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Odd Looking RB211 On This EA 757-225  
User currently offlinePdpsol From United States of America, joined Feb 2004, 1120 posts, RR: 5
Posted (10 years 10 months 4 days 1 hour ago) and read 2223 times:

Why do the nacelles on this RB211-engined 757 look odd?

Is it an early version of the Rolls powerplant on the 757?


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4 replies: All unread, jump to last
 
User currently offlinePrinair From United States of America, joined Dec 1999, 744 posts, RR: 2
Reply 1, posted (10 years 10 months 4 days ago) and read 2148 times:

That was a less powerful version. It was the version available for earlier deliveries. As the more powerful engine became available EA replaced the engines.

I believe the difference was 37,500lbs vs. 40,100lbs approx.



PRINAIR : Puerto Rico International Airlines
User currently offlineAir1727 From , joined Dec 1969, posts, RR:
Reply 2, posted (10 years 10 months 4 days ago) and read 2077 times:

The older one was the -535C if you are looking for variant.

User currently offlineAccess-Air From United States of America, joined Sep 2000, 1940 posts, RR: 12
Reply 3, posted (10 years 10 months 3 days 22 hours ago) and read 1974 times:

Actually,

That was the original style of engine nacelle on the 757 before the decided to duct the whole thing in a common nacelle.

If you look closely this engine nacelle is the same style on the older 747-200s that BA flew as well as the RR powered 747SPs and of course, the L1011.
I think it was just to streamline the engine...because as you can see all RR powered 757s 767s and 747s now have the ducted RR engines....

Access-Air



Remember, Wherever you go, there you are!!!!
User currently offlineRiverVisualNYC From United States of America, joined Nov 2003, 930 posts, RR: 3
Reply 4, posted (10 years 10 months 3 days 22 hours ago) and read 1961 times:

Anyone know are there any performance or maintenence benefits from having the sort of one-piece nacelle the newer RB211s have (and the CFMs on the A340 as well)? Or is it mostly a cosmetic issue?

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