That color is ... not the one I would have chosen, but then again i'm on my sofa while you rebuild it and some guy will have this behind his back ... on a boat ! So as you said ... our taste in colors doesn't matter ! Great video as always !
That looks marvelous. Love the sound of the wind howling outside. It is a nice forewarning of what will be happening soon......Outlaw Allison to be moving air!
It's looking good! You're giving me ideas to dress up my engine although, it will have to wait until the show season is over. It's currently drab grey and stainless. I'm so looking forward to seeing yours fire up 🇬🇧
Yeah!! Niiiiice! The redish color goes really nicely with the shiny grey! Congratulations on putting it back together! The compressor outlet duct (correct term?) was really a piece of work, great that you managed! Can't wait for the next video! :)
The colour seems to change between shots, but I think it's going to look great outdoors under natural light. Red and steel grey are a good combination. Also just have fun with it -- it's not like you get to paint stuff in an interesting way very often :)
Shoutout to AgentJayZ! I'm watching a new video from Skyships about the A-12, and I am finally able to understand the basics of turbines thanks to a year of watching your stuff! soooo, when are you gonna build a ramjet powered boat?
Probably outside of the budget, but it would be cool to see how much more power you could get out of the boat engine if you thermal barrier coated the turbine section, added fuel, and allowed brief spikes in the turbine gas temps above the factory maximum.
The engine is ready for 400 Hp. It's derated because of the strength of the gearbox. A little knowledge can save you thousands... Plus, it's going in a 12 ft boat. I think a continuous rating of 270Hp will be exciting enough.
Yes! You need to make sure you are holding the painty thing so it squirts away from your face. It helps if you say that over in your head with an Ozzy Man voice!
Hay JayZ. You need to check out current offerings at the Bring a Trailer web site. I tried to attach a link to a 2018 street rail powered by a T50-BO-8A for sale in LA, CA, but RUclips would have none of it. Not sure what the auction reserve might be, but as of this writing it is sitting at a very tempting $25,500.
Pink Metallic? I though it was going to be RED. I like the contrasting colors. Seems there should be a third color thou . Like color coding of the different systems.
The how is that R-R bought up the Allison Engine Company in 1995, which became the Rolls-Royce Corporation. What were Allison Engines in Hercules and Ospreys are now Rolls-Royce engines, as are 250 engines. And the why? It means that R-R is now an onshore main contractor to the US military, albeit with certain security restrictions on classified engine programs. If, for instance (big if?), R-R was successful in getting the contract to re-engine the B-52, then the engines would be assembled in Indianapolis. PS the LiftFan for the F-35 was designed at R-R Bristol, but the work has been transferred to Indianapolis, and I believe that military engine work at R-R Bristol is managed from Indianapolis.
It looks nice. The red gives it a pop of color. Now that you’ve worked on this engine I have a question. If you were in a desperate situation could you count on this to power a helicopter?
This engine, plus a good pilot, will be safe. A helicopter is always safer, because it can autorotate into any decent landing spot. A good pilot is essential, though.
In recognition of the quality of AgentJayZ's quality workmanship (is it PC to say that now?), I have no doubt that this 250 would be good to use as a short-life flight engine. What would be uncertain for me, in terms of extending the life, would be the cyclic lives of the discs and shafts. I think he has commented on the lack of records, which is what would disbar it ever being allowed anywhere near a helicopter. Having spent the first half of a career lifetime in the design of aero-derivative industrial and marine gas turbines, I can tell you that, typically, their reliability had to be significantly improved relative to the original aero engine, often at the expense of some increase in weight. The industrial and marine engines that you may have seen AgentJayZ working on are certainly not the poor relations of the aero engines from which they were developed. Their operators expect them to have the reliability of the aero engine, but running at ground/sea level, with the higher loads and stresses that are the consequence.
please see this!!! I know I'm a week late and I haven't watched every vid but what happens if there is no combustor like will the air cause lift or does it have to be flame (ik I'm not very smart I'm new to this thing)
If there is no combustor outer case, the compressor will discharge into the surrounding air, making a lot of noise. If there is a combustor outer case, but no liner, the engine will run for a short time until the outer case melts, which is a bad thing. Air only causes lift under special circumstances, in a similar way that snow causes skiing. "does it have to be flame" : any answer you wish to place here will be fine.
