We weld repair them using stainless steel. The better the design of a combustor liner, the cooler it runs. In modern engines, they are ceramic coated. I'm not sure what the underlying metal structure is made of. Possibly Inconel, but it may very well be stainless steel.
AgentJayZ - I've got to say, your videos are a geek's paradise. I greatly enjoy your tours through turbine engine parts, start-ups, running, afterburning snow-clearing, etc. Thanks for taking the time to post super-interesting and informative videos.
@egn83b I don't know what makes a sterling engine work, but I think it works on the Sterling cycle... ? A piston engine works on the Otto cycle, and a gas turbine works on the Brayton cycle. These things, descriptions of, of me, ask you not... of you , in advance, thank, do I.
I just discovered your channel and am finding this stuff fascinating. I'm a teacher. You're a great teacher! I'm amazed that people can figure these designs out and have such confidence in them! I'm also amazed with how "simple" the basic design is. Your description of the burners reminds me a little of the burners on a gas stove with an ignitor in just one spot. Thanks!
It is amazing that much of this technology was advanced long before computers were able to calculate CFD. Trial and error wasn’t an efficient way to create these assemblies, but the results of manual engineering was astonishing, producing great engines long before computers helped fine-tune these to be more powerful and efficient.
Hi, it is my believe all of us, fans or workers in the aviation, power plants entusiasts, need to thank you for your great work. You are transfering to all of us, what you love to do. Today we learned more of a very special part of these engines, the combustion liners. I remember wrote about the annular liners, and they are quite expensive units. These liners are used in the commercial airplanes and more fuel efficient than cans. Thank you again and keep doing this great work.
I want to say thank you as well. I started learning about Jet engines not long ago. I spent a few hours watching one animation of a Turbo Jet engine until I finally wrapped my head around the way it worked and ever since I have been almost obsessed. It was very nice to see actual internals instead of just animations, they had actually had me puzzled for a long time about how such a thing would be mass produced. My biggest puzzling thought I seen you tried to explain was how to design the best possible designs for parts like the combustion chamber. I found the Pratt And Whitney the most interesting, I liked the way that it would make the fuel air mixture create a swirling motion before it moved onto the next cycle like normal piston combustion engines try to do with their intakes.
Thank you for the clarification. There aren't very many ways a non-expert like myself can get a look into the inner workings of these engines. It's very nice of you to share your experience.
Great look at all the various components of different engines. This sort of stuff is few and far between on youtube, so thank you very much for taking the time to record and explain the various functions of each part in easy to understand terms. Great to get an insight into the innards of these engines.
A very interesting report on the development of various combustion chambers. - Can - Combustors, tube - annular combustors and finally annular combustion chamber as in history. I have never in my life seen before these parts so close and well explained. Thank you :)
Thank you for the video. I've been fascinated by gas turbines for years and have just begun the deep dive into understanding their theories of operation. The video has been very helpful for a beginner like me!
I tell you right in the video, at the same time you see it, that it's from a JFS100. It's a small gas turbine starter used by several US military engines.
Thanks. Good study material for pilots and I always love seeing animals in the shops. They are cute, funny and provide much needed comic relief. Studying does get stressful every once in a while!
I work in a technical field and have to know how energy moves around. I take pride in my knowledge and ability. You, sir, blew my doors off with this video. I can surmise what's going on with the engine and fuel air mixture based on your explanation alone. The pure Tonka Toy geekiness of this warms the cockles of my heart, though. Thanks for posting.
Built combustors baskets for gas turbines at Westinghouse in the 80's! The Westinghouse 501 was an awesome engine to work on! We basically used Hasteloy, and had to punch out the holes and spotweld the rings together! Metal was too hard to drill!!
This is another well explanation of combustor liners. Once I talked to you about annular combustor liners, but you don't work those, they are for commecial aviation. Thanks for this video and all the other ones. You are a good teacher!
