N.B. for those interested in the Physics...On the GE90-115B there are different specifications for different operators. Some airlines, such as Emirates as just one example, have some of them rated 'H' (for Hot and High altitude operations). Thermodynamics of this engine with full load and in Hot and High density altitude conditions requires a reduction from Max thrust after about 3mins+ as the EGT (Exhaust Gas Temperature) will likely exceed max thermodynamics of the engine after this time....hence the significant (audible) for pax sound of the engines reducing to 'climb' power after takeoff. Effectively, the engine would 'melt' theoretically after much more than 3mins+ at Max thrust in a Hot and High density altitude. (Apologies if this factoid is boring/nerdy to some). N1 Fan Blade length is also increased at micrometer dimensions for the 'H' version of this engine (perhaps other variants, like 'G' also). This miniscule addition to front fan blades can be heard (subtly) and it is intended to cope with things like, for example, sand and dust wear as experienced in the Middle East. So, the different variants have (barely audible) differences and depending on the thrust settings on the actual take-off requirements of the day/flight. Hope this is helpful to those interested...the manufacturers (Several companies apart from GE) generally don't make this info available to the public.
@@1999fxdxyea these engines are quite amazing the thrust they can put out. Can you imagine an IL-76 with 4 115's? It could probably take off at almost vertical.
Just love the "growl" the engine makes during startup (1:16) I live about 5 kms north east of Sydney Airport and when the wind is gently is blowing from the west or southwest in the late evening you can hear that absolutely unique sound when the last 777s leave before curfew. Amazing piece of engineering.
That's the fuel being injected into the engine once the starter (fed by bleed air) has spun the engine to a sufficient RPM for its combustion to be self-sustaining.
Hey Ross. I was on a job site in Wollstonecraft, North Sydney, when during our break, we could hear a GE90 being started up. I think it was a Garuda Indonesia flight judging by FR24. Amazing how far sound can travel. The builder I was with couldn’t believe that what we heard came all the way from the airport.
60 years old and I never take this technology for granted as it is the closest I will ever see space in my lifetime. The infrastructure and the reliability of the technology has amazed and made the impossible - possible. Just returned from a 10 hour international non-stop flight and find it amazing these 'homes in the sky' can operate continuously in almost all conditions.
The engineering and design that goes not only into the engines but the actual aircraft is amazing. Many people forget the people that maintain the engines and aircraft to actually keep them in the sky. The pilots and the flight attendants take the glory but the maintainers are the forgotten and unrecognised
Fun fact: the largest and most powerful jet engine ever built wasn’t some classified one-off prototype built by the Cold-War-era Soviet Union for military applications, but it’s actually a modern turbofan that is widely used on a widespread civilian airliner and that has proven reliable and efficient for an engine of its power.
Glad that GE90-115B was chosen as the exclusive 777-300ER/200LR/F engine. I remember Rolls Royce were designing a Trent 8000 to power these aircraft and compete with GE90-115B but wonder what happened to that engine. Apparently even Pratt and Whitney were working on a more powerful and efficient variant of PW4000 to get to power the 77W and 77L.
Rolls Royce and Pratt & Whitney were two of the three companies Boeing looked to when they were first building the 777. Rolls Royce did make an engine of their own, and so did Pratt & Whitney, but it was General Electric GE90 that won the competition for which engine would power the 777. As far as what happened to the other engines, I don't have any information about that.
Fantastic video. For those that don’t know, the white cowl fitted to the front of the engine in this video is called an bell mouth. Only used in engine test cells. When the engine is fitted to the aircraft wing, a different nose cowl is fitted
The engineering of the engine itself is amazing enough. But designing and qualifying a facility to do this kind of testing is also pretty amazing. Accounting for, in all aspects of the facility design and construction, the acoustical energy, the vibrations, providing fuel and air, "quieting" the exhaust, reacting the forces involved, accounting for safe handling of engine failure cases in the test cell--say a fan blade lets go--amazing!
