US and Europe Testing World’s Most Advanced Aircraft Engines Ever Made

Welcome back to the Fluctus Channel to explore the incredible technology used to develop what could be the future of aviation engines and propulsion.
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[@RustyShackleford9000]

This technology has been around since the 1980’s, but the issue has always been that they’re insanely loud and break noise ordinances for residential areas near airports..

[@carlthor91]

Yep, I thought the old Noordyne Norseman was loud, with it's ungeared 3 blade propeller. These are a lot more powerful. WOW!

[@FirstLastOne]

Most of these KZbin video creators are going for clicks, NOT facts. Never let the reality of the facts get in the way of $. 😉

[@LSmiata]

And not shrouded with pieces hitting fuselage on failure (bird strike or other)

[@carlthor91]

@@LSmiata No, mere flesh, doesn't survive the Ginsu treatment well, at all, generally it's the compressor section inside, that gets trashed by bird strikes. The blades are waaay thinner, and brittle.

[@keithvsmith]

Right, I think it was the show "Beyond Tomorrow" back in the 80 that showed this and multiple working flying cars prototypes.

[@ronykhan8126]

Incredible Technology 😍

[@Mike-fj2ln]

GE and Pratt were testing the same type of engine in the mid 1980s, nearly 40 YEARS AGO. But I suspect this guy wasn't born then.

[@obelic71]

Correct but this first UDF (Un Ducted Fan ) tech by NASA and GE was put on the backburner in the 80's. The prove of concept worked, but at that time do the higher noiselevel, extreme high production costs and low fuel costs made the UDF financial uneconomical and political unwanted. Due to modern composites, new tech and high fuelcosts GE, P&W and Safran/CFM work togheter for the the 2nd generation UDF. The 2nd gen UDF makes now less noise then a "regular' ducted fan due to the fact that one set of blades is stationary instead of counter rotating in the original UDF. This Makes this low fuelburn/noise engine a sustainable option for "regional" jets. Point to point travel did explode so the demand for economic to operate "regional" jets has drastic increased. The term regional has been watered down today. The baby Airbus the A318's with luxury seatings is operated by British Airways as an intercontinental aircraft on the London to New York route!. Smaller aircraft more departures in a day. And budget/holidaycharter airlines use f.e 737's in cattletruck seat configuration for the low and medium routes.

[@deanhoman1958]

The new concept uses a stator section rather than counter rotating. Very different from the old ones you refer to. Noise reduction is the idea.

[@obelic71]

@@deanhoman1958 Correct i mentioned that when i mentioned a set of stationary blades (they have pitch control) "The 2nd gen UDF makes now less noise then a "regular' ducted fan due to the fact that one set of blades is stationary instead of counter rotating in the original UDF." Modern computers and software made that improvement possible on the 80's UDF.

[@imano8265]

This technology is long overdue. I wonder why they are still not ready to use this technology. 2035? What?? In more than 10 years?? They´re probably joking or don`t have the guts. Something is not right there.@@obelic71

[@hesedagape6122]

Lol stealing the Bear bombers engine and adding extra tech

[@abisolaajifowobaje1708]

An Aerospace Major watching this all the way from Nigeria and just wishing I could participate in bringing any of these engines to life.

[@eddiemunster8634]

😅😂😅😂😅😂

[@itskyansaro]

turboprops are a 1940's technology

[@JoeHamelin]

Apply to Safran.

[@thorwaldjohanson2526]

​@@itskyansaroturbojet and turbo fan core concept is ancient too. That does not mean there hasn't been significant developments and improvements made. I think a lot of people underestimate just how complex modern aircraft engines are. There's a reason there's only a handful of companies in the world who can make them.

[@deneb80]

Suya is the answer to everything

[@jackb171]

Bahahaha the udf project was scrapped due to noise. I was lucky enough to know the lead engineer on the project. He was a good friend and mentor.

[@williamhumber5890]

Yeah, surprised that minor detail wasn't mentioned. =)

[@benediktmorak4409]

@@williamhumber5890 NEGATIVE details are always not shown... ONLY the positive sides. And after the argument will be, well the airports were here first. And then came scopulos developers who built near airports.

[@tomardans4258]

I remember them in the nineties.

