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What Engines Do The DL 757-200's Use?  
User currently offlineUsair320 From United States of America, joined Nov 2003, 991 posts, RR: 2
Posted (8 years 3 weeks 6 days 7 hours ago) and read 4253 times:

I am pretty sure that they are PW's but still not quite sure. I tried www.Delta.com but they dont give any information about there fleet unlike www.AA.com or www.continental.com. any reples greatly appriciated.

Gage

21 replies: All unread, jump to last
 
User currently offlineDl757md From United States of America, joined May 2004, 1562 posts, RR: 16
Reply 1, posted (8 years 3 weeks 6 days 6 hours ago) and read 4250 times:

We use the PW 2037.

DL757Md



757 Most beautiful airliner in the sky!
User currently offlineHAWK21M From India, joined Jan 2001, 31679 posts, RR: 56
Reply 2, posted (8 years 3 weeks 6 days 5 hours ago) and read 4239 times:


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That would be 40,100 lbs of Thrust. Right.
regds
MEL



Think of the brighter side!
User currently offlineDl757md From United States of America, joined May 2004, 1562 posts, RR: 16
Reply 3, posted (8 years 3 weeks 6 days 3 hours ago) and read 4236 times:

Quoting HAWK21M (Reply 2):
That would be 40,100 lbs of Thrust. Right.

Nope. The PW2037 has 37,530 lbs of thrust. The PW2040 has 40,100 lbs of thrust.

DL757Md



757 Most beautiful airliner in the sky!
User currently offlineHAWK21M From India, joined Jan 2001, 31679 posts, RR: 56
Reply 4, posted (8 years 3 weeks 5 days 22 hours ago) and read 4213 times:

Quoting Dl757md (Reply 3):
Nope. The PW2037 has 37,530 lbs of thrust. The PW2040 has 40,100 lbs of thrust.

Ok Thanks.
How do they rate with the RB211-535Cs & E4s.Maintenance wise.
regds
MEL



Think of the brighter side!
User currently offlineUsair320 From United States of America, joined Nov 2003, 991 posts, RR: 2
Reply 5, posted (8 years 3 weeks 5 days 22 hours ago) and read 4206 times:

Quoting Dl757md (Reply 3):
PW2037

Yea I figured they used the 37,350 version. I believe AA uses the PW2040. I should check there website. Thanks for the replys.
Gage


User currently offlineDl757md From United States of America, joined May 2004, 1562 posts, RR: 16
Reply 6, posted (8 years 3 weeks 5 days 20 hours ago) and read 4199 times:

Quoting HAWK21M (Reply 4):
How do they rate with the RB211-535Cs & E4s.Maintenance wise.

I don't have any experience with the RB211s so I can't comment firsthand. I've heard some components on the RR are harder to get to but there are probably some that are more difficult on the PW. The core engine on the RR has been more reliable AFAIK. The PW has had 14th stage stator cracking problems which PW fixed but then the 10th and 11th stage stators began cracking. It was a real problem for us as. At one point in '02 or '03 we had 16 planes grounded because we didn't have serviceable motors for them. We got really proficient at 757 engine changes because we were playing musical engines all the time. PW has since remedied the problem and no others have surfaced to date. It remains to be seen however, if the 2037 will reach the level of reliability of the RB211.

DL757Md



757 Most beautiful airliner in the sky!
User currently offlineHAWK21M From India, joined Jan 2001, 31679 posts, RR: 56
Reply 7, posted (8 years 3 weeks 5 days 18 hours ago) and read 4179 times:

Quoting Dl757md (Reply 6):

Is it true that the P&W 2037 is Twin Spool,Unlike the RB211-535 which is Triple Spool.So would the Airflow Requirements for Ground start Volumewise be less on the Former.
regds
MEL



Think of the brighter side!
User currently offlineDl757md From United States of America, joined May 2004, 1562 posts, RR: 16
Reply 8, posted (8 years 3 weeks 5 days 17 hours ago) and read 4175 times:

Quoting HAWK21M (Reply 7):
Is it true that the P&W 2037 is Twin Spool

Yes it is.

Quoting HAWK21M (Reply 7):
Unlike the RB211-535 which is Triple Spool.So would the Airflow Requirements for Ground start Volumewise be less on the Former.

I have no idea.

DL757Md



757 Most beautiful airliner in the sky!
User currently offlineEssentialPowr From United States of America, joined Sep 2000, 1820 posts, RR: 2
Reply 9, posted (8 years 3 weeks 5 days 17 hours ago) and read 4169 times:

Somebody pls confirm this, but I think the Rolls is ETOPs capable and the Pratt is not (unless a retrofit is done)...

User currently offlineUsair320 From United States of America, joined Nov 2003, 991 posts, RR: 2
Reply 10, posted (8 years 3 weeks 5 days 16 hours ago) and read 4165 times:

Quoting EssentialPowr (Reply 9):
Somebody pls confirm this, but I think the Rolls is ETOPs capable and the Pratt is not (unless a retrofit is done)...

Indeed the RR's are ETOPS capable which is what CO has(correct me if im wrong) Dont know about the PW's not being ETOPS though.


User currently offlineMarkC From United States of America, joined Apr 2006, 259 posts, RR: 0
Reply 11, posted (8 years 3 weeks 5 days 8 hours ago) and read 4123 times:

The 2000's are ETOPs capable. Some of the very early build parts are not though. Its easy enough to convert most during an overhaul.