Makes me think of Bugatti calling up Formula 1 wind tunnels to test the aerodynamics of the Veyron and being told "we don't go up to those speeds." I can just picture GE calling up test stand manufacturers and hearing "you want to test an engine with how much thrust!?"
The power is astronomical, but the actual force is just over 500kN, which is not THAT much for something stationary. Structures that can hold 50 tons aren't anything particularly wild.
Noticed Max thrust reduction shortly after full spool-up. Normally, in operation, the engine should be rated for 3mins+ at Max. Looks like this was a 'raw' engine before fan blade 'balancing' as quite significant vibrations noted.
Ge90 HMU has a overspeed governor that activates separate from the fadec. It was probably activated almost immediately after max thrust was initiated and cut back fuel flow from the nozzles
What’s cool about this about this particular sequence is that you will never actually hear it on a commercial aircraft. When setting takeoff thrust the pilots move the throttles to an intermediate thrust setting for a few moments and check both engines spool up together. This is so that they don’t end up having one engine go to a high thrust and the other one not (on a twin) as that could cause loss of lateral control.
Two of these engines pointed down would turn a Boeing 737 into a helicopter that could take off vertically. Heaviest 737 variant I'm aware of is a little under 200,000 pounds. Two GE90-115 engines make 230,000 pounds of thrust. One GE90-115 is worth about four F16 fighter plane engines with their afterburner on.
Is it me, or did it sound slightly weird and not “as loud” as when plane spotting? Specially at 2:51 compared to the initial spool and slowly went fainter and fainter
I do agree that the wonderful sound that this engine makes is quite awesome, but it does not begin to compare to the beautiful music that the TF-39 from the C-5B Galaxy made. Go on, you know I'm right! 😎
Notice how after the rocket powerful spoolup even with the reduction shortly after, the room looks like its shaking and the engine is about to knock everything over.
@@Viking88Powerthe RB211-524 had a horrible and unmistakable low pitch hum during start up, could feel it through my bones. Heard it many times on the headset during pushback. Didn’t think it was ever going to accelerate 😂
2:35 I'd give my left bollock to be in the guy who pushes the throttle to the max 🥹 You can not tell me he did not feel like an excited 10-year old at that moment!
I guess it's just my ears, but it sounds to me like, after it initially spools up to max thrust, over the following 20 seconds or so it slows down ever so slightly.
Interesting. The white cowl on the front of the engine is called a bell mouth. Only used inside an engine test cell such as this. When the engine is fitted to the wing of the aircraft it has a different nose cowl fitted. I can only assume that part that moved at @3:02 is unrelated to the engine operation
Is it just me or does this not sound like an actual max-thrust test (or at least not achieved lol.) I realize it’s governing itself for some reason, but even the initial run-up doesn’t sound right. It sounds more like what you’d expect during a takeoff roll when they wait for the engines to stabilize momentarily before going to full power.
LOOK HOW FAST THAT SPINNER IS ROTATING. WOULDNT WANT TO BE CAUGHT NEAR IT WHEN ITS AT FULL POWER. IVE HEARD THEIR LIKE GIANT VACUUM CLEANERS AND SUCK IN ANYTHING INCLUDING AIR!!! Yikes!!
N.B. for those interested in the Physics...On the GE90-115B there are different specifications for different operators. Some airlines, such as Emirates as just one example, have some of them rated 'H' (for Hot and High altitude operations). Thermodynamics of this engine with full load and in Hot and High density altitude conditions requires a reduction from Max thrust after about 3mins+ as the EGT (Exhaust Gas Temperature) will likely exceed max thermodynamics of the engine after this time....hence the significant (audible) for pax sound of the engines reducing to 'climb' power after takeoff. Effectively, the engine would 'melt' theoretically after much more than 3mins+ at Max thrust in a Hot and High density altitude. (Apologies if this factoid is boring/nerdy to some). N1 Fan Blade length is also increased at micrometer dimensions for the 'H' version of this engine (perhaps other variants, like 'G' also). This miniscule addition to front fan blades can be heard (subtly) and it is intended to cope with things like, for example, sand and dust wear as experienced in the Middle East. So, the different variants have (barely audible) differences and depending on the thrust settings on the actual take-off requirements of the day/flight. Hope this is helpful to those interested...the manufacturers (Several companies apart from GE) generally don't make this info available to the public.