We work on large industrial engines, occasionally military flight engines, and very rarely special projects like land speed cars, race boats and UFOs. Never mind that last one. The PT6 is a civil aviation engine, and we are prevented by law from working on anything in civil aviation. There IS an industrial version, called the ST6, but it is rare, and we have never seen one. Maybe someday...
@mytmousemalibu Yes, the turbine inlet nozzles direct hot combustion gases at the turbine. Whatever it is that makes those gases it not something the nozzles worry about.
@TheMan1510 A cmbination of stainless steel for toughness and resistance to cracking, and refractory alloys like Inconel or Hastelloy for maintaining strength at very high temperatures. They live in an environment of 1000mph wind at a temp of roughly 1000F, so they are built to be as far from fragile as possible.
@MoowChair The pressure difference between the outside of the combustor liner and the inside is very small; just enough for the air to flow inwards through all those holes. The main stress on the liner is heat radiated from the flame of the burning fuel.
absolutely awesome, thank you for patiently showing us, explaining in just enough detail to understand it but not so much detail that it's boring, monotonous and we wish I'll upon you and shop kitty.
It is there to swirl the small amount of air that comes through the snout and is used for initial combustion of the fuel. It is swirled to both decrease its axial velocity and to promote better mixing with the spray of fuel coming out of the fuel nozzle. This is a general description. Keep in mind that combustor liners are designed by a mixture of trial and error, black magic, and a tiny pinch of aerodynamic theory.
The T56/501 uses a set of can-type liners inside a common outer case. This is known as the can-annular, or cannular arrangement. The can-type arrangement is what you see on our Orenda type 14 or J47 engines. These inaccuracies, presented in an instructional manner, are forcing me to remove your comments, as they are misleading to people who may not already know and are trying to learn.
Great overlook of the different designs. The inner combustor liner of JFS-100 looks preatty simmilar to the ones we use in our small gas turbines (ring of fire :-)). I`d love to have one of those old J-79 combustor liners - they look so cool. Really interseting video - thx for showing.
Hey just wanted to let you know your vids are awesome im a marine just started in my unit as a mech on hueys there a bit different than these turbine engines but im tryin to learn anyway i can and your vids r really helpful so thanks and i hope u will keep doing them
Amazing site, I work for Rolls-Royce and used to make the anular comdustors for the Panavia Tornado, the RB199 turbojet, I was the main Quality inspector. In now make the large fan blades for all the Trent series engines, very big fan blades
I have a Rolls Royce Derwent combustor liner. I was looking up info on it and found a really good PDF of an old Rolls Royce book called "Rolls Royce the Jet Engine Fifth Edition" that has some pretty interesting info on the configurations of the different holes on their liners. For curious folks, like myself, it's worth checking out for sure.
I'm just a guy who works with the stuff, and is interested in the history of how it all came to be the way it is... Lucky enough to get to tear apart and put together his boyhood dream... Jet engines and Rocket ships ! Ok... got a bit carried away there...
Thanks for taking the time to show this stuff, it's fun to see. What did you study, and for how long? What is your role at that shop? What kind of metal are those made of and why? Some of those designs are very aesthetic, especially the one with 6 mixers. Others have some resemblance to the Dyson blade-less fan. Thanks!
I don't call them injectors, because they contain no valve or other method of controlling fuel flow. They are not called combustion chambers, because the space where fuel is burned is made up of two separate parts: the outer case and the liner. There are different types of liners, so the question of how many ignitors per liner has several answers: either one, two, or none...
like the video. reminds me of when I was in high school we had an aircraft maintenance shop class. makes me wish I stayed the course and went to a tech school.
Yeah, that impressed me too. The most expensive stuff is that which runs hottest. and is subject to the highest force, ie, centripetal. So that means the turbine blades, and the mounting ring they sit on, followed by the stationary stator blades. They (engines) do actually last well, and I wouldn't call the maintenance minor or simple, but turbine engines have become a bit of a miracle of reliability, in view of the temperatures and forces, they don't fail very much. Exceptional engineering.