User currently offlineLucky42 From , joined Dec 1969, posts, RR:
Reply 12, posted (8 years 3 weeks 5 days 7 hours ago) and read 4115 times:

Quoting Usair320 (Reply 5):
Yea I figured they used the 37,350 version. I believe AA uses the PW2040. I should check there website. Thanks for the replys.
Gage

AA 757 are Rolls Powered


User currently offline113312 From United States of America, joined Apr 2005, 571 posts, RR: 1
Reply 13, posted (8 years 3 weeks 4 days 21 hours ago) and read 4082 times:

The best sources for comparison would be AA and UPS. AA has Rolls Royce engines on all that they bought new. But, the planes that came from the TWA merger had P&W. UPS bought planes new from Boeing with both engines.

User currently offlineHAWK21M From India, joined Jan 2001, 31679 posts, RR: 56
Reply 14, posted (8 years 3 weeks 4 days 18 hours ago) and read 4067 times:

Quoting Usair320 (Reply 10):
Indeed the RR's are ETOPS capable which is what CO has(correct me if im wrong) Dont know about the PW's not being ETOPS though

How does the Engine get ETOPS capability.What constitutes Engine requirements to be fullfilled for ETOPS.
regds
MEL



Think of the brighter side!
User currently offlineTepidHalibut From Iceland, joined Dec 2004, 209 posts, RR: 6
Reply 15, posted (8 years 3 weeks 4 days 6 hours ago) and read 4027 times:

Quoting HAWK21M (Reply 14):
How does the Engine get ETOPS capability.What constitutes Engine requirements to be fullfilled for ETOPS.

Generally speaking, from in-service reliability stats. IIRC, the aircraft basically gets 60-mins ETOPS as a matter of course, and once the fleet achieves 250,000 hrs in service, the engine can get 90-min ETOPS IF the IFSD rate is suitably low. There would be similar stats requirements for higher ETOPS ratings. ("Early ETOPS" is a completely different kettle of fish.) JAR-OPS is the set of regs you may wish to consider...

Of course, you could just have Googled for an answer....
http://en.wikipedia.org/wiki/ETOPS


User currently offlineHAWK21M From India, joined Jan 2001, 31679 posts, RR: 56
Reply 16, posted (8 years 3 weeks 4 days 5 hours ago) and read 4024 times:

Quoting TepidHalibut (Reply 15):
IF the IFSD rate is suitably low.

So On the Engines Point of View.With Regards to ETOPS only Requirement is a Good track record in terms of IFSD.

The rest lies with the Airframe.like HMG etc

regds
MEL



Think of the brighter side!
User currently offlineUsair320 From United States of America, joined Nov 2003, 991 posts, RR: 2
Reply 17, posted (8 years 1 week 6 days 13 hours ago) and read 3884 times:

Quoting Lucky42 (Reply 12):
AA 757 are Rolls Powered

Thanks. I just found that out via the website.


User currently offlineGrandTheftAero From United States of America, joined Nov 2003, 254 posts, RR: 5
Reply 18, posted (8 years 1 week 5 days 20 hours ago) and read 3843 times:

My understanding is that the PW2000 does not have a variable bleed system for operability. There is only a valve that opens or closes to control operating margin. Is this true?

If it is true, is the opening of this valve the loud WHOOSH sound I hear after T/R depolyment on Delta's 757s?


User currently offlineBrowntailWhale From United States of America, joined Oct 2001, 213 posts, RR: 0
Reply 19, posted (8 years 1 week 4 days 23 hours ago) and read 3808 times:

UPS' Pratts are 2040s.

User currently offlineLightsaber From United States of America, joined Jan 2005, 13018 posts, RR: 100
Reply 20, posted (8 years 1 week 4 days 21 hours ago) and read 3794 times:
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Quoting HAWK21M (Reply 4):
Ok Thanks.
How do they rate with the RB211-535Cs & E4s.Maintenance wise.

In the past, as noted, poorly. As well as the stator cracks noted by DL757md, the turbine life was only half of promise on the PW2000's initially. I'm curious to know how the "fix" is working out. The RR's for a while had 4X the turbine life of the Pratt's, but a much higher fuel burn.

Quoting MarkC (Reply 11):
The 2000's are ETOPs capable. Some of the very early build parts are not though. Its easy enough to convert most during an overhaul.

 checkmark  You seem to know your Pratt's... Welcome to my RU list.

An added benefit is the Pratt's burn a lot less fuel than the RR's. However, the RR's improved reliability helped them get into ETOPs service easier.

Quoting HAWK21M (Reply 16):
So On the Engines Point of View.With Regards to ETOPS only Requirement is a Good track record in terms of IFSD.

From the design side, its a little more than that. There is a *ell of a lot more documentation for a new ETOPs design than non-ETOPs. However, to take an existing fleet and convert it to ETOPs, its much simpler on the engine side than the airframe side. The other change for ETOPs vs. non-ETOPs is the maintenance plan. However, I would need to have an operations guy explain in more detail. We R&D weenies only worry about that when we go in to fix a problem.  Wink

Lightsaber



Societies that achieve a critical mass of ideas achieve self sustaining growth; others stagnate.
User currently offlineHAWK21M From India, joined Jan 2001, 31679 posts, RR: 56
Reply 21, posted (8 years 1 week 4 days 9 hours ago) and read 3762 times:

Quoting Lightsaber (Reply 20):
There is a *ell of a lot more documentation for a new ETOPs design than non-ETOPs. However, to take an existing fleet and convert it to ETOPs

Any ETOPs Aircraft with RB211-535Cs on them.
regds
MEL



Think of the brighter side!
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