Simviation Forum - 737 dumping fuel... possible?

Jan 29^th, 2007 at 10:51am

Conan Edogawa Offline
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I'm curious, does the 737 have a fuel dump function?

Because I saw one 737 and the wingtops looked like the one of this little a/c:

http://eu.airliners.net/photos/photos/5/1/7/0617715.jpg

The line was interrupted at several times... What could it be?

I always thought the 737 never had one of this function, because I saw a film about the plane crash on hawaii (aloha 243) in which it is said, that there isn't a fuel dump function!

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Reply #1 - Jan 29^th, 2007 at 11:07am

C Offline
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You might wan't to take another look at the linking... Wink

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Reply #2 - Jan 29^th, 2007 at 11:27am

|Alex| Ex Member

737's do not have a fuel dump function, as there really isn't all that much point to it....

The 737 can land very close to the maximum take-off weight, and so it wasn't worth any of the airlines ordering the dump feature, as it costs more money.

What I believe you are seeing in that photo (even though I can't see it Roll Eyes

) are wing-tip vortices, they are usually formed when the passing air is forced through a small space (usually through a small gap in-between the wing, and flap) This compresses the air rapidly, forcing it to loose it's moisture, forming those little cloud-like streams you can see.

Hope that helped Wink

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Reply #3 - Jan 29^th, 2007 at 11:31am

|Alex| Ex Member

P.S. Why did you include a picture of a hawk?!
Surely this would have been a better picture to use?

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Reply #4 - Jan 29^th, 2007 at 11:35am

Conan Edogawa Offline
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Hamburg, Germany

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I didn't found one of the 737, just wanted to make sura that it looked like the one i posted. And here I knew there'll be a misunderstanding. I saw this stripes at the wing-tips, NOT at the flaps!

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Reply #5 - Jan 29^th, 2007 at 12:54pm

expat Offline
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Quote:

737's do not have a fuel dump function, as there really isn't all that much point to it....

The 737 can land very close to the maximum take-off weight, and so it wasn't worth any of the airlines ordering the dump feature, as it costs more money.

What I believe you are seeing in that photo (even though I can't see it Roll Eyes

) are wing-tip vortices, they are usually formed when the passing air is forced through a small space (usually through a small gap in-between the wing, and flap) This compresses the air rapidly, forcing it to loose it's moisture, forming those little cloud-like streams you can see.

Hope that helped Wink

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PETA People Eating Tasty Animals.

B1 Boeing 737-800 and Dash8 Q-400

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Reply #6 - Jan 29^th, 2007 at 12:55pm

|Alex| Ex Member

Conan Edogawa wrote on Jan 29^th, 2007 at 11:35am:

I didn't found one of the 737, just wanted to make sura that it looked like the one i posted. And here I knew there'll be a misunderstanding. I saw this stripes at the wing-tips, NOT at the flaps!

Quote:

What I believe you are seeing in that photo (even though I can't see it) are wing-tip vortices, they are usually formed when the passing air is forced through a small space (usually through a small gap in-between the wing, and flap) This compresses the air rapidly, forcing it to loose it's moisture, forming those little cloud-like streams you can see.

When did I say it always happened through the gap in-between the flaps? Wink

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Reply #7 - Jan 29^th, 2007 at 3:05pm