They are not fuel injectors, because they have no valve or any way of controlling the amount of fuel flow. They are called nozzles because that's what they are. Interestingly, fuel flow is controlled by a device called the fuel control. I do have a few videos posted featuring fuel nozzles in action being tested.
hello agent zay. i want you to deeply explain the combustion part---you have explained about the combustion liner but the outer part or the outer case isnt explained. awsum video
@matube73 It's all the same airflow coming from compressor. As you can see in video, only small part of it "is burned", larger part is squeesed through combuster liners later, which cools the exhaust gases, but all air comes from compressor. If I'm wrong, blame JayZ :D
Nice video, thanks for posting. I'm curious...what part of the engine is it that receives the reaction force from the escaping exhaust gas, pushing the engine (and ultimately the aircraft) forward? Is it the flat area around the fuel nozzles at 8:24 ?
Yup, it's that flat lining that houses the fuel nozzles (since it's perpendicular to the direction of the flow of the gases), and the compressor blades to some extent, and also the main fan blades in case of high bypass/turbofans, Though I realise your question was specific to reaction force from the EXHAUST GASES, so really just that liner section. Who'd have thought that unassuming little section of metal is responsible for bearing such a great load and is so instrumental in the 3rd law execution of the engine's propulsion? :) Good observation and question btw!
@milesall1 Out in the open like that, the holes in the liner would allow air to flow out, when in an engine air flows from the outside of the liner inwards. Your demo would be ultra cool if we could somehow make a combustor case out of glass so we could see inside a real running engine... Hmmmm....
Thank you very much !!!! I never seen a real combustor in my life and probably never will... And had no idea what they look like, now, i know. 1/2 million $ for the annular combustor.... Me too, i'd let it lie on the ground...
Cool videos !!!I am very impressed with them all.My job is closely related. I work at a laser shop, and we laser a lot of parts for the aerospace industry. I happened to notice one sitting on top shelf behind you at the beginning of this video and was wondering if you could show us where in the engine it goes.We call it an M08 and burn all the holes and tabs at the top of the part. Thank you keep up the awesome videos!!
Another great vid Jay. Excellent close ups. Question please:- What feeds all of them mixing holes to cool the burnt gases in the combusters? Is it from airflow around then engine? How does this work in a fighter jet set up? Cheers.
I really enjoyed this evolution-peice! Would it be possible to make more of them? like from J47 (or earlier) to the present on various parts? I get that this was a rare opportunity, perhaps acquiring the footage of various parts over time could be a solution to that?
Hi AgentJayZ many thanks for the informative videos. I have known liners are being used in annular type combustion chambers to protect main material from high temperature. However I see no liners in this can type combustors. How are they protected from high temperature? Are they replaced frequently?
Nice video! Do you know if the annular 500000 buck combustion liner is so expensive due to an advanced production process, or for all the testing and development?
it seems in your video's watching and listening gives me the answers I seek thankyou the burner cans from the Orenda turbo-jet are larger than the J47 are these more powerful or are they bigger for greater cooling air around the inner cans this engine has really grown on me, I will try to find a small model to go with my RR Nene model but do want the Orenda and not a J47, thanks again AgentJayZ
Thank you for sharing the information with us. The flame can reach up to 1700 Celsius, i guess u already know about that. but I didn't know that the guide vanes can reached around 1100 degrees. I know it's HOT but I don't have the figure. Thanks
@@AgentJayZ lol no thanks, xD I'll buy a pair of engines if you can do $800 a month, for 25,000 months. They would be payed off by the year 4100 or so. I'll gladly pay Tuesday for a turbine engine today.
What does the flame look like, how far does it propagate from the low pressure area in the liner? Are any of these used combustors able to be placed placed back into service? What are the liners made of? stainless?
Any footage of reverse flow annular liners? I work on PT6As and I rarely get to see internals upstream of the power section. ....well, without using a boroscope that is.
Hey ur videos are just amazing , I have been watching ur videos . Just wanted to know how many Ignitors and Injectors are present in an combustion chamber.....
