Why have newer naval ships not moved broadly to azipod propulsion?
Short answerDamage-control concerns, maintenance costs and implementation complexity favor the well-established practices used for conventional shafts.
NotesPodded propulsion continues to be considered for warships. Damage-control requirements, maintenance costs and the complexity of fitting the system have discouraged adoption. Conventional shafts benefit from familiar, well-established operating and maintenance practices. Naval use of azipods remains a possibility rather than an announced development.