Bacardi182 From United States of America, joined Jan 2000, 1091 posts, RR: 1 Posted (15 years 2 days 19 hours ago) and read 1151 times:
what are these cone shaped things that stick out of the back of the tail engine?
go here for a picture
notice how the cones vary in shape and size
why do some airplanes not have this cone?
DL_mech From United States of America, joined Feb 2000, 2055 posts, RR: 9
Reply 3, posted (15 years 2 days 13 hours ago) and read 943 times:
A 4056 engine is a Pratt&Whitney engine that is installed in a Boeing. A 4460 is a Douglas engine. They are all essentially the same engine except for thrust rating and they can be identified by the second number in their model. 0=Boeing, 1=Airbus, 4=McDonnellDouglas. A 4360 engine was previously built by P&W as a reciprocating engine installed in B-36s, B-50s and 377 Stratocruiser.
This plane is built to withstand anything... except a bad pilot.
MD-90 From United States of America, joined Jan 2000, 8508 posts, RR: 12
Reply 6, posted (15 years 1 day 18 hours ago) and read 911 times:
I may be wrong, but I'm pretty sure that the Delta's MD-11s are GE powered and that it's the PW engines that have the extended cone. I could be wrong, but that's what I've read. I wonder why some of the PW engines have the long cone and the others have the shorter cone? I know that you can't see the engines in these two pictures but they're my favorite Delta MD-11 pics.
DLMD-11 From , joined Dec 1969, posts, RR:
Reply 8, posted (15 years 1 day 17 hours ago) and read 908 times:
The majority of Delta's MD-11s are powered by the PW engine, and it is DEFINATELY the GE engine that has the cone coming out of the engines.
The only Delta MD-11s that WERE powered by GE engines were two that were in the MDC test program - they were on lease from an aviation lessor to Delta for a while, while the airline waited for the deliveries. Once they got their own, the two GE powered aircraft were returned to the lessor.
The reason that Delta got these aircraft was because they were originally destined for Air Europe (the British one) but that airline went belly up shortly before construction began on the airframes in question. Delta subsequently took the opportunity at hand to take early delivery of the new type. These planes were registered N891DL and N892DL.
The aircraft registered N801DL thru N815DL (Delta's current fifteen aircraft) are all powered by Pratt & Whitney PW4000s.