We weld repair them using stainless steel. The better the design of a combustor liner, the cooler it runs.
In modern engines, they are ceramic coated. I'm not sure what the underlying metal structure is made of. Possibly Inconel, but it may very well be stainless steel.
I am a GSM student and Have been watching all your video. Thank you very much for all.
You teach better than all teachers I ever had.
AgentJayZ - I've got to say, your videos are a geek's paradise. I greatly enjoy your tours through turbine engine parts, start-ups, running, afterburning snow-clearing, etc. Thanks for taking the time to post super-interesting and informative videos.
@egn83b I don't know what makes a sterling engine work, but I think it works on the Sterling cycle... ?
A piston engine works on the Otto cycle, and a gas turbine works on the Brayton cycle.
These things, descriptions of, of me, ask you not... of you , in advance, thank, do I.
love these videos. this is stuff every engineer studies in school, but few get to actually see.
I just discovered your channel and am finding this stuff fascinating. I'm a teacher. You're a great teacher! I'm amazed that people can figure these designs out and have such confidence in them! I'm also amazed with how "simple" the basic design is. Your description of the burners reminds me a little of the burners on a gas stove with an ignitor in just one spot. Thanks!
It is amazing that much of this technology was advanced long before computers were able to calculate CFD. Trial and error wasn’t an efficient way to create these assemblies, but the results of manual engineering was astonishing, producing great engines long before computers helped fine-tune these to be more powerful and efficient.
Hi, it is my believe all of us, fans or workers in the aviation, power plants entusiasts, need to thank you for your great work. You are transfering to all of us, what you love to do. Today we learned more of a very special part of these engines, the combustion liners. I remember wrote about the annular liners, and they are quite expensive units. These liners are used in the commercial airplanes and more fuel efficient than cans. Thank you again and keep doing this great work.
I want to say thank you as well. I started learning about Jet engines not long ago. I spent a few hours watching one animation of a Turbo Jet engine until I finally wrapped my head around the way it worked and ever since I have been almost obsessed. It was very nice to see actual internals instead of just animations, they had actually had me puzzled for a long time about how such a thing would be mass produced. My biggest puzzling thought I seen you tried to explain was how to design the best possible designs for parts like the combustion chamber. I found the Pratt And Whitney the most interesting, I liked the way that it would make the fuel air mixture create a swirling motion before it moved onto the next cycle like normal piston combustion engines try to do with their intakes.
Thank you for the clarification. There aren't very many ways a non-expert like myself can get a look into the inner workings of these engines. It's very nice of you to share your experience.
Great look at all the various components of different engines. This sort of stuff is few and far between on youtube, so thank you very much for taking the time to record and explain the various functions of each part in easy to understand terms. Great to get an insight into the innards of these engines.
A very interesting report on the development of various combustion chambers. - Can - Combustors, tube - annular combustors and finally annular combustion chamber as in history. I have never in my life seen before these parts so close and well explained. Thank you :)
Thank you for the video. I've been fascinated by gas turbines for years and have just begun the deep dive into understanding their theories of operation. The video has been very helpful for a beginner like me!
Your enthusiasm for your field is inspiring
Thanks for taking the time to make these videos, I have been watching a lot of them tonight and am learning alot! Thanks!
I tell you right in the video, at the same time you see it, that it's from a JFS100. It's a small gas turbine starter used by several US military engines.
Thanks. Good study material for pilots and I always love seeing animals in the shops. They are cute, funny and provide much needed comic relief. Studying does get stressful every once in a while!
Every video (episode) more and more amazing. Do not stop making it. Thank you
I work in a technical field and have to know how energy moves around. I take pride in my knowledge and ability. You, sir, blew my doors off with this video. I can surmise what's going on with the engine and fuel air mixture based on your explanation alone. The pure Tonka Toy geekiness of this warms the cockles of my heart, though. Thanks for posting.
Built combustors baskets for gas turbines at Westinghouse in the 80's! The Westinghouse 501 was an awesome engine to work on! We basically used Hasteloy, and had to punch out the holes and spotweld the rings together! Metal was too hard to drill!!
