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Planespotting in the upper atmosphere! All pictures, reports or whatever question about upper level traffic come here

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speedbird1
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Post by speedbird1 »

Emirates wrote:
The trails seem too long


How do you mean? Too long for fuel dump? Sorry if I misunderstand you.
Fuel dump trails are always more intense unless there's no more fuel left to dump. Thus longer and thicker than just floating water which is gathered by the wing. Certainly with such a relatively nice weather. Maybe when it would have been raining.
I've seen DC-10's coming in at Brussels (short final in my garden) with heavy rainfall 100's of times and never saw them with such big water trails.

Can't think of anything else but fuel dump. To me water trail is excluded because of too intense and no trail at the inboard flaps, where there also should have been some trail visible.


Steady on old chap. What I was saying was that the trails were too long to be water/condensation.

Emirates

BieleAlbatrosy
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Post by BieleAlbatrosy »

[quote="Emirates"][/quote]

Sorry didn't mean to offend you :oops: Just missunderstood you seamingly. :oops:

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speedbird1
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Post by speedbird1 »

@BieleAlbatrosy, no worries my friend!


Emirates

HorsePower
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Location: France

Post by HorsePower »

BieleAlbatrosy is right, this is a fuel dump.
http://www.boeing.com/assocproducts/air ... ffdc10.pdf
(see page 7)

Regards

Seb.

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speedbird1
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Post by speedbird1 »

Woo we got there in the end!

Emirates

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speedbird1
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Post by speedbird1 »

http://www.airliners.net/open.file/792399/L/

Just seen this, the comment has changed a little!

Emirates

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Mighty
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Post by Mighty »

Nice findings HorsePower!

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Bruspotter
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Post by Bruspotter »

Hello


Wish we saw more of these scenes here in Belgium too :D it's wet enough here :D

It could almost impossibly be a fuel dump because they always remove the fuel dump nozzle as far as possible from the engines and that doesn't looks the case. They should be located somewhere near the wingtip (but I think not ON the wingtip because vortices could cause the fuel-stream to go any direction, wich means the stream isn't anymore controlled).


Best regards: Yannick ;)

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