Thanks for your replies. I wasn't sure the kind of jobs that it would directly lead to and looking at job adverts (some for Qinetic) I couldn't figure out whether they were directly related to having the aeronautical engineering degree.
I know it's difficult to predict what's going to happen with wages in the amount of time it would take to graduate but roughly speaking what kind of range would a graduate with a couple of years under them be looking at?
My concern is that I'd also like to keep up the kind of lifestyle that I'm used to at the moment on a salary around the 45k mark gross taking into account I lose around 5k in net salary to train fare. I know a lot would say it's not all about the cash and it certainly isn't but there's still the mortgage to pay and a young child to support!