This is another well explanation of combustor liners. Once I talked to you about annular combustor liners, but you don't work those, they are for commecial aviation. Thanks for this video and all the other ones. You are a good teacher!
sooo cool, thank you for explaining it to those of us who love them but aren't sure how the detail of it works, we kind of do now, Awesome
Fascinating! I always wondered what the annular combustors looked. Great to compare several different designs side-by-side.
We work on large industrial engines, occasionally military flight engines, and very rarely special projects like land speed cars, race boats and UFOs.
Never mind that last one.
The PT6 is a civil aviation engine, and we are prevented by law from working on anything in civil aviation.
There IS an industrial version, called the ST6, but it is rare, and we have never seen one. Maybe someday...
@mytmousemalibu Yes, the turbine inlet nozzles direct hot combustion gases at the turbine. Whatever it is that makes those gases it not something the nozzles worry about.
@TheMan1510 A cmbination of stainless steel for toughness and resistance to cracking, and refractory alloys like Inconel or Hastelloy for maintaining strength at very high temperatures.
They live in an environment of 1000mph wind at a temp of roughly 1000F, so they are built to be as far from fragile as possible.
As usual you are the best of the best in my book ,and the way you describe em is the beauty of these videos .
@circe362 I think so, but I didn't look any closer than in the video. And it's in the engine now...
@MoowChair The pressure difference between the outside of the combustor liner and the inside is very small; just enough for the air to flow inwards through all those holes.
The main stress on the liner is heat radiated from the flame of the burning fuel.
absolutely awesome, thank you for patiently showing us, explaining in just enough detail to understand it but not so much detail that it's boring, monotonous and we wish I'll upon you and shop kitty.
It is there to swirl the small amount of air that comes through the snout and is used for initial combustion of the fuel. It is swirled to both decrease its axial velocity and to promote better mixing with the spray of fuel coming out of the fuel nozzle.
This is a general description. Keep in mind that combustor liners are designed by a mixture of trial and error, black magic, and a tiny pinch of aerodynamic theory.
The T56/501 uses a set of can-type liners inside a common outer case. This is known as the can-annular, or cannular arrangement.
The can-type arrangement is what you see on our Orenda type 14 or J47 engines.
These inaccuracies, presented in an instructional manner, are forcing me to remove your comments, as they are misleading to people who may not already know and are trying to learn.
Great overlook of the different designs. The inner combustor liner of JFS-100 looks preatty simmilar to the ones we use in our small gas turbines (ring of fire :-)). I`d love to have one of those old J-79 combustor liners - they look so cool.
Really interseting video - thx for showing.
Spoiler alert: the cat is the chief engineer.
Wow, thanks for the tour, I really enjoyed it!
Hi DrZ, I really love your videos and your excellent commentary. A special thanks to Shop Kitty.
Hey just wanted to let you know your vids are awesome im a marine just started in my unit as a mech on hueys there a bit different than these turbine engines but im tryin to learn anyway i can and your vids r really helpful so thanks and i hope u will keep doing them
OMG!!! It’s the head of the IG88 Bounty Hunter from “The Empire Strikes Back” !!! LOL
@465maltbie Inconel and other refractory alloys like hast-X... are extremely difficult to weld.
This was a GREAT lessons,thank you very much Jay!
You are providing very valuable information sir
Amazing site, I work for Rolls-Royce and used to make the anular comdustors for the Panavia Tornado, the RB199 turbojet, I was the main Quality inspector. In now make the large fan blades for all the Trent series engines, very big fan blades
cool. I like the final scene when you shoot through the liner.
Woah, that CF-6 combustor is pretty sweet. The J-75 can-annular one is also quite interesting. Thanks for the videos!
I have a Rolls Royce Derwent combustor liner. I was looking up info on it and found a really good PDF of an old Rolls Royce book called "Rolls Royce the Jet Engine Fifth Edition" that has some pretty interesting info on the configurations of the different holes on their liners. For curious folks, like myself, it's worth checking out for sure.
