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GE/PW Vs Rolls Royce - Aircraft Engines  
User currently offlineDIJKKIJK From France, joined Jul 2003, 1912 posts, RR: 4
Posted (12 years 1 month 3 weeks 5 days 9 hours ago) and read 15959 times:

OK, a different type of transtlantic rivalry here.

RR built the first ever turboprop engine (RR DART), powered the first ever supersonic airliner (Concorde - RR Olympus) and has built a superb range of modern jet engines (RB211 series and RR Trent).

RR ROCKS  Big thumbs up

Never argue with idiots. They will bring you down to their level, and beat you with experience.
3 replies: All unread, jump to last
User currently offlineNDSchu777 From United States of America, joined Oct 2001, 419 posts, RR: 3
Reply 1, posted (12 years 1 month 3 weeks 5 days 8 hours ago) and read 15883 times:

GE has a wide range of engines for both civil and military aircraft. As an example we'll look at the GE90, an amazing work of engineering. The largest jet engine in the world, the most powerful (the GE90-115B rated at more than 115,000 lbs. of thrust!), has the largest compression ratio, lightweight composite fan blades. And the technologies derived off of this engine will make the new GENX a great successor to the ever-popular CF6 line. Not to mention GE along with SNECMA have created the most successful commercial engine ever, the CFM56 powering 737's and A320's around the world. And not to mention the CF34 which is dominating the ever-expanding regional jet market. All of these innovative engines have made GE the largest manufacturer of jet engines in the world!

GE ROCKS Big thumbs up

User currently offlinePhollingsworth From United Kingdom, joined Mar 2004, 825 posts, RR: 4
Reply 2, posted (12 years 1 month 3 weeks 5 days 7 hours ago) and read 15848 times:

RR has built a good family of engines, especially after killing themselves with the original RB-211. I have to say I got a bad taste for Pratt after dealing with the results of several "events" on the PW2000 series. I am more familiar with GE than anything else though.

The interesting thing about the CF6 series and now the CF34 series is that the most recent versions are completely different from the original versions. The CF6-50 has a modified core and a new low pressure system when compared to the CF6-6. Going from the CF6-50 to the -80 GE then replaced the core. This means that the CF6-80 shares almost nothing other than the name with the CF6-6. The most recent models of CF34 have done the same, going to a CFM56 based core. In my biased opinion GE does a great, maybe the best, job of "sweeping water uphill," hence the high OPRs, 42:1 for the GE90, and 43.5:1 for the GP7000, which they share with Pratt, GE does the core/high pressure section.

User currently offlineConcordeboy From , joined Dec 1969, posts, RR:
Reply 3, posted (12 years 1 month 3 weeks 5 days 7 hours ago) and read 15813 times:

powered the first ever supersonic airliner (Concorde - RR Olympus)

Hmm, not so fast there Bullet...

...RR and Snecma powered the second ever supersonic airliner--- and Snecma later chose to joint-venture with GE instead of RR  Big grin

And then there's the GE90... which not only slapped the Trent800 out of the number 1 spot in 777 sales, but also exceeded it far and beyond in thrust production  Big grin

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