[@jamesp13152]

I kept thinking how cool it would be if the Wright brothers could see this.😁

[@PassportBrosBusinessClass]

If the Wright Brothers could fly business class on Emirates like I do, they'd either be mind blown with the ability to sit and eat a full meal, the ability to get alcohol from a BAR on the plane or the ability to take stand up showers.

[@sandasturner9529]

Truth

[@JamalKayani-r2g]

I love technology.

[@Sacto1654]

The CFM _Rise_ demonstrator shows the lessons learned from the GE Aerospace UDF36 program. With ten blades on a single propeller spinner and ten fixed blades behind it, it eliminates the noise that was the downfall of the earlier propfan designs.

[@vaterchenfrost7481]

I thought, although reduced, the noise was still an unsolvable problem especialy after more restrictive noise reduction policies especialy in the EU. It is a general issue if you have some blade system rotating near some kind of edges. Be it second blade system, rotating or not, fins, or other kind of aerodynamicly acting edges and surcases. You know this kind of problem by pusher props as well. If you've noticed they've avoided talking about the noise issue for this system entirely.

[@starfighterusscv-6693]

It's slow, maybe 400 knot's. Cruise speed never mentioned.

[@chrissmith2114]

The steam turbine for ships invented by Parsons in 1890's had rotating and fixed blades - so why is this different

[@apterachallenge]

@@starfighterusscv-6693 That alone would make the aircraft more efficient. The slower you go, the less drag. Drag increases logarithmically with speed.

[@bradcrosier1332]

@@apterachallenge- PARASITE drag does, induced drag decreases.

[@blueneptune-u8z]

Testing this since the 60s

[@TheImfromcalifornia]

About 30 years ago, NASA and GE developed the GE-36, an Ultra High By-pass Un-ducted Fan, that is capable of producing 10,000-15,000 hp! They couldn't figure out how to mount it to commercial aircrafts without ripping off the airframe during flight.

[@DinoNucci]

Duct tape

[@romanschokutas8729]

@@DinoNucci скотч не выдержит , для этого есть синяя изолента , на все случаи жизни )))

[@qwwe1324]

70 лет назад изобрели 15000 л. С. Нк-12😂

[@joevenuti1201]

Pratt & Whitney was testing a prototype of this engine 40 years ago.

[@PatrickDuffy-u3s]

What happens if a blade fails on the open fan design? It will cut through the fuselage like a hot knife through butter.

[@cgirl111]

You are correct. Turbine blades can and do separate on occasion. I can't see the FAA certifying this design without major regulation changes.

[@DHEFDAWG]

@@cgirl111 Why wouldn't they certify it with the exact same process and standards that all of the other turboprops have been certified with?

[@cgirl111]

@@DHEFDAWG Because the current regulation is that a failed fan blade must be contained inside the nacelle. I don't know what the difference is between the a standard turbo prop and this engine is but I will start looking into it. It looks to me that the only difference between a high bypass jet engine and a turbo prop is the nacelle and containment. There has to be a regulatory difference but I haven't looked for it yet.

[@DHEFDAWG]

@@cgirl111 Depends on what regulation you're talking about. For propellors, look at 14 CFR Part 25.905(d) Design precautions must be taken to minimize the hazards to the airplane in the event of a propellor blade fails or is released by a hub failure. Hazards that must be contained include damage to structure or vital systems due to failed blade and the unbalance created by such failure. For turbofans, 14 CFR Part 25.903(d)(1) Design precautions must be taken to minimize hazards to the airplane in the event of rotor failure or fire within the engine which burns through the case. Interestingly enough, as stated in FAA AC 25.905-1 Section 5.a. states that amendment 25-45 to 14 CFR Part 15 in 1978 added to Part 25.571 "(e) the airplane must be capable of completing a flight during which structural damage occurs as a result of ... (2) propellor and uncontained fan blade impact. So there used to be a distinction between props and "uncontained fans"... but now the legal definition of propeller from 14 CFR Part 1.1 is "Propellor means a device for propelling an aircraft that has blades on an engine-driven shaft and that, when rotated, produces by its action on the air, a thrust approximately perpendicular to its plane of rotation..." Which encompasses the "uncontained fan" - it's really just a bunch of fancy propellor blades. I guess what I am getting at by throwing all of this FAA policy at you (which I had to research to make this comment, nobody memorizes that stuff lol) is that there isn't really a specific reg that the blade has to be contained today as far as I could find (at least in FAA)

[@alexlo7708]

@@DHEFDAWG Because this fan blade has much higher energy than an ordinary turboprop fan. It turns faster rpm. So it's more dangerous has any break occurs.

