Pods could improve maneuverability, reliability, and damage resilience while freeing designers from long shafts and a concentrated engine-room arrangement. Distributed power generation and several propulsion units would let a ship retain mobility after losing one pod. The idea is presented as a plausible direction for future combatants such as Type 83, while later discussion notes that pod size and docking clearance remain real constraints for very large ships.
Notable Point · 2:34:54-2:35:45
Why future warships may use podded propulsion
A machinery discussion predicts a move toward podded electric propulsion in future surface combatants.