Yes, that book is one that I am always recommending.
Well done, thanks a lot for sharing!
Friday in the classroom teaching turbine engine theory at Red River College. Shop kitty was a big hit. Thanks for your vids!
I applied for a job there... No response.
@@AgentJayZ You're too cool for this place.
Thank you for your response. I look forward to watching your next fuel nozzle videos.
I'm just a guy who works with the stuff, and is interested in the history of how it all came to be the way it is...
Lucky enough to get to tear apart and put together his boyhood dream... Jet engines and Rocket ships !
Ok... got a bit carried away there...
You make me wish my day had 200 hours Jay !
I could watch your vids till hell freezes over !
Thanks for taking the time to show this stuff, it's fun to see.
What did you study, and for how long?
What is your role at that shop?
What kind of metal are those made of and why?
Some of those designs are very aesthetic, especially the one with 6 mixers. Others have some resemblance to the Dyson blade-less fan.
Thanks!
@Bobkse You only need one, and the other is just a backup.
Great video! A great addition to books.
This is so much better than reading my textbooks.
Thanks for showing this is very interesting
I don't call them injectors, because they contain no valve or other method of controlling fuel flow.
They are not called combustion chambers, because the space where fuel is burned is made up of two separate parts: the outer case and the liner.
There are different types of liners, so the question of how many ignitors per liner has several answers: either one, two, or none...
Very informative...keep up the great work,i look forward to your videos very much.Thanks very much
Merry Christmas...Bob
What Paul said.
Very interesting, and answers a bunch of curiosity. Thanks mate
Top video. Always beautifully explained.
like the video. reminds me of when I was in high school we had an aircraft maintenance shop class. makes me wish I stayed the course and went to a tech school.
Amazing video and knowledge, Thank you.
This was great, thank you for doing it.
I believe the P&W liner middle nozzle you werent sure about is the secondary combustion nozzle, similar with GE frame 9E DLN-1 combuster.
Yeah, that impressed me too. The most expensive stuff is that which runs hottest. and is subject to the highest force, ie, centripetal. So that means the turbine blades, and the mounting ring they sit on, followed by the stationary stator blades. They (engines) do actually last well, and I wouldn't call the maintenance minor or simple, but turbine engines have become a bit of a miracle of reliability, in view of the temperatures and forces, they don't fail very much. Exceptional engineering.
They are not fuel injectors, because they have no valve or any way of controlling the amount of fuel flow. They are called nozzles because that's what they are.
Interestingly, fuel flow is controlled by a device called the fuel control.
I do have a few videos posted featuring fuel nozzles in action being tested.
Thanks for watching?? Thanks for showing!!...
hello agent zay. i want you to deeply explain the combustion part---you have explained about the combustion liner but the outer part or the outer case isnt explained. awsum video
@matube73 It's all the same airflow coming from compressor. As you can see in video, only small part of it "is burned", larger part is squeesed through combuster liners later, which cools the exhaust gases, but all air comes from compressor. If I'm wrong, blame JayZ :D
thanks my brother for all videos .
Have you thought about giving lectures to aerospace students or already done so? These videos plus some Q&A would go a long way
Nice video, thanks for posting. I'm curious...what part of the engine is it that receives the reaction force from the escaping exhaust gas, pushing the engine (and ultimately the aircraft) forward? Is it the flat area around the fuel nozzles at 8:24 ?
Yup, it's that flat lining that houses the fuel nozzles (since it's perpendicular to the direction of the flow of the gases), and the compressor blades to some extent, and also the main fan blades in case of high bypass/turbofans,
Though I realise your question was specific to reaction force from the EXHAUST GASES, so really just that liner section.
Who'd have thought that unassuming little section of metal is responsible for bearing such a great load and is so instrumental in the 3rd law execution of the engine's propulsion? :)
Good observation and question btw!
