Strange passenger jet formation?

Firstly, some context. This was spotted in Irthlingboroguh, England at around 8.30 on the morning of 14/11/2008.

I saw 4 passenger jets (to the best of my knowledge they were passenger jets anyway, complete with the standard contrails) flying close together moving in the same direction; now this immediately got my attention.

Then I noticed that three were flying in a perfect ^ formation, and appeared to be no more than 2 wings widths apart from eachother and the two behind the leader possible a planes length or two behind. The frouth plane was right behind making a sort of diamond formation, though it was flying rather irratically up and down in the middle of this formation, however after going up and down about two times it rejoined the ^ formation behind one of the other planes.


It honestly look as though these planes were going to crash into one another.

A qick check on google maps shows me the planes were heading in a south-westerly direction.

Does ANYBODY know what this was, or even what it could have been?

[edit on 14-11-2008 by StevenDye]