[@karstendoerr5378]

The open rotor drive is actually nothing but a cross between turbofan and turboprop. So you combine the advantages of both engine variants.

[@paulwatson6013]

New generation bird shredders!

[@fredfred2363]

A couple of engineering points to consider- Open turbines, without a nacelle are significantly louder. Really loud. The ceramic components allow leaner burn, using less fuel, but a significant increase in NOX emissions. Not good for acid rain.

[@imano8265]

What the so called " jetengines" make loud, ist the turbo-jet component, which is ptretty much dimmed by the sheath current caused by the propeller/fan/ rotor. I experienced the early jets like DC 9, Caravelle, Boeing 727 and so on starting. They were defenitely at least 3 times as loud as contemporary turboprops for example.

[@christianhorn8811]

The Open Rotor exist since 1988 on a demonstrator (MD81) so very modern today ;-)

[@StanTrnik]

Waste of money and time, they should use more efficient open rotor electric motors which are muuuuch more simpler.

[@garypeatling7927]

Perhaps better technology can improve

[@thorwaldjohanson2526]

That's like saying a tesla is nothing new since electric cars have existed for like 130 years

[@mahmoodsoleja9068]

Fantastic ! 🌟

[@5ik1]

Great video 👍🏻

[@mahmoodsoleja9068]

Thank you ! 👍

[@5ik1]

Badi meherbani 👍🏻

[@leokimvideo]

Old tech, been around since the 80's and it's huge problems have never been sorted out

[@garymiller5937]

Very interesting and high tech. 😊😊😊❤❤❤

[@johnstuartsmith]

I'll wait for the video where the test engine is spun up to max power and then gets a goose carcass tossed at those great big fan blades.

[@amyjojinkerson-b6o]

it is like going back to propellers

[@tedstriker754]

This newer unducted fan, I wonder how it compares to the unducted fan mounted on an MD81 in 1988? Any improvements in the noise level? They look very similar.

[@richardbriansmith8562]

Awesome Video 😊

[@Dilbert-o5k]

The propfand have no blade containment if a blade breaks, as well as being very noisy.

[@kinka16]

not very noisy

[@whitejazz100]

They can armour plate the fuselage section next to the blade

[@sylvesteralelele9497]

I saw a similar engine from Kuznetsov! I think it was called the KN 93 and was meant to power IL-96, but then was discontinued!

[@mzimm460]

Weve been seeing this design since the early 80's

[@paulapril]

Not a new idea. UDF or Unducted Fan was experimented with in the late 80s

[@BStrapper]

Electric cars existed before ie cars...❤

[@hoppercar]

Why don't you test a new type of airport, that isn't a hassle to get thru with security checks....baggage costs...and delays and cancellations

[@sandrovargas151]

For more than 30 years, motors the GE36 and NK96 have existed, they were discarded because they were not silent and because of the vibrations they produced.

[@JeremeyHowlett]

Hopefully open rotor technology knows the real fuel consumption of jets.

[@edutaimentcartoys]

nice video, The technology will become more sophisticated every year

[@mrrolandlawrence]

I wonder how they are going to fit these on the next b737?

[@geneb5482]

Good one. Made me smile

[@frednoname3714]

J'espère que ce RISE va fonctionner il semble qu'ils ont résolu le problème majeur pour le civil...LE BRUIT...encore une idée française !! Et une collaboration réussie avec GE depuis longtemps

[@KenanTurkiye]

escape the matrix trust me (I'm sure you've heard of that many times, only once is it true) come this way you'll get it when you get it when you get it, pray for us all as all of us who get it do it for the rest hurry

[@mananaVesta]

Looks like Tu 95 engines, in service since the 50s

[@GHOOGLEMALE]

Like the way they showed a smokey old Trent XWB - I expected a zoom in on a coal scuttle

[@johnstuartsmith]

A lot of the fuel-saving advantages of these come from the ability to change the pitch of the big fan blades so that the engine is more efficient over a wider range of power, altitude and rpm settings. The Pratt and Whitney geared turbofan designs are providing similar benefits.