If there is "no flame", nothing happens. One of the early terms for a gas turbine engine was 'a combustion turbine' (ie, not a steam turbine). Combustion is essential for the release of energy that can be converted into shaft power (or thrust). This applies whether internal and contained in the flow path of the working fluid (ie, air) through the turbomachinery, as in a gas turbine, or external, as in a boiler, for the release of energy, via heat transfer, to the working fluid (ie, steam) in a steam turbine. As AgentJayZ has told you, if there is no pressure vessel (ie, combustion chamber outer casing) to contain the air being delivered by the compressor, it would simply discharge into the surrounding air, "making a lot of noise", assuming that the compressor was being driven by, say, a big electric motor. However, in practice, it would mean that the engine could not possibly work as a gas turbine, as there would be no way for the turbine to produce power to turn the compressor. Any attempt to burn fuel in the combustion chamber without an outer casing would simply result in a raging open fire, which would be good for nothing more than use as a space heater. Also, as AgentJayZ has told you, if there was no combustion liner within a combustion chamber outer case, and fuel was introduced, very inefficient combustion might take place, and there just might be enough power produced for the turbine to power the compressor. However, as AgentJayZ has also told you, that outer casing would, very probably, rapidly overheat, soften and burst like a balloon. I've seen footage of an engine test with a failed combustion chamber. The outer casing glowed red and yellow hot, and eventually split open.
the important question here i have not seen you ever talk about, did you just fluke the union jack orientation, did you google the info or did you actually know it? im an english blooded multi generational aussie but even i would have had to google or guess it lol.
It's an Allison 250. A while ago, Rolls Royce bought Allison, so nowadays it's called a Rolls Royce 250, or RR250. It's a very popular light helicopter engine, but it's more expensive and more powerful than some people need. The expense of small turbine engined helicopters was likely one of the reasons the Robinson range of light piston-engined helicopters is so popular today...
Gonna be interesting. The programme output exceeds the time I get to watch, so I wind up missing gaps of days, weeks and sometimes months. Great to get back; logic is still King apart from the occasional Leprechaun. How about an episode showing the quickest way to find an answer to a question already answered on one of your earlier videos? I have my question but dont know how to search the answer in your videos and there are too many to go through all of them.
The Allison 250 C18 turboshaft engine is to a turbocharger what an antelope is to an ant. A turbo is a compressor driven by a turbine, with all of the important stuff between the two left out. Deleted. Not there. This channel is about gas turbine engines, and does not recognize the piston engine turbosupercharger as anything but a crutch for piston engines. Thank you.
![Felix "Unfair" | [Stray Kids : SKZ-PLAYER]](http://i.ytimg.com/vi/Oswujxm2Ag0/mqdefault.jpg)
I think that the Lime tape cover goes well against the Metallic Rhubarb colour.
Maybe consider some anodised Metallic Lime fittings.
Thanks for putting the music back.
That color is ... not the one I would have chosen, but then again i'm on my sofa while you rebuild it and some guy will have this behind his back ... on a boat !
So as you said ... our taste in colors doesn't matter !
Great video as always !
The pink is a nice touch. Once it goes in the boat, it'll be like George Patton wearing pink skivvies.
That fuel pump assembly @3:38 looks absolutely gorgeous.
That looks marvelous. Love the sound of the wind howling outside. It is a nice forewarning of what will be happening soon......Outlaw Allison to be moving air!
Scroll color: Beauty
That looks fantastic
Kind of has that anodized aluminum look we all love . I like it !!
Take care, things are going to get better. 830B looking good. Following with interest Or14.
Cheers from the Valley you know about.....:-)
The music is very fitting. The 250 is a majestic engine indeed
It's looking good! You're giving me ideas to dress up my engine although, it will have to wait until the show season is over. It's currently drab grey and stainless. I'm so looking forward to seeing yours fire up 🇬🇧
So a church is built near were they rebuild and test jet motors and he is nice enough to not want to disturb their service. He a nice guy
That 250 looks...Awesome....Thanks...!
Can't wait to see the adapter you use to put 830B in the test cell.
Love the colour....
That Allison must be feeling pretty insecure sitting next to that big Orenda!
Absolutely love that color! Also I can’t wait to see those ugly carbon steel exhausts removed!!!!
The engine looks nice!
Love to see this in action...
Yeah!! Niiiiice! The redish color goes really nicely with the shiny grey! Congratulations on putting it back together! The compressor outlet duct (correct term?) was really a piece of work, great that you managed!
Can't wait for the next video! :)
I think the color looks great. I know the green is just tape but it looks good against the red housing.
Hi Jay. Things are turning around now. Hang in there 🙂
Boat engine looks good. Maybe some type of polished stainless steel exhaust exits. Heat tinted of course....
Yay for Space Music!
The red looks great! Might not be right for a helicopter but perfect for a boat!
Those fuel pumps are as big as the 830B. 🚁+🚤=😎
Shocking Pink Metallic. Own it!!!
The colour seems to change between shots, but I think it's going to look great outdoors under natural light. Red and steel grey are a good combination. Also just have fun with it -- it's not like you get to paint stuff in an interesting way very often :)
Good colour.
