This is very much tongue in cheek and I know I said it before but here you go:
Modern control systems enable a submarine to operate much like an airplane, but subs fly in a sea of water. Similar to a plane's wings and tail, a sub's hull-mounted hydroplanes allow the boat to ascend or descend several hundred feet per minute. Like planes, submarines must consider the topography of their surroundings. Underwater mountains and valleys, just like the continental ones, limit the maneuverability of submarines. SONAR is used actively to detect underwater obstacles and increase mobility
Next time you are at 40,000ft and see a UFO..... Think submarine
Originally Posted by Red Plum
1982. Grytviken, South Georgia. ARA Santa Fe (being moved under command of RN prize crew). Argentine CPO Felix Artuso shot dead at close range by armed guard.
As has been stated previously this person was shot dead by an armed guard (Royal Marine) who was of the opinion that this person was trying to scuttle the boat they were on.