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What's Coming From The Wing Of This IL96?  
User currently offlineTrav110 From Canada, joined Jun 2005, 536 posts, RR: 3
Posted (7 years 3 months 1 day 4 hours ago) and read 3675 times:


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Looks like some type of fluid, any ideas?

23 replies: All unread, jump to last
 
User currently offlineCM767 From Panama, joined Dec 2004, 649 posts, RR: 1
Reply 1, posted (7 years 3 months 1 day 4 hours ago) and read 3665 times:

Probably just condensation.

[Edited 2007-01-23 23:31:55]


But The Best Thing God Has Created Is A New Day
User currently offlineMDorBust From , joined Dec 1969, posts, RR:
Reply 2, posted (7 years 3 months 1 day 4 hours ago) and read 3646 times:

It looks to be coming from the fuel dump masts.

Likely the tanks were overtopped and the excess is draining out after rotation.

*EDIT*

On second thought, it looks to be in landing configuration.. So... errr.. I'll concur with condensation.

[Edited 2007-01-23 23:33:27]

User currently offlineTrav110 From Canada, joined Jun 2005, 536 posts, RR: 3
Reply 3, posted (7 years 3 months 1 day 4 hours ago) and read 3646 times:

Quoting MDorBust (Reply 2):
It looks to be coming from the fuel dump masts

Ah, that might explain it. I've never seen the masts so far inboard, though. Peculiar.


User currently offlineCharliejag1 From United States of America, joined Aug 2006, 239 posts, RR: 0
Reply 4, posted (7 years 3 months 1 day 4 hours ago) and read 3613 times:

I think its probably condensation, but what about blown flaps? Do the russians use them at all?

User currently offlineORDRyan28 From United States of America, joined Jul 2006, 988 posts, RR: 16
Reply 5, posted (7 years 3 months 1 day 4 hours ago) and read 3613 times:

I initially thought it was coming from the fuel dump masts as well. But considering it's landing, that cannot be right...

Just a unique version of condensation in a unique location  Smile



Whoever said winning is not everything never fought cancer.
User currently offlineAirfoilsguy From , joined Dec 1969, posts, RR:
Reply 6, posted (7 years 3 months 1 day 4 hours ago) and read 3613 times:

Quoting Charliejag1 (Reply 4):
but what about blown flaps?

What is that?  Confused


User currently offlineN243NW From United States of America, joined Jul 2003, 1609 posts, RR: 20
Reply 7, posted (7 years 3 months 22 hours ago) and read 3396 times:

Quoting Airfoilsguy (Reply 6):
What is that?

Bleed air taken from the engines and "blown" over the underside of the wing and trailing edge flaps, therefore increasing airflow over the flaps and creating more lift. I'm sure someone can elaborate more, as I'm not an expert on exactly how they work.

-N243NW Big grin



B-52s don't take off. They scare the ground away.
User currently offlineJben From Australia, joined Aug 2006, 77 posts, RR: 4
Reply 8, posted (7 years 3 months 19 hours ago) and read 3349 times:

I think it's the chemtrail dispenser, seems to have suffered a serious leak.

:p

Actually, it's probably just condensation, given the time of year and the location, it sounds about right to me.


User currently offlineJetMech From Australia, joined Mar 2006, 2638 posts, RR: 53
Reply 9, posted (7 years 3 months 18 hours ago) and read 3339 times:

Quoting N243NW (Reply 7):

Most of the blown flap mechanisms that I have read about actually blow air across the top of the wing surface and flaps. The Coanda effect causes the air to "stick" to the upper contours of the wing and flap. When the air is blown across a deflected flap, it will be vectored downwards. This makes additional lift.


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Regards, JetMech



JetMech split the back of his pants. He can feel the wind in his hair.
User currently offlineMD11Fanatic From United States of America, joined Oct 2006, 81 posts, RR: 0
Reply 10, posted (7 years 3 months 14 hours ago) and read 3281 times:

The C-17 has blown flaps, doesn't it? The original 707 prototype experienced with this too and achieved stall speeds well under 100kts with it!!!

User currently offlineVikkyvik From United States of America, joined Jul 2003, 9405 posts, RR: 27
Reply 11, posted (7 years 3 months 13 hours ago) and read 3242 times:
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Quoting N243NW (Reply 7):



Quoting JetMech (Reply 9):

I might be wrong, but I thought "blown flaps", at least as seen on the C-17, were simply flaps that are extended down behind the engines - into the exhaust stream. They thereby exert a downward force on the jet exhaust, and create more lift.

Corrections welcome  Smile

~Vik



"Two and a Half Men" was filmed in front of a live ostrich.
User currently offline474218 From United States of America, joined Oct 2005, 6340 posts, RR: 9
Reply 12, posted (7 years 3 months 11 hours ago) and read 3218 times:

I agree that it is condensation, but why do you think its landing? The flaps appear to be only about a third to half way extended, which would suggest takeoff.