@milesall1 Out in the open like that, the holes in the liner would allow air to flow out, when in an engine air flows from the outside of the liner inwards. Your demo would be ultra cool if we could somehow make a combustor case out of glass so we could see inside a real running engine...
Hmmmm....
Thank you very much !!!!
I never seen a real combustor in my life and probably never will... And had no idea what they look like, now, i know.
1/2 million $ for the annular combustor.... Me too, i'd let it lie on the ground...
Cool videos !!!I am very impressed with them all.My job is closely related. I work at a laser shop, and we laser a lot of parts for the aerospace industry. I happened to notice one sitting on top shelf behind you at the beginning of this video and was wondering if you could show us where in the engine it goes.We call it an M08 and burn all the holes and tabs at the top of the part. Thank you keep up the awesome videos!!
I agree with shop kitty, the JFS100 is the best.
Great video!, do you have any videos illustrating fuel injectors: pressure-swirl, vaporizers, and airblast ? Many thanks!
thank you very much. that really help me with part66 B15
The J75 is my favorite... Very cool design!
Another great vid Jay. Excellent close ups. Question please:- What feeds all of them mixing holes to cool the burnt gases in the combusters? Is it from airflow around then engine? How does this work in a fighter jet set up? Cheers.
I enjoy your videos very interesting
Great vid! Can we get some thoughts and a tour on that Yamaha SR sled in the background? Drool.
I really enjoyed this evolution-peice!
Would it be possible to make more of them? like from J47 (or earlier) to the present on various parts?
I get that this was a rare opportunity, perhaps acquiring the footage of various parts over time could be a solution to that?
That was neat jay! Question, do the full annular designs still have a turbine inlet guide vane yes?
Hi AgentJayZ many thanks for the informative videos. I have known liners are being used in annular type combustion chambers to protect main material from high temperature. However I see no liners in this can type combustors. How are they protected from high temperature? Are they replaced frequently?
You need to watch the whole series.
Nice video! Do you know if the annular 500000 buck combustion liner is so expensive due to an advanced production process, or for all the testing and development?
I am so much interested in your imformative videos thanks a lot SIR......
it seems in your video's watching and listening gives me the answers I seek thankyou
the burner cans from the Orenda turbo-jet are larger than the J47 are these more powerful
or are they bigger for greater cooling air around the inner cans
this engine has really grown on me, I will try to find a small model to go with my RR Nene model but do want the Orenda and not a J47, thanks again AgentJayZ
Thank you for the video. Greetings from Spain
Thank you for sharing the information with us. The flame can reach up to 1700 Celsius, i guess u already know about that. but I didn't know that the guide vanes can reached around 1100 degrees. I know it's HOT but I don't have the figure. Thanks
Shop Cat is awesome! Also 500k for a liner is crazy! I wonder how much the whole engine costs assembled?
More than ten million new. You'll need two for your airplane, sir. Are you interested in the extended warranty plan?
@@AgentJayZ lol no thanks, xD I'll buy a pair of engines if you can do $800 a month, for 25,000 months. They would be payed off by the year 4100 or so. I'll gladly pay Tuesday for a turbine engine today.
Hi , thanks for uploading such an amazing video, you are a star
Sweet! Thanks Agent Jay!
What does the flame look like, how far does it propagate from the low pressure area in the liner? Are any of these used combustors able to be placed placed back into service? What are the liners made of? stainless?
Give kitty a treat for all of us please. Great show model cat! Great job really!
On a non flying industrial jet power unit, is it possible to use water injection to lower gas temperatures and increase power?
Yes, it is a common practice, mainly to reduce NOx emissions.
thank you very much for the explanation. Appreciate it a lot. Regards.
Any footage of reverse flow annular liners? I work on PT6As and I rarely get to see internals upstream of the power section. ....well, without using a boroscope that is.
Hey ur videos are just amazing , I have been watching ur videos . Just wanted to know how many Ignitors and Injectors are present in an combustion chamber.....
Hi Jay, I would love to see more of the JFS100
I used to make the annular combustors for the RB199 in the Panavia Tornado