[REQ] Reduction Gears

[Capt Jack Harkness]

Indeed, but what about the one in a million chance that you are submerged close enough to a friendly u-boat to see it's props through the scope, hmm? In the Cold War, US subs often followed Soviet subs at depth while maintaining visual surveillance via the periscope...

Anyhow, I would say that getting the props turning the right way is more important than the right gear ratio...