– How can Navy submarines communicate / navigate but the missing titanic submersible can’t do either.

Question

Context: https://www.bbc.com/news/world-us-canada-65953872

The above titanic submersible that went missing can only send short text messages from the ship to the submersible. From my understanding there is no GPS underwater and radio communication is impossible. How can Navy submarines communicate and navigate while submerged in the ocean but the missing submersible can’t?

In: 121

Answer 1

The missing Titanic Submarine likely had a catastrophic failure. They probably won’t find more than wreckage crushed by the pressure at the bottom of the ocean in water that’s perpetually near freezing. Large subs are built to withstand more pressure, and today’s subs have additional safety proof/crush proof technology subs as late as the 1970s didn’t have.