I have decided to become a submariner in the navy and I've been told that with my HND in engineering I am more than a good candidate for the job, apparently they're in need of them too so I'm quite lucky. I was told that I should be able to run 1.5 miles under 12 minutes and 20 seconds. I gave this a good shot today and found a need to keep up about 7.5 to 8 miles and hour to do it but this seems really fast and even the trainer in the gym is slightly surprised at the pace. Have I got it wrong or is this about right?