"Look out, it's coming right at us!"
Oh yes, he was indeed coming straight towards me, at quite a high speed as well. We get a lot of Hercules flights around here, but not normally quite that low and violent.
Interestingly, it's probably an American one rather than a UK one. The US planes seem to often fly around minus any form of identification markings, which is how you can identify them as US ones

According to an RAF friend of mine, if you see three of them in formation it's normally the UK lot, two at once is the US side (or one of the UK guys got lost). Five in a row without markings flying very low along the railway line are the US AND UK forces preparing to invade Iraq six months before they declared war, but that's another story...
pca