Cheers for the reply Geoff, that is some useful information. I found out it is a BAD idea to forget to close the ventilation system before diving, I ended up with severe rising damp!
Would you be interested in writing, or having someone else write (if given the bare bones details), a more comprehensive manual, as there is a lot of stuff i'm not sure about, such as the effects of altering the reactor pump speeds combined with altering the control rod levels to adjust the power output, or how to pump flood water out of your sub?