User currently offlineDavid L From United Kingdom, joined May 1999, 9487 posts, RR: 42
Reply 13, posted (7 years 3 months 10 hours ago) and read 3181 times:

Quoting 474218 (Reply 12):
why do you think its landing? The flaps appear to be only about a third to half way extended, which would suggest takeoff.

I was hoping someone else would ask that! Two clues I can think of are the flap position and the attitude but I don't see those as necessarily indicating a landing. But, if it's landing, why are the trails in question extending down and back, even some way behind the aircraft?


User currently offlineAirfoilsguy From , joined Dec 1969, posts, RR:
Reply 14, posted (7 years 3 months 8 hours ago) and read 3131 times:

My guess is take off. Otherwise the photographer took a pic of it landing then waited for everyone to deplane, fuel up, new passenger boarding, and push back in order take a pic of push back.


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User currently offlineSovietjet From Bulgaria, joined Mar 2003, 2519 posts, RR: 17
Reply 15, posted (7 years 3 months 7 hours ago) and read 3116 times:
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Could it be snow? It kinda looks like it...

User currently offlineA342 From Germany, joined Jul 2005, 4675 posts, RR: 3
Reply 16, posted (7 years 3 months 7 hours ago) and read 3098 times:

As one can see when looking at the left FTF (seen from behind the aircraft), that stuff is coming from the upper side of the wing, not out of the FTF. So I don't think it's fuel.

Quoting Vikkyvik (Reply 11):
I might be wrong, but I thought "blown flaps", at least as seen on the C-17, were simply flaps that are extended down behind the engines - into the exhaust stream.

Both methods are possible.



Exceptions confirm the rule.
User currently offlineDHHornet From United Kingdom, joined May 2006, 252 posts, RR: 0
Reply 17, posted (7 years 3 months 6 hours ago) and read 3070 times:

How about De-icing fluid?

User currently offlineMidEx216 From United States of America, joined Jun 2005, 651 posts, RR: 4
Reply 18, posted (7 years 3 months 5 hours ago) and read 3056 times:

Quoting Airfoilsguy (Reply 14):
Otherwise the photographer took a pic of it landing then waited for everyone to deplane, fuel up, new passenger boarding, and push back in order take a pic of push back.

Those two pictures, though taken of the same airplane at the same airport on the same day, were not taken by the same person. So, chances are one person took a picture of it it's arrival, and then the other took a picture of it about an hour later pushing back for departure..



"Cue the Circus Music!"
User currently offlineAirfoilsguy From , joined Dec 1969, posts, RR:
Reply 19, posted (7 years 3 months 3 hours ago) and read 3011 times:

Quoting MidEx216 (Reply 18):
Those two pictures, though taken of the same airplane at the same airport on the same day, were not taken by the same person

Yes, you are correct. Improper use of the search function on my part.  ashamed 


User currently offline474218 From United States of America, joined Oct 2005, 6340 posts, RR: 9
Reply 20, posted (7 years 3 months 3 hours ago) and read 2993 times:

Definately taking off, check the flap position on a landing IL96:

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User currently offlineBAe146QT From United Kingdom, joined Sep 2006, 996 posts, RR: 0
Reply 21, posted (7 years 2 months 4 weeks 1 day 14 hours ago) and read 2882 times:

Quoting JetMech:
This makes additional lift.

I've always loved the Coaler. I don't know why, but there is something really aesthetically pleasing about it to me.

Quoting A342:
Both methods are possible.

Agreed.

One is internally blown flaps, where the bleed air is channelled through the wing and then vented out the back. I have a feeling that this was really only common on fighters, with a centrally-mounted engine like the F-104.

The other is externally blown flaps, which Vik was describing. Interestingly, the A380 uses this concept.

By the way - check out the stall speed on this thing;

http://www.airliners.net/open.file/0587535/M/



Todos mis dominós son totalmente pegajosos
User currently offlineHAWK21M From India, joined Jan 2001, 31580 posts, RR: 57
Reply 22, posted (7 years 2 months 4 weeks 1 day 11 hours ago) and read 2840 times:

Quoting BAe146QT (Reply 21):
One is internally blown flaps

Anyone aware that these type Flaps exist on the IL96.
regds
MEL



Think of the brighter side!
User currently offlineMidEx216 From United States of America, joined Jun 2005, 651 posts, RR: 4
Reply 23, posted (7 years 2 months 4 weeks 1 day 3 hours ago) and read 2749 times:

Quoting BAe146QT (Reply 21):
I've always loved the Coaler. I don't know why, but there is something really aesthetically pleasing about it to me.

Yeah, that, and I've been taking a liking to the Tu-154. Don't ask why, but those are the only two Russian commercial jets that I really like.



"Cue the Circus Music!"
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