The Most ADVANCED Aircraft Engine Ever Made Has A GIANT Problem

US Testing World’s Most Advanced Aircraft Engines Ever Made, the CFM RISE, a revolutionary aircraft engine that promises to push the limits of aerospace travel moving forward. Let's explore exactly what happens when American and European expertise combine to evolve an industry beyond what we once thought possible.

The development of aircraft engines traces back to the Wright Brothers' pioneering flights in the early 1900s, using inline piston engines that evolved into radial designs for increased reliability and power. The 1940s saw the advent of jet engines, revolutionizing aviation with higher speeds and efficiencies, laying the groundwork for modern propulsion systems like turbojets and turbofans. Over time, jet engines grew larger to generate more thrust, despite the challenge of increased weight and drag.
In the 1980s, open rotor engines, known as propfans, were explored as a potential advancement. General Electric and Safran worked on innovative designs like the GE36, aiming to enhance efficiency and reduce noise. However, the project faced challenges due to excessive noise levels and shifting priorities due to lower oil prices, leading to a loss in interest.
Recently, renewed focus on fuel efficiency, Safran's advancements in noise reduction and improvements in fan blade and general open rotor engine technology sparked a revival of interest in the designs and has culminated in the CFM Rise engine, boasting a higher bypass ratio and significant fuel efficiency gains.

The CFM Rise engine represents a huge leap in engine design, addressing past challenges while embracing new technologies to meet the demands of a more efficient aviation future. Ground and flight tests planned for the near future are set to demonstrate the engine's capabilities and pave the way for incredible evolution in the aviation industry.

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#aviation
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#beyondfacts

[garyhughes]

The length of this video could have been cut considerably and still give some valuable information.

[f.d.]

Yup. That's why the Rpublic "Thunderscreech" (same priciple) was shelved.

[NikeaTiber]

Early jet engines had *very* short maintenance intervals.
The ME-262's engine overhaul interval was less than 100 hours as I recall.

[LizBrowne-doli]

At 12.30 you mention hydrogen fuel. Everyone wants hydrogen fuel. Why don't they use ammonia instead? Ammonia is much easier to liquefy and it does not make metals brittle and yes, I know it is highly toxic. Why don't they have a large duct around those blades to reduce noise. Why don't they have variable pitch in bypass engines instead of going back to the 1950s

[pdmaloy]

While the Narration is pretty good the supporting archival video synchronization is often very misleading.

[gandalfgreyhame]

The only way to reduce noise with any sort of fan is to reduce the rotation speed of the fan blades. The faster they rotate, the louder. So, if you want a quiet turboprop, you have to have a lower thrust turboprop.

[jonscot]

Bird Strike Blender on a stick - I mean aircraft.

[openbabel]

These are like the cutting edge engines already in use on the airbus.The TP400 engine for the Airbus A400M.

[philipadams]

Forget the first 4' 30" unless you want a potted history of aircraft engines since the Wright brothers.

[NikeaTiber]

Variable pitch propellers have been common since the late 1930s.

[dougball]

So you call the aviation industry ignoring this engine concept? No, it just takes awhile for all the issues to be resolved. In the case of the open rotor, it's noise. Working on the concept since the 80s is hardly ignoring it.

[peterworsley]

Why do we get a picture of a Russian aircraft when talking about the ME262?

[peterworsley]

The Wrights did not build the engine themselves - it was built by Charlie Taylor

[MySkyranger]

This engine has no chance against the New ROLLS ROYCE Ultra fan coming in the near future.

[trevorgale]

What a load of BS. The rotary aircraft engine was in common use in WW1, which was some years before the 1930's. Hydrogen is not a viable fuel source for general automotive use, trials in the US are being discontinued. As for aircraft, the same issues would exist. However, I would love to watch safely from the ground the maiden flight of the Boeing Hindenburg. I'm sure there is a used car lot somewhere looking for staff, I think you should apply.

[CrotalusHH]

They glossed over the blade containment and noise problems. Carrying hydrogen in an aircraft also involves heavy high pressure gas bottles. Essentially a big bomb.

[superadio]

Unducted turbofans was tried out back in the early 80's. No good came out of it. Geared turbofan is way better. Increase diameter of the fan. With less RPM. Turbine rotate with higher RPM

[kennethavesato]

Liquid hydrogen is lighter than jet fuel, good concept, I like 😊

[centariprime]

H2O is considered a "greenhouse gas". I would like to hear this running at full power. I suspect it's inherently noisy.

[zippydooda]

They’re wasting resources on this. Passengers are past riding on turboprops. Blade separation will be disastrous.