3 ms·

What's preventing them from using periscope depth designs? Seems like it would be a lot stealthier than these half/half designs

• Bluestein 2y ago
  There apparently are models that do have somewhat of a periscope/snorkel/apparatus and are capable of some submersion ... Apparently, the 'very shallow and thin' model is good enough to not get caught, without having to dive (heh) into the complexities associated with submersion.-