CHRISBA777ER From UK - England, joined Mar 2001, 5964 posts, RR: 63 Posted (5 years 5 months 1 week 6 days 18 hours ago) and read 2783 times:
Hullo,
I've struggled to tell the difference for a long time between the different engines on the A330.
The Rolls ones are obvious, but how do you tell between the CF6 and the PW? Are there different variants that look different, or is it just a case of remembering who has what?
Rgds,
CM
What do you mean you dont have any bourbon? Do you know how far it is to Houston? What kind of airline is this???
Steman From Germany, joined Aug 2000, 1275 posts, RR: 8 Reply 2, posted (5 years 5 months 1 week 6 days 18 hours ago) and read 2737 times:
CF6-80 are easy to spot ´cause they have a cone protruding from the nozzle
while all the PW (apart from those installed on the 777) don´t.
Just check PWs equipped A330 like Korean Air, MD11s like JAL or Swiss
and compare with GE powered A330 like Air France and MD11 like KLM
Transpac787 From United States of America, joined Jul 2007, 3139 posts, RR: 14 Reply 3, posted (5 years 5 months 1 week 6 days 18 hours ago) and read 2731 times:
NWA, now with the largest A330 fleet in the world, has been a long-time PW customer, and has the PW4168A on all their A330's. AF has always been a die-hard GE customer, and has the CF6 on their 330's.
The best dead-giveaway I can offer, is the aft part of the engine. The CV6 has that huge spike thing (is it obvious I'm not an engineer?!?), while the PW does not. Unfortunately I don't really know how to explain it any better than that, haha.....so hopefully the pictures speak for themselves.
Transpac787 From United States of America, joined Jul 2007, 3139 posts, RR: 14 Reply 4, posted (5 years 5 months 1 week 6 days 18 hours ago) and read 2731 times:
Albird87 From , joined Dec 1969, posts, RR: Reply 5, posted (5 years 5 months 1 week 6 days 17 hours ago) and read 2707 times:
Is there a reason why then RR makes there engines exaushts so different?? I know they look cool but is there an actual advantage to the shapes of the RRs??
Transpac787 From United States of America, joined Jul 2007, 3139 posts, RR: 14 Reply 7, posted (5 years 5 months 1 week 6 days 17 hours ago) and read 2670 times:
Also, if you happen to know the model number ahead of time, that's how Airbus designates their planes. Boeing assigns model numbers based on the ordering customer, but Airbus assigns model numbers based on aircraft series, and then engine type.
Ex- All of the NW A330's are A330-223 or A330-323, as they all are equipped with the PW4168A's.
Quoting Steman (Reply 6): Is it true that NW has the biggest A330 fleet in the world?How many do they have?How does it compare with the likes of CX and EK?
Yes, they do. There was a thread about it awhile back I'll see if I can't dig it up here. Anyhow, current fleets of your mentioned airlines are:
Transpac787 From United States of America, joined Jul 2007, 3139 posts, RR: 14 Reply 11, posted (5 years 5 months 1 week 6 days 17 hours ago) and read 2523 times:
747fan From United States of America, joined Jun 2007, 1165 posts, RR: 1 Reply 13, posted (5 years 5 months 1 week 6 days 15 hours ago) and read 2370 times:
Here's another comparison involving the Airbus A300-600R:
UPS A306, PW4058
I'm usually able to pick out different engines based on their sounds. However, the PW4000 on the A330, A300, 744, and 767 sound nearly identical during takeoff to the CF6-80 series - the fan growl is ever so slightly different; sometimes I can barely tell the difference, but usually I can't. They do sound a little different when landing, so its easier to tell which engine when spotting approaches. On the other hand, all 3 777 engines are easy to tell apart.
PlunaCRJ From Uruguay, joined Nov 2007, 573 posts, RR: 2 Reply 14, posted (5 years 5 months 1 week 6 days 15 hours ago) and read 2326 times:
Quoting Albird87 (Reply 5): Is there a reason why then RR makes there engines exaushts so different?? I know they look cool but is there an actual advantage to the shapes of the RRs??
Interesting question, I would like to hear the answer.
PenPusher From Ireland, joined Oct 2000, 74 posts, RR: 0 Reply 16, posted (5 years 5 months 1 week 6 days 15 hours ago) and read 2244 times:
Hi All
The correct name for the Pointy thing on the CF6 Engines is an AFT Centerbody, I will not bore you with the part number, don't want to be seen as a complete Geek !!