Thanks! I guess this makes me nerdy but I found your info interesting.
@@reddog-ex4dx Cheers!
Excellent
Intersting, but if you know what makes the unique sound when its on max thrust ?
@@Bro-uc2jz which sound are you referring to? There are multiple sounds.
This single engine puts out more thrust than all four of a 707's engines combined, its pretty wild.
Also to take note of is that these engines deliver 2 times the power of Titanic’s engines.
Puts out more than 6 707 engines of the JT3D-3C that most airlines flew.
@@Youneedsomething..thats crazy I didnt know that, thanks.
@@1999fxdxyea these engines are quite amazing the thrust they can put out. Can you imagine an IL-76 with 4 115's? It could probably take off at almost vertical.
This is how the 777 beat the A340 and made Airbus discontinue it
Just love the "growl" the engine makes during startup (1:16) I live about 5 kms north east of Sydney Airport and when the wind is gently is blowing from the west or southwest in the late evening you can hear that absolutely unique sound when the last 777s leave before curfew. Amazing piece of engineering.
That's the fuel being injected into the engine once the starter (fed by bleed air) has spun the engine to a sufficient RPM for its combustion to be self-sustaining.
Hey Ross. I was on a job site in Wollstonecraft, North Sydney, when during our break, we could hear a GE90 being started up. I think it was a Garuda Indonesia flight judging by FR24. Amazing how far sound can travel. The builder I was with couldn’t believe that what we heard came all the way from the airport.
@@Silvera-Avian im not sure but I think its also because the rotors are massive which creates low frequentie sound
that bass sound irl in the cabin is ear orgasm af.
@@passawishpaktiwong4581 FR I HEARD IT ITS AMAZING
The sound 🤤 2:40
60 years old and I never take this technology for granted as it is the closest I will ever see space in my lifetime. The infrastructure and the reliability of the technology has amazed and made the impossible - possible. Just returned from a 10 hour international non-stop flight and find it amazing these 'homes in the sky' can operate continuously in almost all conditions.
The engineering and design that goes not only into the engines but the actual aircraft is amazing. Many people forget the people that maintain the engines and aircraft to actually keep them in the sky. The pilots and the flight attendants take the glory but the maintainers are the forgotten and unrecognised
The whole room is vibrating
Amazing.
0:39 The iconic 777-300ER startup shaking the terminal
Btw. Jerry and Gilly, please never change. You are fantastic and I will never get tired of your shows!
Wonderful stuff! Pure POWER!!
Fun fact: the largest and most powerful jet engine ever built wasn’t some classified one-off prototype built by the Cold-War-era Soviet Union for military applications, but it’s actually a modern turbofan that is widely used on a widespread civilian airliner and that has proven reliable and efficient for an engine of its power.
I couldn't tell you how many times i kept rewinding this back to the 2.38 mark 😏😏, absolutely love that sound .
Glad that GE90-115B was chosen as the exclusive 777-300ER/200LR/F engine. I remember Rolls Royce were designing a Trent 8000 to power these aircraft and compete with GE90-115B but wonder what happened to that engine. Apparently even Pratt and Whitney were working on a more powerful and efficient variant of PW4000 to get to power the 77W and 77L.
Rolls Royce and Pratt & Whitney were two of the three companies Boeing looked to when they were first building the 777. Rolls Royce did make an engine of their own, and so did Pratt & Whitney, but it was General Electric GE90 that won the competition for which engine would power the 777. As far as what happened to the other engines, I don't have any information about that.
Doesn’t the 200LR use a special version called the GE90-110B?
@@xsentinel3044 indeed they do. The GE90-110B is exclusively used in the 200LRs. They also use the GE90-115B engine.
