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B757 Engines: LCC Differences PW And RR  
User currently offlineTangowhisky From United States of America, joined Jun 2006, 910 posts, RR: 7
Posted (8 years 4 weeks 1 day 13 hours ago) and read 4997 times:

The PW 2000 and RB21-535 series engines were both offered on the B757. in terms of reliability, maintenance costs, and sfc, does anyone know where each engines stands? and does one have a better resale value over the other for an older 757?


Only the paranoid survive
10 replies: All unread, jump to last
 
User currently offlineWorldTraveler From , joined Dec 1969, posts, RR:
Reply 1, posted (8 years 4 weeks 1 day 13 hours ago) and read 4997 times:

What do LCCs have to do with 757 engine types? Perhaps you can clarify your title.

User currently offlineTangowhisky From United States of America, joined Jun 2006, 910 posts, RR: 7
Reply 2, posted (8 years 4 weeks 1 day 13 hours ago) and read 4982 times:

Quoting WorldTraveler (Reply 1):

WorldTraveler, I mean Life-Cyle-Cost. Never striked my mind that LCC also stands for low cost carriers (who happen to care dearly about life cycle costs).



Only the paranoid survive
User currently offlineTepidHalibut From Iceland, joined Dec 2004, 209 posts, RR: 6
Reply 3, posted (8 years 4 weeks 1 day 9 hours ago) and read 4885 times:

Quoting Tangowhisky (Thread starter):
terms of reliability, maintenance costs, and sfc, does anyone know where each engines stands?

I believe that PW2037 has a better "Brand New" SFC, but that advantage is quickly lost through deterioration.
In terms of reliability, mx costs and on-wing life, I believe that the RB211-535E4 is the hands-down winner.

As an aside, I've often wondered why the Tu204 hasn't picked up more western operators. A comparable aircraft to the B757, but at half the price.


User currently offlineKC135TopBoom From United States of America, joined Jan 2005, 12134 posts, RR: 51
Reply 4, posted (8 years 4 weeks 1 day 8 hours ago) and read 4833 times:

The RR RB-211 series offered on the B-757s do have a much lower maintenance cost and can stay on the wing much longer than the PW engines can. The RRs also have a higher thrust rating.

The PW 2037 and 2040 series offered on the B-757 cost less and have a lower SFC than the RRs. But they also offer less thrust and higher maintenance costs.

Now LCCs that have operated these engines on B-757 models include ATA (RR RB-211s on both the -200 and -300), Song (PW 2040 on the -200), and National (RR RB-211s on the -200). There may be others, but those are the first LCC operators of B-757 models that crossed my mind.

I might add that UPS operates B-757-200PFs with both engines. IIRC the first 20 or so B-757s they bought are equipped with PW-2042s, and the last 20-25 airplanes they bought came with RR RB-211-535E2s.


User currently offlinePM From Germany, joined Feb 2005, 6882 posts, RR: 63
Reply 5, posted (8 years 4 weeks 1 day 6 hours ago) and read 4780 times:

1049 757s of all models were built. 617 (59%) had RR and 432 (41%) had PW. RR therefore outsold PW 3:2.

Of the 56 original customers, 4 ordered both engines, 40 chose RR and 12 chose PW.

Each engine has its advantages but it seems that the market preferred RR.


User currently offlineKC135TopBoom From United States of America, joined Jan 2005, 12134 posts, RR: 51
Reply 6, posted (8 years 4 weeks 1 day 5 hours ago) and read 4726 times:

Quoting PM (Reply 5):
1049 757s of all models were built. 617 (59%) had RR and 432 (41%) had PW. RR therefore outsold PW 3:2.

Higher thrust and lower maintenance costs are a big seller.


User currently offlineTangowhisky From United States of America, joined Jun 2006, 910 posts, RR: 7
Reply 7, posted (8 years 4 weeks 1 day 4 hours ago) and read 4670 times:

Does the PW 2000 series have FADEC? I know that the RB-211-535 does not have a FADEC, but has an EEC and a hydromechanical FCU. It is amazing that even without the FADEC, the RB211-535 Mx costs are lower. Where and what are the high Mx cost items of the PW2000?


Only the paranoid survive
User currently offlineKL808 From United States of America, joined May 1999, 1584 posts, RR: 2
Reply 8, posted (8 years 4 weeks 1 day 4 hours ago) and read 4647 times:

Why is it that we don't see a GE powered B752?

If there where plans which engine would it have been? CF6?

Drew



AMS-LAX-MNL
User currently offlineAlitalia744 From United States of America, joined Mar 2000, 4747 posts, RR: 45
Reply 9, posted (8 years 4 weeks 1 day 3 hours ago) and read 4624 times:

Quoting KL808 (Reply 8):
Why is it that we don't see a GE powered B752?

If there where plans which engine would it have been? CF6?

Drew

GE was originally developing an Engine for the 757, I believe AA and AZ were on board at the time.



Some see lines, others see between the lines.
User currently offlinePM From Germany, joined Feb 2005, 6882 posts, RR: 63
Reply 10, posted (8 years 4 weeks 1 day 3 hours ago) and read 4624 times:

Quoting Alitalia744 (Reply 9):
GE was originally developing an Engine for the 757, I believe AA and AZ were on board at the time.

It was even ordered - I believe by one of the Hawaiian airlines? But I think I read somewhere that it wasn't really optimised for the 757 and neither Boeing nor GE could see much future in it so it was dropped.


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