Transpac787 From United States of America, joined Jul 2007, 3139 posts, RR: 14 Reply 17, posted (5 years 5 months 1 week 6 days 14 hours ago) and read 2165 times:
They're actually PW4158's. Pratt & Whitney has specific designations between aircraft types for engines. The first number designates the series.....2XXX, 4XXX, etc. The second number designates whether it is an Airbus or Boeing engine. Boeing is 0, Airbus is 1. The final two numbers designate the thrust-rating. Examples:
PW2037: 2000 series engine, for Boeing, 37k thrust rate
PW4168: 4000 series engine, for Airbus, 68k thrust rate
So, it would be "impossible" to have a PW4058 on an Airbus, it would have to be a PW4158.
Quoting Sketty222 (Reply 16): Sorry for being dim here but what does the RR engine look like compared to the other two? Does it have a pointy cone exhaust bit?
I personally find the RR motors on the A330 to be horrifically ugly, and the PW and GE engines look far better. IMO, the Trent 892 and 895 look far better, the RR's on the 777, despite having the smallest fan diameter offered on the 777.
Raggi From Norway, joined Oct 2000, 958 posts, RR: 1 Reply 18, posted (5 years 5 months 1 week 6 days 14 hours ago) and read 2133 times:
Quoting Transpac787 (Reply 18): The second number designates whether it is an Airbus or Boeing engine. Boeing is 0, Airbus is 1. The final two numbers designate the thrust-rating. Examples:
Correct, and if it's a MD, the number 4. Hence the PW 4462 on the MD-11 for instance.
Jacobin777 From United States of America, joined Sep 2004, 14968 posts, RR: 61 Reply 19, posted (5 years 5 months 1 week 6 days 14 hours ago) and read 2111 times:
Quoting PenPusher (Reply 17): Hi All
The correct name for the Pointy thing on the CF6 Engines is an AFT Centerbody, I will not bore you with the part number, don't want to be seen as a complete Geek !!
..nothing wrong with being a "geek" here...we already have a few of them and they are highly regarded and respected.
The more information which can be provided the more we learn and appreciate..
Flipdewaf From United Kingdom, joined Jul 2006, 1522 posts, RR: 1 Reply 20, posted (5 years 5 months 1 week 6 days 13 hours ago) and read 2058 times:
Quoting Albird87 (Reply 5): Is there a reason why then RR makes there engines exaushts so different?? I know they look cool but is there an actual advantage to the shapes of the RRs??
I asked my lecturer and he said it was mainly due to helping with reducing noise and directing flow better.
Phollingsworth From United Kingdom, joined Mar 2004, 825 posts, RR: 6 Reply 21, posted (5 years 5 months 1 week 6 days 12 hours ago) and read 1988 times:
Quoting Raggi (Reply 18): Correct, and if it's a MD, the number 4. Hence the PW 4462 on the MD-11 for instance.
GE does something similar on several of their engines for instance the CF6-80C2s if the 2 is followed by a B it is for Boeing, A for Airbus, D for McD. I am not sure what K is for. The GE90 is the same but there are only B models. Also on the CF6-80C2 if you see and F, e.g. B8F it is a FADEC engine
A342 From Germany, joined Jul 2005, 4655 posts, RR: 4 Reply 22, posted (5 years 5 months 1 week 6 days 12 hours ago) and read 1950 times:
Quoting Albird87 (Reply 5): Is there a reason why then RR makes there engines exaushts so different?? I know they look cool but is there an actual advantage to the shapes of the RRs??
Well, actually many RR engines have pointed exhausts, e.g. the Trent 500, 800, 900 and 1000. Among the RR high-bypass engines, only the Trent 700 and the RB.211-535E series as well as the RB.211-524G/H series have a "mixer nozzle". Correct me if I'm wrong!
To simplify this a bit, here are all the engine codes in the Airbus model designator A3xx-x_x:
0 = GE
1 = CFM
2 = P&W
3 = IAE
4 = RR
6 = EA (Engine Alliance)
Does anybody know why 5 is unoccupied? The best explanation I can come up with: 5 is used for Europrop International, the engine provider for the A400M.
Quoting Raggi (Reply 18): Correct, and if it's a MD, the number 4. Hence the PW 4462 on the MD-11 for instance.
And if it's an Ilyushin, the number 3 is used, e.g. the PW2337 on the IL-96M.
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