The motor’s wires were shortened ... The 3D printed body angles the motors slightly downwards, so when the submarine is moving forward it’s also being pulled deeper into the water.

Submarines began navigating the depths before ... It's powered by an electric motor coupled with a 62 kWh lithium battery. Introduced in October 2023, the Super Sub is not inexpensive, so if ...

By Choe Sang-Hun Reporting from Seoul North Korea said on Saturday that it was building its first nuclear-powered submarine to enhance its nuclear weapons abilities, and the state news media ...