IAE V2500 for me, I just love the howl when it begins to spool up and then the RB211 like buzzsaw when its at high rpm. I do like the CFM56 though, but the CFM56 sounds better on the A320 than it does on the 737 family, likely due to it having a different casing and slightly bigger front fan than the Boeing.
I think the CFM56-7 on the 737 sounds disappointing compared to the CFM56-5A/5B. It sounds more like the V2500 as has similar wide chord fan but still does not sound nearly as good.
Having worked at an airport mainly serving A320s from a carrier that uses exclusive CFM engines, the odd other airline arrived with the IAEs, but I love the start up sound on the CFM, maybe because I got to stand not too far away from it when I was pushing back the jets, and then when they taxi out and you’d hear the spool up from the ramp :) some of the best times ever. And now I’m flying jets myself so I guess I ended up in the right spot.
Both are very different. The CFM56-5 has a much more refined, softer 'screaming' sound with a deep rumble while the IAE V2500-A5 has a really loud and 'dirty' buzzsaw sound and distinct high-pitched howl at takeoff power. I like both but if I had to pick I'd go with the IAE because of that unbeatable growling buzzsaw!
@AlexanderMcAllister I have flown both types of A320's and I have to say the IAE's sound so much more epic than the CFM's. The CFM's sound quite nice and all, but the IAE's are in a complete league of their own.
The IAE engine has a very abrupt appearance of the buzzsaw - you can tell pretty much the instant the fan goes supersonic. The CFM is a bit more subtle.
For the engine roar is more powerfull the CFM56 in this video the CFM 56 was on FLEX or MCT for the long runway in the IAE V2500 it was on TO/GA and the runway it was really short
@@Airbus_a320_lovers IAE there are no facts also he take off much Faster And the cmf-56 sucks on roar when it reaches TO/GA it goes quiet on the 737-600,700,800,900 airbus a318, a319, a320, a321, a340-200 and a340-300
@@michaelschumacher3701 He took off faster bc he was departing from KSNA where the runway is 5500 feet long... you really have to get out of there as quick as possible, but I totally agree. the IAE is just better
Both engines perform similarly with very minor differences. CFM is preferred by bus drivers (faster startup, less residual thrust at idle, spools up evenly. IAE delivers fuel savings and is slightly cheaper than CFM. IAE is preferred in Asia, CFM is preferred in Europe. Both are split evenly in the A320ceo market. For A320neo, CFM offers the LEAP-X, IAE's shareholder P&W offers the PW1000G series. Hazarding a guess, CFM may hold onto the lead for the next 5 years as PW is facing reliability issues on the 1000G.
The A320 is a kind of "my aircraft". It has taken me to so many places in in work and leisure trips. I love it. To me it is an icon. The engines and design are great. And for the long-range trips, I love the A340. It is a beast, a top-of-the-tree monster. I have done a couple of long-haul flights from Paris to South Africa and it is an amazing leviathan. But the A340 is "my man". All the best from Spain.
It was a full power takeoff. Notice they did a static power-up before releasing the brakes. Perhaps the runway was short. Once they hit a certain part of their climb profile they reduced to climb power. That's the sound change you heard. On a reduced thrust takeoff (which is most common) you'll either hear no change or a slight increase in power after takeoff as they set climb power.
The JT8D are a classic as well... Though I wasn't lucky enough to fly on a 727, I consider myself lucky enough to have been on an MD88 with them... The RB211s are a favorite of mine as well... The L1011 is the only tri-jet I was lucky enough to fly on....People need to take advantage of opportunities to get on some of the older planes- the MD80 series, the 757's, DC9's -while you still can- aviation is constantly evolving and it won't be long before those will be just memories as well....
