NDSchu777 From United States of America, joined Oct 2001, 419 posts, RR: 3
Reply 1, posted (10 years 8 months 2 weeks 5 days 15 hours ago) and read 13334 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!
Phollingsworth From United Kingdom, joined Mar 2004, 825 posts, RR: 5
Reply 2, posted (10 years 8 months 2 weeks 5 days 14 hours ago) and read 13299 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.