they are ordered because of the hefty price tag (because of the intricate engineering) and the low demand (not that many customers for this beautiful piece of technology).
Turbine parts are not cast in molds, they are just machined from raw titanium and aluminum. Molding would be a waste of time since it would still then have to be machined to make sure it is exact. The tolerances of all the parts is too extreme for molding to be cost effective, It would just end up slowing the builds and costing more.
i just dont get why that jet engine has to be so fricking expinsive. it looks like it would atleast be 500 bucks. with only that many parts and equipment. and the time it takes to build... jeez
These engines are really over priced imo. These thingsncould easily be made for a few hundred bucks a piece, but people continue to blow wads of money on them so they just keep on charging a fortune with not much motivation to lower the prices. The truly 'elite' snobs of the rc hobby. They usually never help anyone at the field or hang in out genuinely with regular fliers, seen it time and time again.
is it me or is there a broken fin on the rear blade at the end of the video.so much for quality control jet cat.these engines are way over priced i looked into one of these in the late early 90s it was 1/2 the size of this one and they wanted $3,500 then the unit shown must be 5-6000 at least
LE TURBINE e ad reazione come motori propulzori aereonautici sono insostituibili e poco modificabili sono gia al top,x sostituirli ci vorrebbero degli accelleratori moecolari o graviazionali MA avete da aspettare moltooo....
Pretty much all of these model turbojets are based almost directly on the ole KJ66 design, which can be found on the net if anyone wants to build one themselves.
Good luck crafting your own superalloy exhaust turbine though. . .
Which is why we exist.
It's hard to imagine life _before_ the CNC machine. That is, without a doubt, one of the greatest inventions of all time. In it's self.
imagine that day, when a machine could reproduce itself.
@@juergenengelmann4629 there's this video called how people think CNC machines work.... Humans aren't going anywhere
@@juergenengelmann4629 In fact this already happens in a way because some parts can be so mathematically complicated that they can't be done by hand anymore.
You forget that the guy whos doing the adjustments is not a CNC machine but instead is being advised by a computer.
It's hard to imagine life before COMPUTERS. That is, without a doubt, THE greatest invention of all time. CNC machines are COMPUTERS.
The life before the CNC is still acceptable but not so fast. Things are still possible to be made. There are still lots of manual milling machines works today. It is a matter of cost, the CNC itself is very expensive, but it saves time and labour.
Great video. Amazes me how he's working passionately even with all the blood.
It’s like a tiny modern goblin engine. single turbine and a single stage centrifugal compressor.
For once people record tv shows in something different from 480p or lower
but the audio is still a topic left untouched
Bloody good show!
Why do people "dislike' such a nice video?
the reason they are so expensive, is kind self explanatory, its a jet engine not much different than that of a real jet engine, so the workers putting it together probably make a pretty good pay check and in the video it said it takes 6hrs to make one, add that with an hourly wage and then the work involved in paying CNC machinists to make the parts, it gets a bit costly sure building just one by yourself would be a lot cheaper but remember they also have to make a profit on them
The precision is amazing
Jetcat, are you shitting me? 1:30 on, this person is bleeding all over parts of the engine. And you ship your engines out like this? Covered in a biohazard? And this passed editing?!?!
+Monel Funkawitz Well then, just don't lick your new JetCat. Hahahah.
Well, the turbine running at max throttle would kinda make it not a biohazard.
What am I doing?
Check out the LM X-56 that is operated by NASA. It uses two JetCat P-400's.
Probably cut his self on the turbine. Some machinist didn't deburr his work!!
get back in your bubble
The Fifties called and said they want their narrator back. Interesting, nevertheless. I just read the word drehmuster. Now I know where it was made ;)
Because it's not just a matter of buying metal and cutting it! What you're paying for is 1% metal, 20% machining time, and the rest is technical knowledge and human problem-solving effort. These are NOT like model glow plug piston engines--there is a *lot* to them, they are very design and development-intensive pieces of machinery! It took a lot of really smart people a huge amount of effort to make these things work, just so people can burn money and kerosene flying their models :)
son i want a turbo engine -👨💼dad DOES It Burn 😳 NO SON run along
Best show ever
...as the assembler is fuckin bleeding all over the place
These would produce no thrust without combustion. What powers the compressor and turns produces thrust is the difference in velocity that the air goes through because of the combustion.
