On Fri, 4 Jan 2013 18:09:05 +0000, DAN wrote
(in article ):

On Fri, 4 Jan 2013 15:52:40 +0000, you wrote:


And my eyes can't make sense of that white blob under the front fuselage.
Can anyone help?

A drop tank. See attached photos


Thanks - I'm convinced and your photo of the same aircraft removes all doubt.
I confess, however, that it still looks a bit odd to me, I think because of
the irregular markings on the tank combined with the contrast in colour
between the tank and the rest of the aircraft.