What do you do when the world’s most advanced navigation technology fails in one of the most volatile regions on Earth?
In this episode, we dive into a high-stakes account from Captain Raghu Sharma, who took command of a 300,000-ton Very Large Crude Carrier (VLCC) in the midst of escalating Iran-Israel tensions.
Just days after a major collision between the Front Eagle and the shadow fleet’s Adalynn, blamed on spoofed GPS and unreliable AIS signals.
Captain Sharma found himself facing the same digital chaos.
In this episode, we explore:
• The "Blackout" Moment: What happens when both GPS units are jammed, leaving a massive vessel "navigating blindfolded" in a geopolitically charged zone.
• Old-School Seamanship: How the crew reverted to the fundamentals of Dead Reckoning (DR), Parallel Indexing (PI), and manual position offsets to stay on course.
• The Truth of Radar: Why Radar Information Overlay (RIO) is the ultimate game-changer when satellites lie, allowing a crew to "snap" their world back into place.
• The Human Cost of Spoofing: A humorous but sobering look at how AIS hijacking led the Captain’s wife to believe his ship was in Iran while he was actually mid-transit.
The Key Takeaway: Technology is a tool, but training is your lifeline. As Captain Sharma demonstrates, when the satellites go dark, it isn’t the tech that saves the ship, but the people, the drills, and the discipline of a prepared crew. Based on - https://thedeepdraft.com/2025/09/18/when-gps-goes-dark-steering-a-vlcc-through-the-persian-gulfs-chaos/