[@reubenmorris487]

This is the stuff adds value to mankind and society...

[@jannejohansson3383]

And don't forget war tool's. Those could remove all value from everything in "wrong hands"..

[@corwin5557]

What about generated noise levels and what happens in case of a blade failure or bird strike?

[@stussymishka]

THIS is the type of stuff our nation needs to be worried about

[@reportofficer2524]

The open fan design was invented decades ago, but it was found that such engine was simply too loud. That's what I know.

[@Mach-6]

Amazing....!!!!!!

[@ioanbota9397]

Realy I like it

[@johnnunn8688]

A big fan engine, has a containment casing. ‘Nuff said.

[@thorwaldjohanson2526]

The true danger comes from the fast spinning heavy discs in the core, which is still contained.

[@johnnunn8688]

@@thorwaldjohanson2526 you admit you know nothing. If the turbine discs are contained, where’s the danger? Which discs are you talking about, the LP turbine for the fan? These big blades AREN’T contained, which is my point.

[@thorwaldjohanson2526]

@@johnnunn8688 the prop / fan blades ar geared and spin slower. The most dangerous part is the disc holding the high pressure turbine. This disc (or 2 discs) spin thr fastest and are very heavy, as they have to withstand very high centrifugal forces at high temperatures. I'm sure that Cfm and airbus are considering the failure modes. Now this might just be an educated guess, but I suspect that a broken prop blade could cause pressure hull breach, but it would not slice right through thr aircraft and cut electrical / hydraulic lines like a failed disc would. In aircraft design you have to reach a 10^-6 chance per flight hour chance of a catastrophic failure. I'm sure they can achieve that.

[@TFlight77]

I think the open blade technology engine could be advantageous but am wondering if it gets considered a turbo prop or not and would it somehow have to demonstrate blade containment like regular jet engines in accordance with 14 CFR 33.94

[@Alex-Pilot]

The fan motor is very noisy and this is the main problem. The second problem is the large dimensions of the fan. So far, the best thing that has come out of such engines is the Russian NK-93. But it is also suitable only for overhead planes. Moreover, the collapse of the Soviet Union did not allow him to go to the series.

[@imfloridano5448]

The problem with jet engines is they are all "Complex, Sophisticated Process, and Advanced Manufacturing Processes" which complicates the troubleshooting and repair of the engine. When broke replace it at double the cost

[@rickbullock4331]

Will any of these engines withstand a flock of Canadian geese flying through them over the Hudson?🫢🤔

[@pmullins1495]

NO

[@mr.lynnrosaasen8218]

Sorry, but the geese are Canada geese, not Canadian geese. There is a big difference! Canada geese do live in the US!

[@kandd2591]

these engines have existed since the 1980s and always had problems with being way to loud

[@Goldenhordemilo]

bird strikes might get messy

[@landofstan246]

Carbon dioxide is good for plants. Plants are good for people. Therefore carbon dioxide is good.

[@cowboypatriot6052]

How do we know if it's the most advanced when it's a prototype?

[@Perich29]

I was hoping to see the CFM Risa engine the open rotor engine.

[@lkp7481]

How is this different from a fancy turbo prop?

[@stryker4240]

UDF engines are very fuel efficient

[@AishaShaw-cl6wc]

I’ve always felt like I had it in me to create a better payload delivery system.

[@DJM3LVIN]

Hell yeah I agree here ❤️👍

[@deankravos9275]

This technology is available on TU95 from 1952

[@peterxyz3541]

This “un-shrouded” blade or propeller design was created in the 70s (due to the Oil Crisis) and tested in the 80s; but, never put in use

[@whitejazz100]

The hard part is gearing the fan blade(s) to spin slower than the turbine

[@MykePagan]

Isn’t this just a fancy turboprop?

[@DanielSmith-lv5ed]

Ive thought about sharpening the blades on my radiator just to help the motor and the berrings out, but i can hold off for now

[@arcanondrum6543]

Ducted versus not is, according to what I have watched recently, NOT a settled debate.

[@chrissmith2114]

The steam turbine for ships invented by Parsons in 1890's had rotating and fixed blades - so why is this different

[@texaswunderkind]

They developed a propeller engine! Someone should tell them about the 1910's.

