You have a few options here.
The first is to find an Aerospace/Aeronautical Engineering course that will take you with those subjects.
The second option is to retake the year at college/sixth form, another (I assume free?) year of education to do the subjects that will get you straight onto first year on an engineering course. Remember with this, that you will potentially be a year older than all of your classmates.
The third option is this; if you find a uni that you want to do Aero Eng at, but they don't offer a foundation year, you can do a foundation year at a different uni, and transfer after that year, subject to being accepted.
The fourth year is to choose a uni that does Aero Eng, offers a foundation year, and stay there for the duration of your undergraduate studies. This is what I did, although my reason for doing foundation was not quite achieving the required grades. I found that foundation year was a really good way to gently settle into university life without too much pressure - the work isn't trivial, but it isn't too challenging, and that allows you to enjoy your free time more, go out, make friends etc, before the pressure of first year hits.
Having done it, I highly recommend a foundation year (I'm at Swansea, great for engineering), purely because it lets you settle into a new environment without too much pressure.