Roll royce aero engines Videos

GEnx  engines   powering  the  787  Dreamliner   experience  many problems.. Even   the FAA issued a warning to  Airliners who use  it  to  avoid   thunder  clouds . Rolls Trent 1000  seems to be more reliable..Trent 900 was a serious problem thats correct but it has been fixed.

+Donald Schneider because it's not true

+ramairgto72 He actually said "Homogeneous"  but yeah that is how brits would say it.

+MrShobar and when 4 base Workshops did dyno testing on the Meteor it was the same

+MrShobar Having witnessed a dyno-test of a Merlin (no prop attached), I can vouch for the awesomeness of a Merlin at full-chat. Even through 6" of concrete & a quad glazed viewing window, the noise was chest shaking...

+Jack Sprat You're easily impressed. It's probably the noise from the propeller that you're feeling.

+Mr. Ken I guess it was distroyed during the last days of the war and perhaps the allies took everything what was left as classified files. Ì can assure you BMW and daimler-benz knew how to build aircraft engines......

+Mr. Ken Good question.

Hi -- thanks for asking about the sound.  This film, like several others, was produced without sound.  Then there are a few that are archival films that were stored in the National Archives and lost their sound tracks during a fire at the Archives. The sound elements were stored in a different part of the building than the pictures which survived.  I'm just posting the raw films that I've discovered and not the edited pieces I've created over the years.  May do that later on.  Again, thanks for asking and viewing.

+ian roberts That's a great little snippet of history on an amazing company. Thanks for the info, cheers from the US!

I think each blade has its own resonance frequency to both balance and compliment each other, and avoid detrimental types of vibration such as harmonic coupling. Just a guess based on what I've learnt about this kind of thing.

+Jefford717 You are talking about an engine basically that still only exists on paper. It's normal for turbofan engine technology to reduce about 0.5 to 1% SFC per year. So yeah. On the one hand The GE9x may be more efficient when it enters service. The "problem" is that the trent XWB will be 4 years in service, and with some hundred units working and with Performace Improvement Packages they may take back some of the disadvantages. On the other hand... engines in different planes is not an apples to apples comparison . The A350 has a lighter frame (more CFRP in fuselage, besides just wings on 777X ) and might have an advantage if you compare similarly sized models A350-1000 vs 777-8X and even this is simplistic. Airplane economics is really complicated and also depends on payload, routes etc... At the end of the day both airplanes and engine models will be cutting edge technology with no clear winner. Some plane will always suit one airline better than the same on other airline

+Stephen Lediard                                    True for now, but soon Ethiopian Airlines who operate 6 787`s with GEnx engines, will take delivery of a second batch of 6 787`s with Rolls Royce Trent 1000. It will be interesting to hear from them on how the two types compare, not just on reliability & economy, but also if the pilots convey any differences in response between them. The same will be true of Emirates & their huge order of 50 Rolls powered A380`s, it'll be good to get feedback from them too.

+Jefford717 Only Boeing have the figures - there are no airlines running both engine types on the 787.

+Jefford717 Efficiency isn`t always the be-all, particularly to airlines trying to run a profitable business. True they want efficiency, but they also look at the bigger picture. They`ll consider reliability, perhaps investigate previous designs ( RB211 ) that have led up to the latest product, look into who provides the best service at the best price, & who just might be the best to deal with overall. It`s not just a question which is the best engine. GE & Rolls are so evenly matched in the larger engine market, to suggest a 1-2% fuel burn makes the GP7200 engine better than the Trent is nonsense. Your very first sentence is sweeping, since they haven`t even come to market yet, lets see how these new models perform in service. Regarding 3 spool vs 2 spool Stephen L below has detailed the slower degradation in performance which is well known. I believe they perform better at high altitude airports on take-off.... for whatever reason. You obviously don`t like Rolls for some reason, but I`d suggest that the thousands of engines that run safely over the landmass of the USA everyday on American run aircraft would indicate they have something in their favour.

+Jefford717Just 2 different solutions for the same problem. The Trents may be a little less efficient on the 787 and A380 but they were the most popular choice on the original 777 versions and are by far the best selling engines on the A330.

Your argument is solely based on your personal opinion rather than facts...of course GE will also introduced new technology that will further make thier products more efficient.In regards to tri spool vs two spool efficiency, ever since Rolls Royce introduced the tri spool turbofan in the Lockheed L-1011 in the 1970s they haven't really proven that a tri spool architecture is more efficient than a two spool.Emirates' decision on choosing the more efficient (about 2% better) two spool EA GP 7200 engine for there A380 over Trent 900 and GE's majority (about 65%) share in the 787 engine over Trent 1000 is a proof that Two spool architecture is still more efficient than a three spool design.

The GE9x I assure you will not easily beat the XWB-97 in efficiency. By the time the GE9x comes to market RR will have upgraded the XWB with their new ALPS technologies. One of the advantages of three shafts is that the chassis is shorter and evidently stiffer - enabling less flex and better lifetime fuel burn. Or, slower deteriation compared to two shafts. But, of course both manufactures will have products right on the cutting edge.

This is exactly how I feel about supercars, huge yachts, strange and unique mansions, fancy private jets etc... I will never afford any of that stuff, wouldn't buy any of it even if I could, but I'm so glad there are people out there that do build and buy that kind of stuff just so I can be in awe of the awesomeness.

+raj Go to school