Chinese scientists have allegedly made a major breakthrough in submarine stealth technology. According to reports, the team has developed a hybrid active-passive engine vibration isolation system ...

Submarine propeller designs are highly classified due to their critical role in acoustic stealth and survivability. Cavitation noise from propellers is a major vulnerability, and advanced designs aim ...

While diesel engines don't need spark plugs, they do need air ventilation for proper combustion. This is a problem for vessels traveling underwater, such as submarines. Yet diesel submarines exist and ...