I can feel the building taking off
Great vid Jerry. Love the track used to move them into test chamber. Like the way they move large munitions on Ships.
Thank you BJTV for the input, btw. Much appreciated! ;-)
Awesome feat of engineering.
WOW! THAT THROTTLE MAXIMUM AND ROARING OF GE90-115B AT 2:37 AND 2:38 IS MUSIC TO MY EARS AND INTERESTING 😍😍😍😍
Simply amazing! Wish I could smash that like button a thousand times for how awesome that was! Thanks
Insane amount of power. That classic scream!
Fun fact. One GE90-115B produces 55,000 horsepower that’s 9,000 more horsepower then all 3 engines of the Titanic
Love that GE 90 🛫
Dude... THAT HOWL!!! ❤️❤️❤️
I need one of these for a leaf blower in my yard 😂
Awesome 👍
Wow I absolutely love this beautiful sound 😍😍😍😍😍😍😍😍😍😍
Pure Jet Power Magic 😊👍
Fantastic video. For those that don’t know, the white cowl fitted to the front of the engine in this video is called an bell mouth. Only used in engine test cells. When the engine is fitted to the aircraft wing, a different nose cowl is fitted
Just imagine when it is the GE90 that will be tested. Eargasm!
In the aviation world, this is the " do you even lift brah?" flex
It's working! It's WORKINGGG!
Thanks!
GE 115 is lovely. Had em on the 777
I got the chillssssss... ❤❤❤❤
It’s a smooth running engine as I found working on the ramp .
One of best of best all time fevt ❤❤
The engineering of the engine itself is amazing enough. But designing and qualifying a facility to do this kind of testing is also pretty amazing. Accounting for, in all aspects of the facility design and construction, the acoustical energy, the vibrations, providing fuel and air, "quieting" the exhaust, reacting the forces involved, accounting for safe handling of engine failure cases in the test cell--say a fan blade lets go--amazing!
Voice comes out from my mind: 80 knots, checked...........
V1.....
Rotate.
Positive rate, gearup.
Such power, no matter what ever is keeping that secure it must be fighting to hold onto that power level
Makes me think of Bugatti calling up Formula 1 wind tunnels to test the aerodynamics of the Veyron and being told "we don't go up to those speeds." I can just picture GE calling up test stand manufacturers and hearing "you want to test an engine with how much thrust!?"
That’s nothing. Think about testing space shuttle SRB’s and such.
The power is astronomical, but the actual force is just over 500kN, which is not THAT much for something stationary. Structures that can hold 50 tons aren't anything particularly wild.
Noticed Max thrust reduction shortly after full spool-up. Normally, in operation, the engine should be rated for 3mins+ at Max. Looks like this was a 'raw' engine before fan blade 'balancing' as quite significant vibrations noted.
Ge90 HMU has a overspeed governor that activates separate from the fadec. It was probably activated almost immediately after max thrust was initiated and cut back fuel flow from the nozzles
Great to see this video re-uploaded. One of my fav BigJetTv videos of all time
Huge fan jerry from the land down under
Absolutely adore the 777❤
Damn, PMDG did good work with their audio. The sounds are exactly the same.
THE BIG!!!!!!! 🤩🤩
Wow, what massive power 👏👏👏
What’s cool about this about this particular sequence is that you will never actually hear it on a commercial aircraft. When setting takeoff thrust the pilots move the throttles to an intermediate thrust setting for a few moments and check both engines spool up together. This is so that they don’t end up having one engine go to a high thrust and the other one not (on a twin) as that could cause loss of lateral control.
What a sound. Bet that engine just wanted to break free and take off
Two of these engines pointed down would turn a Boeing 737 into a helicopter that could take off vertically. Heaviest 737 variant I'm aware of is a little under 200,000 pounds. Two GE90-115 engines make 230,000 pounds of thrust. One GE90-115 is worth about four F16 fighter plane engines with their afterburner on.
this is pure ASMR content for avgeeks! - thanks jerry
N779AL 727-208 I found it in flight radar but it says it’s a helicopter
Why am I just finding this now ?!?? 😊
Brayton cycle in full effect with bypass ofcourse!
