3D Printing the Innovative CFM RISE Demonstrator
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- Опубликовано: 16 июл 2022
- The innovative open fan design of the CFM RISE* demonstrator now has a 3D printed model, thanks to engineer and 3D printing enthusiast Alex Hills.
See what we are doing today for the benefit of us all tomorrow:
blog.geaviation.com/farnborou...
*CFM is a 50/50 joint business between Safran Aircraft Engines and GE. 
Наука
It is good to see that GE did not give up on their UDF work that they did back in the 1980s... and finally it has a chance to see commercial implementation....
One change I see is they did away with the counter rotating prop-fan and gear box, and instead have blades that can change the direction of the prop fan wash…
glad im not the only one who thought of the UDF when i saw this
Great work Alex!
Look forward to seeing the testing.
where to download STL files?
+1
The spiritual successor to the mighty GE UDF
SUPER!!!!
Can you print a 1/144 scale engine????!!!!
Great Work, Alex Hills!!!
Wow !
Cant wait until its on commercail aircraft. We have not made any major technological advancements on jet engine design in more than 50 years. We make them more efficient and faster, but the platforms are the same since 1st gen engine designs. Looking forward to seeing innovation in aerospace powerplant design...
FANtastic! (LOL) Strange how the blades seem to be set at the wrong angle @ 0:05 and are rotating the wrong way. A front shot later shows the same rotation and looks okay.
Regarding fuel saving, what was wrong with doing that years ago, even though fuel was cheap? 20% saving was still worth having whenever.
I would love to fly on an MD80X with CFM RISE engines.
What the difference between this and any other turboprop
Um... don't these need Kevlar cowlings to make sure the blades don't break off and penetrate the aircraft structure?
Are they "gearing down" these engines to keep the blades from creating the noise of the previous iteration of this idea?
Yes I believe they is a reduction gear employed.
Where can I find STL files for 3D printing ?
So the whole plot was, instead of sending cease and desist letter and copyright infringement charge. They decided to recruit this guy? lol
Pretty hilarious video tbh 😂. Not something I would be bragging about if I were GE. I think he was already a GE engineer? But the fact GE had to rely on some random guy to do a rush prototype model for them speaks volumes to the organization LOL wow. I am rooting for the Rise tho!!! Turned down an offer from Pratt & Whitney years ago due to a similarly sketchy feeling from their managers...maybe this is par for the course in the engine industry.
Dear GE ,boom supersonic are looking for a new engine.what about taking the core of a leap and putting two carbon fiber fans in the front steam.?that's what I would go for .✈️
Sean Waste of your Time !!! No One is Offering Engine to Boom Aerospace they already DOOMed and reason in Boeing, they will not allow to emerge competitor to them. Remember what happen to aerion supersonic, and Zunum Aerospace they were killed
So we’re going back to prop fans? OK with it.
Question: In open fan architecture, how do the fan blades remain protected from outside elements, object hits etc ?
Same way propellers do.
@@ToolofSociety - so why do we even need a Casing for Jet liner engines today ?
@@artus198 The casing is a result of how high bypass turbofans have evolved. The compressor blades used in a modern high bypass turbofan spin at a much faster RPM than the RISE design. The blades of the compressor are also much slimmer and made of different materials than the RISE. The casing is more of a duct really with enough reinforcement to handle some blades being chucked off the compressor at higher RPM.
If it helps you any think of the RISE as a higher speed turboprop design..I know it overly simplifies what is going on but it's the same protection. I for one will be looking forward to actually seeing one in action before I made judgements.
@@ToolofSociety - Can the Rise Engine reach 0.85 MACH ?
@@artus198 probably not. But it’s a mood point anyway, since both Airbus and Boeing NB cruise at m0.8 or less. Typically more like .76-.78
Is the rise engine safe as I am worried if a no gear landing is performed, will the props shatter into the pieces and kill people
Check the mounting location
🤣🤣🤣… GE needs to do a Hazop study and consider such scenario
the blades are very light and the fan speed is very low
I think you're watching too much of final destination..
Yeah on current turbofan engines, the cowling has to be designed to contain a blade off at full throttle.
Imagine what damage such a blade would be able to do in a blade-off situation in the air
What will be the rpm of this engine
GE Stands for Goat Engines 🐐
Thought nasa tried these back in the 80 and decided they were too noisy?
GE and CFM had one In the 80s and same as NASA decided it was pointless. To loud in the cabin
@@yoog So whats the scoop with CFM repeating history?
They have static fan blades in the back that can change angles to help solve that issue.___.
@@mmontalvan1848 Stators?
@@mmontalvan1848 thay would be stators not fan blades. Or even fan exit gide vains. But I don't see it doing much for noise abatement.
From a safety standpoint, I have serious questions about this engine and it's unducted fan.
First, General Aviation understands the dangers of working around propeller aircraft, but now commercial ground personnel are going to be working around congested fast paced airport environments and all it takes is one incident of someone rushing and losing their situational awareness because of airline schedule pressures to cause a major catastrophe.
Second, ducted fan engines have a safety feature in that the fan duct is rated to contain any fan blades failures so if a fan were to come apart in flight, odds are nothing would penetrate the pressure vessel (fuselage). Not so with this new design.
Call me crazy, but I am not a "fan" of this new design.
Didn't they already design and build these and give up on them because they were too loud
You will compensate airlines and passengers billions of dollars but brilliant idea 😅
second
gay to comment? I think so.
first
gay to comment? Yes, you are. Indeed.
Much talking, but no real simulations etc Stop Hyping show some resoults.
But the engine is ugly
As you are?
Engine is engine.
It is your illusion.
What is new here ?
GE and PW already made and tested such Engines in 1990s.
Search Propfan.
Failed due to High Noise and Blade tip losses.
I highly suggest,
you look into Geared or Semi geared fan,
and if possible the main fan be covered by Smaller ducts,
With stator vanes.
There have been a LOT of advancements in computational fluid dynamics and other computer modeling methods to reduce blade tip losses through complex blade geometries while also cutting down noise
you know that is tested in 90s right? and what year now is? yes 2022
1990 and 2022 are different years, Fool
Old is always GOLD GE's Engineering Team in 1990 was much Skilled than today
It's a real shame, it would have been incredible and interesting to travel on a plane with engines of this type, hopefully one day planes with this type of engine can be manufactured and enjoy traveling on them 🤔😔🤩😍🌎✈️🛫🛬🗺️🌐 🏝️🧳💺.