Sen Marine · Product Overview

FATHOMFamiliarisation

Close the familiarisation gap. Transform your vessel's safety manuals from static documents into a living, verifiable system of crew competence.

"The FATHOM app is revolutionising how superyacht crew manage and understand onboard safety." — Superyacht Content

The Familiarisation Gap

Even on the most well-run yachts, traditional familiarisation has a critical flaw: a lack of visibility. Manuals are read, drills are logged, and audits are passed — yet genuine crew knowledge is difficult to measure and often overestimated.


This gap — the difference between ticking a box and true competence — creates hidden risks that only surface during a real incident or high-pressure inspection. Fathom replaces assumption with accountability.

How It Works

A Dynamic System
of Readiness

Fathom integrates structured weekly assessments with your vessel-specific content — ensuring safety and technical procedures are not just available, but actively used, understood, and retained.

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Built from Your Vessel

Custom-built from your own SMS, SOLAS manuals, General Arrangement plans, and SOPs. Every assessment is 100% relevant to your specific vessel and crew.

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NFC Location Verification

Physical NFC tags on critical equipment — firefighting gear, life rafts, medical kits. Crew must physically locate and scan to answer questions, proving real-world readiness.

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Command Dashboard

Real-time performance data for senior crew. Instantly identify knowledge gaps by individual, department, or topic to plan targeted drills with surgical precision.

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Spaced Repetition Learning

Short, manageable weekly assessments use scientifically-proven spaced repetition to ensure critical safety knowledge is retained long-term, not just memorised for a test.

What Fathom Delivers

Compliance

  • Auditable, time-stamped record of crew competence satisfying ISM 1.2.2.3
  • Continuous proof of due diligence for owners, auditors, and insurers
  • Targeted training guided by real performance data

Safety Culture

  • Every crew member can recall procedures and locate equipment under pressure
  • Continuous engagement reduces costly human error incidents
  • #FathomFriday makes safety a positive, regular onboard routine

Operational Efficiency

  • Structured digital onboarding accelerates new crew readiness
  • Incorrect answers flag potential manual discrepancies for review
  • Investment in crew competence improves retention and reduces turnover
"This is astonishing. The results speak for themselves and focus the company on where they need to apply their attention. It's excellent."
— Designated Person Ashore (DPA), reacting to a yacht's Fathom monthly safety report

See the Future of Familiarisation

Fathom empowers you to go beyond minimum compliance — building a crew that is knowledgeable, confident, and genuinely prepared.

Book a Fathom Demo