Not always 100% correct but interesting and informative none the less.
What wasn’t correct?
When you rotate these engines to well over 100,000 RPM, several considerations go up exponentially; the weight of the turbine blades, the significance of balance on the turbine wheels, and the legal liability for JetCat if one of these little missiles come off the wheel and enter your head! Liability, engineering, metallurgy for components,
CLC machines, and other factors run the cost up-only if you plan to make a profit from the business....or you could buy parts at Ace and make one yourself.
I really loved it.. It's so amazing this engine... Where can I buy two of them?
might want a third as an APU. lol
If you pause it at 4:58 you see the inside. Why is the combustion chamber open to the hollow cone at the back of the engine? Or am I seeing it wrong?
My left ear enjoyed it
1) This appears to be made in the USA, which is very weird.
2) Has someone used these engines in an Ironman flying exoskeleton suit? I know that an arc reactor would be preferable to a mini gas turbine, but no one has invented an arc reactor yet.
for the very affordable price of $2500 it can be yours! they have one listed for $12k holy cow.
Did any one else notice the horrendous porosity in the cast compressor wheel as he was balance grinding it?
I could be wrong but the little black marks looked like pitting or some kind of inclusions in that alloy where he was die grinding it.
blood sweat and tears... really.
$5000 dollars for a piece of metal ??? Hell no -:-| I was so pissed when I found that out .... I want one bad ...
But after that, the sky is the limit !! GOD That was a god one 0_0
really really cool!
they should do one on how cut aways are made lol.
Everyone has a Plumbus at home
Which type of moter are use in this jet ~ what's Name of this moter
WOW, Thanks your video. It's great~!
Great!
excellent
Thank you much! Does it be used for the testing of original motor properties or just a model ? The chamber at 4:37 , which results could we get ?
that chamber is used for testing the turbines performance before leaving the factory.
1:25 SO MUCH BLOOD
Kapov you must be a special snowflake
IS THAT AN OFF THE SHELF TURBOCHARGER COMPRESSOR WHEEL RE PURPOSED FOR THIS APPLICATION @ 2:50 ?
shaking hands
blood all over hand
I love "How It's Made" too :3
If you look at 1:35 he now has a bandage on all in 4 seconds:)
So the electric motor is just to start the compression of the air until enough power is generated to do so but the turbine itself?
jet engines can thrust out of both ends. The electric motor is to start the air flowing in the desired direction.
Best engineering
Only one stage compression ?
How much thrust can it produce ?
So why is it so damm expensive ?
people are awsome
I love it !!!!
You should check out the channel AgentJayZ, that guy is a Gas turbine engine technician, and he knows a lot more than me on the matter. He has a lot of videos explaining how jet engines work.
The sky is the limit...
fine
Hurt the hand 😲 1:29
Well, it depends on the thrust output. Model turbines usually range from 5 to 50 pounds of thrust. Larger models are capable of pushing a bike forward like nothing.
3:06 I am not sure, if this is the right place to grind material away...
No wonder why it's so expensive, It's made out of the blood and sweat of this individual
Yeah and he gets the grand title of "a worker".
@@gersonboav1 Yeah CNC machines have no idea that they're making something =/
@@henryforster8101 what about the assembly process?
@@gersonboav1 The CNC machines make everything sharp. Sharp corners, sharp edges, blades, etc. It's a machine unawre of it's purpose, what the heck it's doing, and what it is. And the people assembling these sharp precision parts could get cut.
I was thinking the opposite, how cheaply these could actually be produced... These things sell for $2500 to $12,000. What cost is there in 6 hours, $400 maybe in parts, materials and labor?
These guys are passionate about their jet engines, it's in their blood...... everywhere apparently.
The Dollar Guy ILL BUY THAT FOR A DOLLAR 😜
HAHA
@HENRY FORSTER i believe he was referring to the band-aid that employee was sporting....
I think that technician needs a drink, hes shaking like a leaf on a tree
He might bleed to death if you add alcohol.
It looks like some off-the-shelf turbo parts incorporated into it too. Someone did a lot of thinking. Very cool.
