u/SaltAndChart

▲ 6 r/MerchantNavy+2 crossposts

ECDIS Certification Is Not the Same as ECDIS Competence

A watchkeeper can hold valid ECDIS certificates and still face an unfamiliar system at the moment of navigation. That is the gap this article looks at: the difference between documented training and current competence on the system actually installed onboard.

Operationally, this matters because ECDIS is no longer just a chart display. Route checking, safety contours, alarm settings, display layers, software versions and inherited configurations all affect how the officer interacts with the system during a real watch. The certificate may be valid, but the interface logic may still be unfamiliar.

From a Master Mariner’s view, the problem is that the industry can verify certificates, familiarisation forms and inspection records more easily than it can verify real operating familiarity. The ship is protected by the officer’s current ability to use the system in front of them, not by paperwork completed months or years earlier.

Full analysis: https://thedeepdraft.com/2026/05/11/ecdis-certification-is-not-the-same-as-ecdis-competence/

u/SaltAndChart — 1 day ago
▲ 1 r/MerchantNavy+1 crossposts

DeepDraft Weekly Maritime Brief | May 10, 2026: Hormuz Blockade Risk and UAE Fujairah Pivot

Hormuz has entered blockade risk, with Gulf transit shifting from delay into systemic disruption under GNSS degradation, kinetic threats, clearance uncertainty, and insurance pressure.

This week’s brief also looks at the UAE strategic pivot toward Fujairah and why non-Hormuz export routes are becoming central to Gulf crude logistics and tanker routing.

Full Weekly Brief: https://thedeepdraft.com/

u/SaltAndChart — 4 days ago
▲ 4 r/MerchantNavy+2 crossposts

Flettner Rotors: What the Device Is Designed to Do ?

This video isolates one design-level aspect of Flettner rotors that is often treated superficially. Simplified discussions tend to compress physics, intent, and outcomes into a single claim.

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u/SaltAndChart — 4 days ago
▲ 4 r/TheDeepDraft+1 crossposts

Maritime traffic today is operating at a level of density where visibility alone is no longer the limiting factor. AIS already provides continuous positional awareness, yet what the bridge actually works with is raw, broadcast information that still requires interpretation within a dynamic situation.

VDES is now entering that environment. It does not change navigation itself, but it changes how data moves. Instead of broadcast-only communication, it introduces structured, addressed data exchange between ship and shore, with the potential for information to arrive already integrated into onboard systems. That reduces friction in how information is received, but it also shifts how early that information begins to influence interpretation.

From a bridge perspective, this is not just a technology upgrade. When information arrives structured and ready for use, the boundary between awareness and decision-making starts moving closer to the point of receipt. The system adds capability, but it does not replace the need for verification through radar, visual observation, and established practice. The risk is not in the system, it is in how it is used.

VDES and AIS: What Actually Changes on the Bridge

u/SaltAndChart — 16 days ago