The USS Nautilus (SSN-571) is seen damaged after colliding with the aircraft carrier USS Essex (CV-9) during an at-sea training incident. The collision caused damage to the submarine's upper structure, including the sail area, while the pressure hull remained intact, allowing the vessel to return to port safely. On the Essex, the impact also caused damage to the hull and deck equipment. While this incident did not result in any major casualties, it highlights the risks of complex maneuvers betwe