If you aint bleeding, you aint working!
lol the guy at 1:30 is so you bet he's working his a$$ off
1:30 blood everywhere
you think he would have stopped and sorted it out
i mean its not like its for tv
TheDct88
N
OMG, its a little scratch! Try not ro hurl qweezy little girl.
TheDct88
.
lol
You'll barely notice cuts from sharp burrs along edges
No charge for the crusty blood in your $2500 engine. Jeez... come on Jet Cat
that's exactly what i was thinking
VietTrinh Hoang p
hmmm must have been a wren part.
on some engines the technician putting it together will sign a plaque. These guys just use the technician's blood spot as signature. You can't fake DNA as proof of who built that engine.
I wonder what Sir Frank Whittle would think if he was still alive to watch this documentary? Without any funding he spent years developing the jet engine virtually on his own in a shed in 1930's England; his first huge engine only produced around a 1000 lbs of thrust and now this little toys (no disrespect) models produce around 30 something lbs, the mind boggles! Good old Sir Frank RIP.
They are not toys they cost at least 2,000 usd
zachand dragon dude. it is a toy.
that 2000 usd price is NOTHING compared to a big turbofan- jet engine.
Compared to the cost of a full size jet engine with price tags of several million Euro's, the price tags of these model jet engines costing only a few thousand Euro are peanuts in comparisson.
Seeing this I actually have a lot of respect for the Germans. As bad as they might have been during WOII, it is simply mind boggling what kind of achievements they made from 1940-1945, jet bombers, fighters, and even a jet driven stealth fighter that looks amazingly similar to the modern stealth attack drones like the nEURON and X-47. And they did all of that while none of the Allies even managed to produce a single jet powered plane. Or how the Germans invented and produced cruise missiles (V1), ballistic missiles (V2), guided bombs (Fritz X), and SAMs (Wasserfall). Simply amazing!
anyone notice the guys hand is bleeding @1:29
Yeah I noticed it and that in the next scene he had a bandaid on it. HA HA!
hackfreehvac lol i just saw that
No
Yes, we all did!
Kyle Pham - not bleeding, just a little band aid.
watching this makes me wonder how the hell anyone ever made the FIRST one.
My design in 2011 all
This chanal have show on you tube afther me 1 weak
I can swear it hybl jest 16 . All f16
You can see way they call model rc because it the first made in 2011
and the h logo is same my Pattern too
I cannot stand to wear any jewelry while working on any piece of equipment.
where is OSHA when you need them?
Where do you think they get those compressor blades from? Old cars? Looks like they only mill about 3 precision parts themselves (aside from the electronics and other minor components)... And this engine is $3,000! LOL!
They cost an assload because demand from them is low, which is a shame.
that's not even axial flow, you are looking at technology from 30's
Chameleon, the problem is that axial flow engines are nearly impossible to scale down to this size. Its been done once, I think, successfully. And the cost would beyond what your average joe could afford because of the technology that goes into making it. This level of tech is enough for the people using it and keep them in a price range that most people can figure out a way to afford it
So many "experts". Build a better engine for less money and sell it yourself. It's the beauty of Capitalism; it gives us all better products at lower costs. Now you have a goal and a business plan.
Of course you will find out it is not as easy as a few blades from old cars, 3 precision parts and other minor components etc. The world is over-crowded with fools.
Rick Halverson you can buy a new motorcycle for just 1000$ more. If you think that is cheap or that capitalism always makes things cheaper and better than you sure haven’t heard about a monopoly.
folks are extremely squeamish about just a little bit of blood cmon man
What do you do? "I make tiny jet engines with precision" - what a fucking boss..
Jerry Jackman started making them in 1975. Worlds first turbine powered model flight March
20th 1983, Greenham common airfield UK..
+SuperAncientmariner correct! I saw so many things that were wrong in this video I don't know where to start
Ok, great work. But they need "only" 6 hours to build one and then they sell it for 3000-6000 bucks. I think they cost too much. Material and work together should be max. 1000 bucks. It would be great, if the prices for RC turbines decreases in future. If they would do huge numbers of these and would automate the production process, they could cost about 500 instead 5000 and affordable for more people.
well the demand is not that high so they can ask more for it. And then you need to add the man hour it takes to build on and the engineering that went in to it. you can't really make an automated process of the because some of the parts are to small and assembly is to small and complicated for the most parts
great work !