Could the Allison drive the Orenda fuel pump?
It's 830B because the "B" is for boat.
@AgentJayZ which fuel will the 250 run on? And do you know roughly how much fuel it consumes on a boat run?
JetA. We will have to see.
nice Farley!
It looks Great 👍 ‼️‼️
That;s looking pretty.
Boat motor color is... interesting choice.
Shoutout to AgentJayZ! I'm watching a new video from Skyships about the A-12, and I am finally able to understand the basics of turbines thanks to a year of watching your stuff!
soooo, when are you gonna build a ramjet powered boat?
You know how well that would work. Glad you are having fun!
I would pay to see a ramjet powered boat.
The color is beautiful, reminds me of fingernail polish for some reason.
Lipstick on a bad girl!
@@AgentJayZ hey, I saw this last night and thought you may find it interesting. ruclips.net/video/ncFQ5aPwq1w/видео.html
Johnny, that be good, very good!
i love the color schema.
Thanks! :)
Probably outside of the budget, but it would be cool to see how much more power you could get out of the boat engine if you thermal barrier coated the turbine section, added fuel, and allowed brief spikes in the turbine gas temps above the factory maximum.
The engine is ready for 400 Hp. It's derated because of the strength of the gearbox.
A little knowledge can save you thousands...
Plus, it's going in a 12 ft boat. I think a continuous rating of 270Hp will be exciting enough.
@@AgentJayZ 270hp of turbine power in a 12ft boat - that could be classed as "beyond exciting" :-)
I'm waiting for the video of its first flight ;-)
I can't wait to hear that little engine run. Too bad you don't have a dynometer to measure the output power.
Boat name: Agent Allison
Why is it always a bolt or nut that engineers always hide in the worst possible place it is a PIA to remove.
They never have to work on them.
looking grate.
Is that the wind howling around the building?
Thats the church he was talking about
Boat Name: Unsinkable 2
Hi Jay I would like to learn more with you 😊
Could you please tell us what the music is? I would love to listen to that in my shop.
I searched for space ambient, and listened to a few broadcasts
will this make more power than unnatural disaster? same guys? how would you test the power if you did?
The data plate says rated power is 317. A good T58 puts out 1200. This boat will incorporate some cast off parts no longer useful to #357.
Never seen a turbine engine with a pink thong.
very funny
so what type of paint did you use on the magnesium parts? isn't it tricky painting magnesium?
Yes! You need to make sure you are holding the painty thing so it squirts away from your face. It helps if you say that over in your head with an Ozzy Man voice!
@@AgentJayZ ok, got it!
Hay JayZ. You need to check out current offerings at the Bring a Trailer web site. I tried to attach a link to a 2018 street rail powered by a T50-BO-8A for sale in LA, CA, but RUclips would have none of it. Not sure what the auction reserve might be, but as of this writing it is sitting at a very tempting $25,500.
Roar To life 4:39 ? At 50 whatever 1000 rpms, I think scream to life ! !
Accurate.
Call the boat "Firefly"
How about "Little Outlaw" for the boat name. Color is fantastic, lots of ooohs and ahhhs coming your way from here: "Oooooh Ahhhhh Oooooh..."
Pink Metallic? I though it was going to be RED. I like the contrasting colors. Seems there should be a third color thou . Like color coding of the different systems.
why do Rolls Royce now own the former Allison 250 ?
I can tell you how, but why? Why does anybody do anything?
The how is that R-R bought up the Allison Engine Company in 1995, which became the Rolls-Royce Corporation. What were Allison Engines in Hercules and Ospreys are now Rolls-Royce engines, as are 250 engines.
And the why? It means that R-R is now an onshore main contractor to the US military, albeit with certain security restrictions on classified engine programs. If, for instance (big if?), R-R was successful in getting the contract to re-engine the B-52, then the engines would be assembled in Indianapolis.
PS the LiftFan for the F-35 was designed at R-R Bristol, but the work has been transferred to Indianapolis, and I believe that military engine work at R-R Bristol is managed from Indianapolis.
@@grahamj9101 👍
It looks nice. The red gives it a pop of color. Now that you’ve worked on this engine I have a question. If you were in a desperate situation could you count on this to power a helicopter?
This engine, plus a good pilot, will be safe. A helicopter is always safer, because it can autorotate into any decent landing spot. A good pilot is essential, though.
In recognition of the quality of AgentJayZ's quality workmanship (is it PC to say that now?), I have no doubt that this 250 would be good to use as a short-life flight engine. What would be uncertain for me, in terms of extending the life, would be the cyclic lives of the discs and shafts. I think he has commented on the lack of records, which is what would disbar it ever being allowed anywhere near a helicopter.