[@pmullins1495]

YES, And very sophicated high performance propeller engine towards end of WWII

[@PassportBrosBusinessClass]

SO BASICALLY, we're going BACK TO PROPELLERS...

[@papayspeanut]

Birdstrikes are going to be brutal

[@DiogoSantos-oo4lr]

Faz um vídeo sobre o KC 390 🇧🇷🇧🇷🇧🇷

[@yomeroyomismo8681]

Well, now Americans and Europeans admit that the Russian design for airplane engines was a good idea.

[@kampilandelacruz4925]

Nice diversity. Great companies to work.

[@christophe29820]

Ca ressemble beaucoup à de turbopropulseur de TU 95 des années 50. Rattrapage ?

[@moroboshidan7960]

I've seen videos of tests in which the engine case hold debris in case of bird collision and/or something breaks from the engine, specially the blades. I wonder what would happen with that open fan engine.

[@NedumEze]

Human capacity is looking limitless!

[@eduardodaquiljr9637]

It can't replace ducted fan engine,due to the latter can generate more pressure compare with UDF engine with the same size of turbine and compressor

[@psychiatry-is-eugenics]

Reminds me of battlefield earth .

[@deonellis8577]

...and Rolls-Royce is laughing at all of them 😆

[@lordpetrolhead477]

The RR Ultrafan rules OK 👍

[@omanhamad8905]

You have got 737 max which has led to many disastrous crashes. It is not only reduction in fuel but even in lives.

[@pmullins1495]

Population Reduction (ie, Bill Gates, George Soros, NWO dictators, ...)

[@984francis]

Concord switched from compressor to ram mode at supersonic speeds.

[@m.micola6181]

Do jet engine mfg. still use the frozen goose test by tossing it into the engines

[@paulroberts7429]

Russian's now as a nuclear propulsion ramjet/turbojet engine which as finished all its testing.

[@jamesboberg]

I don't like the open-engine propeller, it makes me nervous when I fly on the plane, I like the way a closed-engine is better than an open-engine.

[@nordique59]

A bold faced dales pitch!

[@glennllewellyn7369]

Yes. Yes it is. …I think.

[@kinka16]

you like it ? it is french 🇫🇷🗿🍷

[@eddiemunster8634]

The genius of the caucasian people is unmatched !

[@dirkpitt5468]

I remember sound issues with these external fans. Anyone?

[@pakjohn48]

I sometimes read the comments on new technology just for a laugh. KZbin is full of know-nothing technology armchair experts.

[@caygill2]

Pls note, none of video relates to the subject. Best part was the clip of milling the old 4 cylinder engine block,

[@andrewfalenski6583]

Why don’t they try winglets on the tips of the fan blades. They have been proven to increase efficiency with airfoils.

[@andymassie3931]

I believe Boeing played with these in the ‘80’s as part of the 7J7 project ment to replace 727 and 737. It wasn’t successful thus we have 737 Max.

[@ThreePhaseHigh]

With the engines used today if you were part of the ground to you had to be careful not to get sucked into the engine. But this thing is going to wind up shopping a lot of heads off.

[@AugustKling]

Mehr Menschenrechte wäre viel wichtiger!

[@FredPilcher]

Wow! Turbo ramjet! Just like SR71 used in the 1950s! Everything old is new again.

[@KhanGul-dx3li]

15 Feb 2024 11 :33 pm😮😢

[@shootloadrepeat]

Open rotor Fan bypass ratio=7billion to one lol

[@andrewg1493]

Has this guy heard of Pratt & Whitney? The F135 is the most advanced / highest performance / most reliable military engine on the planet lol. He shows a bunch of Pratt engines but never even mentioned the company. Also it’s hard to talk about CFM & Trent without mentioning GTF as well…

[@frankmorgan2772]

But this system has been tested by DASSAULT Open Rotor Engine Simulation , but the most famous and still functional is the TUPOLEV TU-95 bomber, still flying around our borders !!

[@richardwaugh2049]

You're not trying out for an emotional Hollywood part so keep your reading in an informational calm format

[@PrinceThewold]

جي ..الولايات وليس الواليات😂😂😂😂😂😂😂

[@2wwwilly]

You haven't seen China going to unveal a super energy saving engine ..😂😂❤❤

[@AmarilioSongWriter]

Airplanes engines needs reliability as well... mainly