AMSA Electro-technical Officer (ETO)

AI-drafted catalogue content pending SME review. Sea service and course requirements change; verify with AMSA before relying on this for a career decision.

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AUS-ETO-M1 · The Certificate

4 lessons

AUS-ETO-M1-A A branch, not a rung — and the most yacht-relevant ticket AMSA issues Practice in examiner →

AUS-ETO-L1.1

What the certificate lets you do — and why it is not a promotion

This lesson explains the ETO's scope of entitlement — unlimited by propulsion power or operating area — and why the certificate represents a lateral move into a specialist electrical discipline rather than a step above Engineer Class 1.

AUS-ETO-L1.2

The two doors in

You must be **at least 18**. Beyond that, the ETO has a prerequisite limb that is unusual in the Australian system: you satisfy it in one of two completely different ways.

AUS-ETO-L1.3

The sea service, and the asymmetry that should decide your life

Once you are through one of the two doors, you must complete **one** of the following two routes. They are not equivalent, and the difference between them is not marginal.

AUS-ETO-L1.4

The Training Record Book, the medical, revalidation — and what AMSA does not publish

This lesson covers the Training Record Book's live-signature requirement, the difference between company and master sea-service letters, the AMSA form 303 medical rules, the five-year revalidation routes, and why no AQF course code exists for STCW engineer certificates.

AUS-ETO-M2 · Power

3 lessons

AUS-ETO-M2-A Generation, distribution and the switchboard that will kill you Practice in examiner →

AUS-ETO-L2.1

Generation, paralleling, load sharing and blackout recovery

This lesson covers how on-board generation differs from shore power, the three conditions required before paralleling an alternator onto a live bus, how governors and AVRs control real and reactive load sharing, and the step-by-step sequence for blackout recovery.

AUS-ETO-L2.2

High voltage — permits, isolation, proving dead

This lesson covers the line between low and high voltage on marine vessels, the ordered isolation sequence underpinning a high-voltage permit to work, and the hazards — arc flash, residual capacitance, and standing earth faults — that make each step non-negotiable.

AUS-ETO-L2.3

Power electronics — VFDs, converters, harmonics and the dirty power a yacht makes

This lesson explains how variable frequency drives convert and re-invert AC power, where each internal stage fails, and why the combined harmonic distortion from drives, switch-mode supplies and HVAC plant makes a yacht's electrical supply particularly hostile to sensitive equipment.

AUS-ETO-M3 · Control

3 lessons

AUS-ETO-M3-A Automation, alarms and networks Practice in examiner →

AUS-ETO-L3.1

Automation and control systems — PLCs, loops and tuning

Almost nothing aboard a modern vessel is operated directly any more. A pump does not start because someone pressed a button; it starts because a controller compared a measured value with a setpoint and decided it should. Between the operator and the machinery there is now a layer of logic, and that layer is the ETO's.

AUS-ETO-L3.2

Alarm management — and the inhibited alarm nobody wrote down

This lesson explains what makes an alarm genuinely useful, how alarm floods defeat their purpose, and why the most dangerous hazard in any alarm system is an inhibit that was never logged, never bounded, and never removed.

AUS-ETO-L3.3

Onboard networks, integrated systems and cyber hygiene

An integrated system is a set of independent machines that have been persuaded to talk. The alarm and monitoring system, the power management system, the drives, the HVAC controller, the bridge and the entertainment system all exchange data. The convenience is enormous. The failure modes are new.

AUS-ETO-M4 · The Yacht

2 lessons

AUS-ETO-M4-A Where the ETO actually earns the money Practice in examiner →

AUS-ETO-L4.1

The yacht as a power station

Take a merchant ship of a given length. Its electrical plant exists to serve the ship: pumps, steering, lighting, some accommodation. The propulsion power dominates everything. The generators are a support act.

AUS-ETO-L4.2

Fault-finding under pressure — the discipline of not guessing

A bad ETO reaches for the thing they fixed last time. It worked once, so it becomes a habit, and the habit works often enough to survive. Then one night it does not, and they change a component that was healthy, and now they have two faults and no idea which is which.

Aligned to the published AMSA requirements and the relevant Marine Orders. Official source (AMSA).

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