Heres the problem with this video. CFM engines go supersonic (chainsaw noise) with much less overall thrust. The IAE is much quieter in that regard when using the same thrust. From the actual takeoff, it is clear that with the CFM it is a Flex TO (or derated for my Boeing guys) but with the IAE it is using a TOGA. On a flex takeoff with the IAE engines it usually won't go supersonic and it will sound more like it did right before on the spool up. Since the actual amount of thrust used is different, I can't take a side in this video. They are both great engines but when flying the a320 series, hearing the chainsaw with the IAE is rare.
GamerMax01 both engines go supersonic a lot sooner than you may think. It starts with a deep rumble much lower in fan rpm and as it increases it begins the actual buzz which gets more and more intense. On any normal takeoff both engines are going supersonic.
@the747videoer the type of engien don't affect the aircraft time of rotating or climbing. Infact the nose wind when it's fast, it will help the airspeed to increase and pilot will start rotating in a short time of accelerating in the runway.
Hey Guys, The best sound is the less noisy. If CFM already disturbs a lot on take-offs, the IAE disturbs three times more. I have experienced the IAE and it made my flight to be the worst. Even a 737-200 is much quieter inside than an A320 with IAE engines. I expected much less noise from the IAE compared to the CFM, but I got deeply wrong about my thought.
I love Rolls-Royce RB-211 engines on a US Airways Boeing 757-200, and I love Pratt & Whitney PW2000 engines on a Delta Air Lines Boeing 757-200 after takeoff with Alyssa May Wilson in Mesa, Arizona!
IAE: fan diameter: 1.587 compress ratio: 35.8:1 thrust: 27,000 (lbs) CFM: fan diameter: 1.735 compress ratio: 32.6:1 thrust: 27,000 (lbs) Both engines have the same thrust .But IAE has a smaller fan diameter than the CFM and the thrust at lower altitudes is produced mainly by the fan. So CFM performs better at lower altitudes. Now IAE has a higher compression ratio than the CFM so at higher altitudes the air is thiner and the thrust is produced mainly from the compressor IAE performs better.
no, it's just a thrust reduction at thrust reduction altitude, from T/O thrust (or eventually calculated flex thrust) to climb thrust. It occurs on every take-off at usually 1500 ft AGL
Something about anything RR powered or in collaboration with RR- IAE V2500, BR700 series, AE-3007, and of course the RB211 (to name a few).... the sound is music to my ears...
It would be a better comparison if both examples were taking off from SNA. The CFM was definitely reduced thrust compared to a max thrust takeoff from SNA. I do like the sound of the CFMs better, but i like the clean cowl look of the IAE.
CFM. If you let the video fully load and switch back and forth between the two engines, you can see that the CFM sounds throatier and more powerful. IAE is all right, but just doesn't keep up with CFM.
V2500 for me all the way. You can hear the RR "blood" in the IAE on spool up and with the classic buzzsaw sound... Love it when the V2500 hits reduction altitude and the pilot notches down into the Climb detent... That IAE powered A320 didn't waste any time getting off the ground either.... right around :20 from brake release to Vr
The CFM sounds way better to me, but I’m a sucker for narrow chord fans, none of that whiny wide chord stuff. What would make this an even fairer comparison would be to have both versions of the CFM56-5, the 5A and the 5B as they sound quite different with the 5A having a much fuller buzzing sound. The V2500 sounds fine, but it just sounds smaller, weaker, and overworked.
@Sterlingjob Thank you for the correction but due to the limitation of caracters per comment i was unable to present the facts with more detail. When i said "cmpressor" i meant the High Pressure turbine, not the compressor itself. But the whole meaning and the main idea is correct isn't it? cause im neither a pilot nor an engineer Thanks again for clearing that out.
i like both but if i had to choose 1 it would be the IAE V2500s. i have seen lots of other takeoff videos filmed from inside a320s and a321s as well as being in a few and the IAEs sound really good.
@minipilot22 Incorrect, thrust comes from the fan, around 70-80%, the remaining thrust is from the turbine if any. This doesnt change at altitude, im guessing the V25 is more efficient because it has a higher compression ratio. Here is a question for you! Why does the V2500 take longer to start than a CFM56??