Having spent the first half of a career lifetime in the design of aero-derivative industrial and marine gas turbines, I can tell you that, typically, their reliability had to be significantly improved relative to the original aero engine, often at the expense of some increase in weight.
The industrial and marine engines that you may have seen AgentJayZ working on are certainly not the poor relations of the aero engines from which they were developed. Their operators expect them to have the reliability of the aero engine, but running at ground/sea level, with the higher loads and stresses that are the consequence.
Wile e Coyote always gets back up and dusts himself off.. Re-paint the thing to match the pumps is what I would say..
it must be interesting in Church when a big jet engine is wound up.
Just before splat.
Hello sir.. I am a physics graduate and I wanna to know more about the engine of jets...
Please tell me how I can...
So, you're a graduate, and you have a degree in physics?
And you are asking me how you can find out more?
I just do not believe you.
Name for the boat: Orenda
please see this!!!
I know I'm a week late and I haven't watched every vid but what happens if there is no combustor like will the air cause lift or does it have to be flame (ik I'm not very smart I'm new to this thing)
If there is no combustor outer case, the compressor will discharge into the surrounding air, making a lot of noise.
If there is a combustor outer case, but no liner, the engine will run for a short time until the outer case melts, which is a bad thing.
Air only causes lift under special circumstances, in a similar way that snow causes skiing.
"does it have to be flame" : any answer you wish to place here will be fine.
If there is "no flame", nothing happens.
One of the early terms for a gas turbine engine was 'a combustion turbine' (ie, not a steam turbine). Combustion is essential for the release of energy that can be converted into shaft power (or thrust). This applies whether internal and contained in the flow path of the working fluid (ie, air) through the turbomachinery, as in a gas turbine, or external, as in a boiler, for the release of energy, via heat transfer, to the working fluid (ie, steam) in a steam turbine.
As AgentJayZ has told you, if there is no pressure vessel (ie, combustion chamber outer casing) to contain the air being delivered by the compressor, it would simply discharge into the surrounding air, "making a lot of noise", assuming that the compressor was being driven by, say, a big electric motor. However, in practice, it would mean that the engine could not possibly work as a gas turbine, as there would be no way for the turbine to produce power to turn the compressor. Any attempt to burn fuel in the combustion chamber without an outer casing would simply result in a raging open fire, which would be good for nothing more than use as a space heater.
Also, as AgentJayZ has told you, if there was no combustion liner within a combustion chamber outer case, and fuel was introduced, very inefficient combustion might take place, and there just might be enough power produced for the turbine to power the compressor. However, as AgentJayZ has also told you, that outer casing would, very probably, rapidly overheat, soften and burst like a balloon.
I've seen footage of an engine test with a failed combustion chamber. The outer casing glowed red and yellow hot, and eventually split open.
the important question here i have not seen you ever talk about, did you just fluke the union jack orientation, did you google the info or did you actually know it? im an english blooded multi generational aussie but even i would have had to google or guess it lol.
I did look it up. At first I didn't notice the swirl.
I think it's amazing how a helicopter engine can become a boat engine
A mr Hamilton in New Zealand invented the water jet for boats, as used today in jet Skis etc.
is that a helicopter motor??
Haven't done your reading, have you...
@@AgentJayZ Correct I'm visually impaired and it's very hard to do that!! :-(
It's an Allison 250. A while ago, Rolls Royce bought Allison, so nowadays it's called a Rolls Royce 250, or RR250.
It's a very popular light helicopter engine, but it's more expensive and more powerful than some people need.
The expense of small turbine engined helicopters was likely one of the reasons the Robinson range of light piston-engined helicopters is so popular today...
Gonna be interesting. The programme output exceeds the time I get to watch, so I wind up missing gaps of days, weeks and sometimes months. Great to get back; logic is still King apart from the occasional Leprechaun. How about an episode showing the quickest way to find an answer to a question already answered on one of your earlier videos? I have my question but dont know how to search the answer in your videos and there are too many to go through all of them.
Go to channel page. Play with the search bar using key words in your question.
Australian flag!
Boat name: "Never Given" (suggested by somebody else a while back)
I'd say right color at wrong place😬
It legit looks like a dual discharge turbocharger with a giant accessory gear box. You are well qualified to talk about turbos. 🤷♂️
The Allison 250 C18 turboshaft engine is to a turbocharger what an antelope is to an ant. A turbo is a compressor driven by a turbine, with all of the important stuff between the two left out. Deleted. Not there.
This channel is about gas turbine engines, and does not recognize the piston engine turbosupercharger as anything but a crutch for piston engines. Thank you.
First