Help - Search - Members - Calendar
Full Version: Md-11 Engines
Flightlevel350.com Forums > FL350 Forum > Technical
VSA380
hello,
I've noticed that Finnairs Md-11 engine vary slightly from the shorter stubby cones : http://www.airliners.net/open.file/1113223/L/

to the long cones:
http://www.airliners.net/open.file/1119751/L/

to some that even have both :
http://www.airliners.net/open.file/1102812/L/
this one is esp wierd as it has engine no1 and 2 the same but 3 is different

they are both the same manufacturer but why the difference in size of the exhaust cone?

Dan icon_cool.gif
klm_city_hopper
There was a similar topic on the Tri-Star, whether it's the same kinda thing or not I'am not sure, but take a look.

QUOTE
The engines on the very early model Tristars had an even longer "hot section" fitted. It was shown through tests though, that they offered no performance gains, so a redesigned shorter "hot section" covering was installed, and early models were retrofitted with the samller and lighter units.


Quoted From Empress in this topic.
VSA380
QUOTE(klm_city_hopper @ Oct 25 2006, 10:46 PM) *
There was a similar topic on the Tri-Star, whether it's the same kinda thing or not I'am not sure, but take a look.



Quoted From Empress in this topic.


ah ok seens the same, cheers for the help Klm_city_hopper

Dan icon_cool.gif
Fluffdoc
There is a GE (Finnair's MD-11s use GE CF6-80C2 engines) modification that replaces the standard short cone with a longer cone. The engines themselves are otherwise identical. I'm not sure of the purpose of the modification but I guess it probably reduces fuel consumption. Apparently the airplane in the last photo has a mix of modded and non-modded enignes.
Ranger
Fluff beat me to it. To my knowledge, the MD-11 came equipped with two engine options. The General Electric CF6-80C2D1F producing 61,500 lbs. of thrust and the Pratt&Whitney PW4462 producing up to 62,000 lbs. of thrust. FinnAir uses the GE's so as Fluff said, it must a mod.

By the way, either engine is wonderful. My company has MD-11's with both. They are easy to operate, have lots of power and are reliable.
anilv
QUOTE(Ranger @ Oct 30 2006, 11:26 PM) *
Fluff beat me to it. To my knowledge, the MD-11 came equipped with two engine options. The General Electric CF6-80C2D1F producing 61,500 lbs. of thrust and the Pratt&Whitney PW4462 producing up to 62,000 lbs. of thrust. FinnAir uses the GE's so as Fluff said, it must a mod.

By the way, either engine is wonderful. My company has MD-11's with both. They are easy to operate, have lots of power and are reliable.



"My company" would mean?R u with an airline?


By the way how do you tell the diff between a DC10-30 and a MD11 from the external view?
Questions r for RANGER.
SF3aviatrix
QUOTE(anilv @ Nov 18 2006, 06:28 AM) *
"My company" would mean?R u with an airline?

Yes. He's our resident Captain from the purple carrier that delivers The World On TIme

http://www.flightlevel350.com/aviation_video.php?id=4758
http://www.flightlevel350.com/aviation_video.php?id=4759

QUOTE(anilv @ Nov 18 2006, 06:28 AM) *
By the way how do you tell the diff between a DC10-30 and a MD11 from the external view?


From a spotters point of view: a streteched fuselage, longer wingspan, modified tail and the most obvious clue- the winglets.
Ranger
What Trixie said. (God, I love intelligent women! Especially if they speak pilot.)
SF3aviatrix
QUOTE(Ranger @ Nov 18 2006, 03:31 PM) *
What Trixie said. (God, I love intelligent women! Especially if they speak pilot.)


Funny...my last non-pilot b/f tried to break me of 'pilot-speak'. Didn't work.
anilv
QUOTE(SF3aviatrix @ Nov 18 2006, 10:36 PM) *
Yes. He's our resident Captain from the purple carrier that delivers The World On TIme

http://www.flightlevel350.com/aviation_video.php?id=4758
http://www.flightlevel350.com/aviation_video.php?id=4759
From a spotters point of view: a streteched fuselage, longer wingspan, modified tail and the most obvious clue- the winglets.

Checked out both the videos.Nice job Ranger!I did see the videos earlier but never made the connection.Very informative.I used to live in Dubai and Sharjah earlier.These MD-11's were frequent visitors.I'm sure he must have been in one of them.I do hope he finds the time to shoot more videos for enthus like me,although I do hope the language is not pilot type but more elementary for starters to understand.
Cheers!
mpeterson
QUOTE(SF3aviatrix @ Nov 18 2006, 11:58 PM) *
Funny...my last non-pilot b/f tried to break me of 'pilot-speak'. Didn't work.



female pilots have boyfriends? ha.
tripleseven
QUOTE(mpeterson @ Dec 4 2006, 02:11 PM) *
female pilots have boyfriends? ha.



Why wouldn't they?
This is a "lo-fi" version of our main content. To view the full version with more information, formatting and images, please click here.
Invision Power Board © 2001-2013 Invision Power Services, Inc.