747-600X
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Bulge In A330-200's Tail (@ Base)?

Tue May 16, 2000 4:28 am

Check out this photo, full size probably works best, of an SR A330-200, and notice that there is a bulge near the base of the tail. What is this? Is it on all aircraft and I just've never seen it?

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Click here for full size photo!

Photo © Stefan Gruenig


Thanks!
 
Guest

RE: Bulge In A330-200's Tail (@ Base)?

Tue May 16, 2000 6:07 am

I think, but I'm not 100%, that it's the fuel tank in the fin, which can also be found on the A310, A300-600R and possibly the A340. I don't think any other manufacturers use the "empty" space in the tail fin for fuel. I remember reading Boeing were considering it for the 777X - don't know if they rejected the idea.
 
747-600X
Topic Author
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RE: Bulge In A330-200's Tail (@ Base)?

Tue May 16, 2000 7:01 am

Can anyone confirm or deny this? I know the 747-400 has fuel in the horizontals, but I've never heard of it in the vertical tail itself.
 
VC-10
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RE: Bulge In A330-200's Tail (@ Base)?

Wed May 17, 2000 2:52 am

The only a/c I am aware of that has a fin tank is the original RAF VC10's & the Super VC10.

The bulge at the base of the fin on Airbus a/c is the fairing for the fin attachment fittings. The aft fuel tank on Airbus's are in the Horizontal Stabiliser.
 
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sammyk
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RE: Bulge In A330-200's Tail (@ Base)?

Wed May 17, 2000 3:10 am

I've been wondering about this for years...everytime I brought it up (not here) people would say "huh?? What are you talking about??" So I let it go...

Anyways, why is it a bulge, why couldnt it have been made a nice smooth line between the fuselage and the fin? It looks like a giant weld mark...

Sammy
 
ual757
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RE: Bulge In A330-200's Tail (@ Base)?

Wed May 17, 2000 3:15 am

it's roumored that some have a small rederve in the tail, but i've never seen or offically heard of it.
 
teahan
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RE: Bulge In A330-200's Tail (@ Base)?

Wed May 17, 2000 6:59 am

Could it be something to do with communications? Just my guess!

Jeremiah Teahan
Goodbye SR-LX MD-11 / 6th of March 1991 to the 31st of October 2004
 
woodsboy
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RE: Bulge In A330-200's Tail (@ Base)?

Wed May 17, 2000 7:09 am

Yes, the 747-400 has fuel tanks in the verticle stab as does the MD-11. And its true the the Vickers VC-10 was the first aircraft to employ this technology much to its advantage in being able to manipulate its CG in flight to optimize cruise performance. And what a fantastic airplane the VC-10 was.....

I am not sure if the A330 does or not, but it is certainly possible. One could visit the Airbus website which has wonderful cutaways of their aircraft. Nice site in general actually.
 
FDXmech
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RE: Bulge In A330-200's Tail (@ Base)?

Wed May 17, 2000 8:02 am

The MD11 has a fuel tank in the horizontal stabilizer used mainly for control of center of gravity. There is no tank in the vertical stabilizer. The same goes for the A300-600 and A310, fuel in horizontal stabilizer (called the trim tank) but no fuel storage in the vert. stab.
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