Amazing CFM Rise Engine Explained: This Is How It Works

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CFM Rise Engine Explained: This Is How It Works

Aircraft engines have come a long way and the latest and greatest addition to this legacy is the CFM RISE engine. The development of aviation engines is a tale of ongoing invention and progress, starting with the early piston engines that made the sound of an elephant herd, taking a flight to today's whisper-quiet turbofans. And now, enter the CFM RISE engine. This engine represents the next step in the never-ending quest to make flight safer, more effective, and more environmentally friendly.

The CFM RISE technology program will soon demonstrate the open fan in a real-world environment for the first time. The objective of the program is to show the open fan design's viability for usage in next, next-generation single-aisle aircraft. The open fan design has been studied and developed for more than 40 years, and it is now ready to have a significant impact on the aviation sector.

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Tags: aviation, fighter jet, stealth, stealth bomber, pilot, pilot stories, fighter pilot, raider, carrier, aircraft carrier, plane, ace, air force, wings, jet, air travel, usaf, united states air force, helicopter, helicopters, planes, Airbus, Boeing, MiG, Chengdu, airplane crashes, Harrier, Harrier jet, aircraft, f-35, f-21, f-14, tomcat, naval aviation, military, airplanes, military aviation, fighter pilots, lockheed martin, top gun

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you didn't explain anything, just a bunch of word cocktails

ericvelasquez

The new open fan technology looks like a good old propeller with a few more blades. How nice.

bobesposito

So what happens if there is a blade fail, what contains a blade snapping off and flying into the aircraft structure?

Dan_druft

I love the open blades engine. I can see the it actually spinning.

mtang

Turboprop and turbofan engines are both types of turbine engines, but they have different designs and are used for different purposes.

Turboprop Engines: In a turboprop engine, most of the jet thrust (the force that propels the aircraft) is used to drive a propeller. The jet exhaust itself provides only a small portion of the total thrust. Turboprop engines are very efficient at lower speeds and lower altitudes, which makes them ideal for smaller, regional aircraft and certain types of military aircraft. They are also used in some types of helicopters.

Turbofan Engines: In a turbofan engine, the jet thrust is split between driving a large fan at the front of the engine and the jet exhaust. The large fan creates a "bypass" airflow that goes around the outside of the main part of the engine, rather than through it. This bypass air provides additional thrust and also helps to reduce noise. Turbofan engines are more efficient at higher speeds and altitudes, which makes them the engine of choice for most commercial jet aircraft.

The main difference between the two is how they generate thrust: turboprop engines generate thrust primarily through a propeller, while turbofan engines generate thrust through a combination of a large fan and jet exhaust.

JoaquimJorge

So what is the difference from the contra-rotation propellers from Kuznetsov NK-12 engine on Tu-95 and An-22. Basicly, it just a morden NK-12 engine, pack with more blade and noise reduction design which are similar when compare early single propeller turboprop engine with the modern one. An-70 engine, CFM version.

rau

I'm no expert but can't see this is just a turbo prop with more blades so must be slower than a jet engine

philrickerby

What happens if that fan fails and a fan blade impacts the cabin ! Is it safe ?

eamonhannon

In response to comments above, likely the confusion of being shown video of different engines ; This is being called a turbofan not a turbo prop and the while the demonstrator engines had counter rotating blades the RISE design plan for the final engine has back blades that are static which can be seen in the video intro picture.

joeljong

Open rotor, unducted fan etc isn’t, in fact, a fancier turboprop?

bavareze

A traditional engine has a case designed to contain blade failure. I personally wouldn't be booking a seat in the fuselage opposite one of these engines

Banditmanuk