ContinentalFan From United States of America, joined Oct 2000, 356 posts, RR: 0 Reply 4, posted (9 years 11 months 4 weeks 1 day 21 hours ago) and read 3509 times:
Dunno, seems like Pratt is falling behind the other two, just barely hanging on (relative failure of 409x on 777, having to team up w/ GE on GP7200, probably will be GE vs. RR for 7E7, PW6000 project, etc.). Almost seems they're not too serious about the commercial engine market :-(
Brons2 From United States of America, joined Sep 2001, 2981 posts, RR: 5 Reply 5, posted (9 years 11 months 4 weeks 1 day 21 hours ago) and read 3495 times:
I will agree with the previous poster, seems that PW is falling behind.
In addition to the things mentioned, the FAA has prodded PW to make improvements to the 40xx series due to a higher rate of IFSD than other engines in the same thrust class. And we all know about the well publicised initial failure of the PW6000. Time will tell if they are able to fix the 6000.
Firings, if well done, are good for employee morale.
Wilcharl From United States of America, joined Jun 2000, 1158 posts, RR: 3 Reply 6, posted (9 years 11 months 4 weeks 1 day 20 hours ago) and read 3444 times:
they all turn and burn... all are certified to the same standards all turn fuel into power and heat... the JT-8D was a true workhorse u could have a compresser stall and keep on rolling with them, The rolls royce tay had its issues... The RB-211 had its problems... I think if you look at the statistics which would be the only immpartial thing, CFM has the best numbers for on wing time... lowest IFSDs and the best dispatch relaiblity. Plus its the #1 selling engine right now... So based on that i would say CFM makes the and i hate to use the word "best"
MD-11 forever From , joined Dec 1969, posts, RR: Reply 7, posted (9 years 11 months 4 weeks 1 day 18 hours ago) and read 3394 times:
I agree with your opinion. I already ponted out in a similar thread in the Tech/Ops forum, that ther is NO "best" engine. There is just the "best" engine for a certain mission profile and operation environment, nothing more, nothing less in my opinion. But there are many parameters influencing this environment, like fleet usage, usage of take-off derates, fleet commonality (maintenance) and so on to take into consideration.
Regarding your statements concerning the CFM engine, I would like to add some comments (as it is my daily job to handle them in our shop). There are examples where CFM engines reached high amounts of on-wing time. Nevertheless, the CFM56-5C4 variant that powers the A340-300 is known to cause a lot of headache for the short on-wing time you can achieve usually. The parameters like IFSD and dispatch reliability are also widely varying between the different operators and engine models. What I just want to point out is, that also those CFM56 have a lot of technical issues that causes the maintenance and operation personnels a considerable amount of headache.
FutureFO From St. Vincent and the Grenadines, joined Oct 2001, 3120 posts, RR: 22 Reply 8, posted (9 years 11 months 4 weeks 4 hours ago) and read 3230 times:
As far as a personal favorite engine i prefer the RR RB211 that is on the L1011/757. As far a 777 Engine the RR Trent 90 is an awesome engine. And then of course there is the BR715 that is on the 717. I guess I am just a fan of the RR variants.
Futureualpilot From United States of America, joined May 2000, 2591 posts, RR: 8 Reply 9, posted (9 years 11 months 4 weeks 4 hours ago) and read 3206 times:
Its hard to say, they all make good engines, some are better suited for a certain type of aircraft than others. Maybe if you asked who made the best engine for a certain type of aircraft, this could be answered.
Personally I love how the RR engines sound on 757s.
MD11LuxuryLinr From United States of America, joined Jul 2003, 1385 posts, RR: 15 Reply 10, posted (9 years 11 months 4 weeks 4 hours ago) and read 3207 times:
Well, I agree with the people that say that there is no "best". I'm sure there are people in this forum that would like one engine more than another just because it sounds better when it's wound up for takeoff or because it produces more power than a different brand on a same aircraft. I'm one of those people
Let me ask this: Which engine manufacturer has sold the most engines overall. I'm going to guess and say Pratt... Including all those JT8Ds they slapped on the DC9s, 727s and 732s way back when..
Caution wake turbulence, you are following a heavy jet.