Is it me, or did it sound slightly weird and not “as loud” as when plane spotting? Specially at 2:51 compared to the initial spool and slowly went fainter and fainter
I do agree that the wonderful sound that this engine makes is quite awesome, but it does not begin to compare to the beautiful music that the TF-39 from the C-5B Galaxy made. Go on, you know I'm right! 😎
@Samuel Wright Unfortunately…
CF6 sounds like a suppressed TF39
Wow
Imagine the force being exerted on the bracing that holds the engine in place!
Yeah, thats how they measure the thrust produced by the engine
2:35: 3..2..1.. *CRANK DAT SH*T UP BOIIIII.*
I love that roar
1:35この音好き
Its normal cry hearing ge90 reaching full power?
My cat was asleep in my lap until I blasted this. Oops! She must have thought it was a wild animal that got in the house. 😂
Asmr for engine geeks.I’m in love
Wales is a bit of an avgeek hub you got ge aviation ba main maintenance and there are a plethora of commercial aircraft interior manufacturers
How many decibels is that?
i would quite literally sell my soul to affix a piezo pickup to that thing
2:37 Best ❤❤❤
Notice how after the rocket powerful spoolup even with the reduction shortly after, the room looks like its shaking and the engine is about to knock everything over.
I think it's just the camera shaking
@@egg-... Wells thats from the force of the jet engine.
best sounding engine there is on the big jets, still the CFM-56 on the A320 for me is the best of all :P
The TF-39's were pure screamers on the original C-5.
RB-211...
@@Viking88Powerthe RB211-524 had a horrible and unmistakable low pitch hum during start up, could feel it through my bones. Heard it many times on the headset during pushback. Didn’t think it was ever going to accelerate 😂
@@NicholasRiviera-Dr Don't care about the start up just toga lol Great analysis either way.
2:35 I'd give my left bollock to be in the guy who pushes the throttle to the max 🥹 You can not tell me he did not feel like an excited 10-year old at that moment!
I guess it's just my ears, but it sounds to me like, after it initially spools up to max thrust, over the following 20 seconds or so it slows down ever so slightly.
👍✈️
Skip to 2:40 for the best best experience that you will never forget your entire life!
The GE90 is full speed engine at 55.000 RPM
2:31
That thing made so much wind it shook the whole room
Omg 2:37
What is that part that openened and closed at 3:02? (in the smaller window)
Interesting. The white cowl on the front of the engine is called a bell mouth. Only used inside an engine test cell such as this. When the engine is fitted to the wing of the aircraft it has a different nose cowl fitted. I can only assume that part that moved at @3:02 is unrelated to the engine operation
Amazing video. Thank you Jerry and Gilly. Is there a better sound than a GE90 spinning up?
1:15 😍🤩
Is it just me or does this not sound like an actual max-thrust test (or at least not achieved lol.) I realize it’s governing itself for some reason, but even the initial run-up doesn’t sound right.
It sounds more like what you’d expect during a takeoff roll when they wait for the engines to stabilize momentarily before going to full power.
Almost FOUR TIMES as powerful as an F-16 engine at full afterburner!
The GE90 is full speed engine maximum at 55.000 RPM
Really? Seems a little high, but which rotor are you referring to?
Je9x Jet engine more videos
The Xbox 360 when I play Minecraft:
Psycho Dad Shreds Video Games Parody
Full test not maximum
This is sex.
Average CSGO player mic:
Remember when Jerry thought the A380 had reverse thrusters on the no.1 and no.4 engines? 😅😅😅😅
LOOK HOW FAST THAT SPINNER IS ROTATING. WOULDNT WANT TO BE CAUGHT NEAR IT WHEN ITS AT FULL POWER. IVE HEARD THEIR LIKE GIANT VACUUM CLEANERS AND SUCK IN ANYTHING INCLUDING AIR!!! Yikes!!
2:40