A modern author who's fairly good in this regard is Andy Weir; the main thing is you have to do a ton of research while writing and have trusted sources (I thin

A modern author who's fairly good in this regard is Andy Weir; the main thing is you have to do a ton of research while writing and have trusted sources (I think Clancy had many) to rely on when mulling over the details. The tough thing is, once you get "above average" in terms of accuracy, those of us who like to be a little more pedantic will grade on a curve!