I hope some day I could make something like that
Best video yet on making RC jet turbines. Gotta download this. Thank you so very much!!
They didn't say this was a Centrifugal jet engine, not an Axial flow engine. As you see the Centrifugal engine is actually quite simple in comparison to an Axial flow. In part it makes the engine easier to maintain and more reliable in that there are fewer parts. Honestly these engines do kick ass and I believe these were the engines used on that Swiss guys wing pack, the one where he jumps from a plane and flies with it before having to use a parachute to land. Sorry I cannot remember the name of the man who flew the Wing Pack but it uses 4 of these engines. All I can say is I am impressed at how simple and clean these engines are mechanically. In remote control it is hard to find better. You also are looking at the high end of Remote Control. This is the power plant of choice for the REALLY big R/C airplanes.
The workplace probably should consider offering cut resistant gloves to the assembly technicians...
Preach. CNC machined parts are evil sharp.
This shit does not cost 100 dollars, then they sell it for 2000 dollars
Who sells these nice little engines?
One of them in a working environment would be spectacular exhibit like Gluhareff's 1960s vintage pressure jet engine in the California Museum Of Science & Industry.
JetCat...here is a link to a vendor. My router is barking that JetCat's US site has malware... www.dreamworksrc.com/catalog/Turbine-Engines/Jetcat-74/Jetcat-Engines
Is anyone making a scale size jet engine by now that has a multistage, axial compressor, and a multistage turbine?
poor worker get him a treatment he deserves better
also his hands are shaky he should get more treatments to fix dat too :P
It was these things that inspired me to start building a turbocharger based jet at home. I had no intent in making it "fly". I want it to just run. And it does.
Just too frakkin' cool.
I remember seeing my first ducted fan turbine R/C aircraft back in 1983. An F-4 Phantom. It was the cat's ass.
you think they could of paused production for him to clean his hand up with all the blood!
I just cant understand, that plastic tube or other wire parts are not melting when the turbine works? Its release a lot of heat when it operating, how they could be possible working on that temperature without burning?
Aerospace engineering A+
Basic first aid C-
I always thought jet engines just lit the fuel after being compressed with air. Lot to learn I suppose. Anyone know how they really work?
I guess these engines are made at the moment they are ordered because of the hefty price tag (because of the intricate engineering) and the low demand (not that many customers for this beautiful piece of technology).
I find it disturbing. Never know putting things inplace could made yourself bleed. Man.. jet engines is so not for beginners..
Turbine parts are not cast in molds, they are just machined from raw titanium and aluminum. Molding would be a waste of time since it would still then have to be machined to make sure it is exact. The tolerances of all the parts is too extreme for molding to be cost effective, It would just end up slowing the builds and costing more.
*Please tell me from which episode and season this clip is*
i just dont get why that jet engine has to be so fricking expinsive. it looks like it would atleast be 500 bucks. with only that many parts and equipment. and the time it takes to build... jeez
Ни одного комментария про Игоря Негоду.
These engines are really over priced imo. These thingsncould easily be made for a few hundred bucks a piece, but people continue to blow wads of money on them so they just keep on charging a fortune with not much motivation to lower the prices. The truly 'elite' snobs of the rc hobby. They usually never help anyone at the field or hang in out genuinely with regular fliers, seen it time and time again.
is it me or is there a broken fin on the rear blade at the end of the video.so much for quality control jet cat.these engines are way over priced i looked into one of these in the late early 90s it was 1/2 the size of this one and they wanted $3,500 then the unit shown must be 5-6000 at least
This compressor is from a turbocompressor looks like
LE TURBINE e ad reazione come motori propulzori aereonautici sono insostituibili e poco modificabili sono gia al top,x sostituirli ci vorrebbero degli accelleratori moecolari o graviazionali MA avete da aspettare moltooo....
I am sure you can still buy handbook with all info you need on INPLIX. Just google it.
hi bro i would like to know the name of part you made from CNC and its design can be done with solidworks ??? please help me
Now to make a B-52 you just have to do it 7 more times.
Gives credence to Blood, Sweat and Tears. :)
Mr. Engineer, I am very interested in jet engine engineering. I want to learn from you. You will help me.
OH GOD MY EARS, WHAT IS THIS AMERICAN VOICE I AM HEARING?