Third US Training Ship State of Maine Delivered to MARAD

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Category: Enseñanzas náuticas, formación, cursos
Published on Saturday, 07 March 2026 05:53
Written by Administrator2
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State of Maine has been handed over after her naming ceremony in August 2025 (Maine Maritime)

Published Mar 6, 2026 8:42 PM by The Maritime Executive

 
 The third newly built U.S. training ship for the merchant marine, the State of Maine, was handed over to TOTE Services and delivered to the U.S. Maritime Administration. It will be the fifth training vessel, and the first purpose-built vessel, to be operated by the Maine Maritime Academy, located in Castine, Maine.

The handover to the U.S. government took place at the Hanwha Philly Shipyard, and the vessel is scheduled to depart for Maine in the coming days. Once it arrives in Portland, Maine, there will be an official arrival ceremony and formal handover

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Gestión del Dominio Público Marítimo Terrestre

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Category: Enseñanzas náuticas, formación, cursos
Published on Saturday, 28 February 2026 23:23
Written by Administrator2
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El Dominio Público Marítimo Terrestre (DPMT) es la única categoría de bienes de dominio público estatal español directamente individualizada por la propia Constitución de 1978, sin dejarlo en manos del legislador ordinario.

La Constitución señala que la zona marítimo-terrestre, las playas, las aguas interiores, el mar territorial y los recursos naturales de la zona económica y la plataforma continental son bienes del DPMT, y la Ley de Costas precisa estos conceptos.

Bienes tan valiosos y anhelados por todos como las playas, las dunas, los escarpes, las bermas, los acantilados, las marismas, los humedales litorales, etc, son de DPMT, tanto para su protección, como para su garantía de disfrute público.

Todos debemos tener garantizado el derecho de disfrute de estos bienes del DPMT eso sí, con usos adecuados, que ni comprometan su integridad

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Maritime Labour Convention : 20 years of advancing social dialogue and decent work at sea

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Category: Enseñanzas náuticas, formación, cursos
Published on Thursday, 26 February 2026 07:02
Written by Administrator2
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23 February 2026

 
 
Nautilus general secretary Mark Dickinson (centre) acted as spokesman for the seafarers' group in his role as ITF seafarers' section vice chair during the MLC amendment negotiations in Geneva in April 2025. Image: ILO

Joint statement from the International Labour Organization, the International Chamber of Shipping, and International Transport Workers' Federation on the 20th anniversary of the Maritime Labour Convention 

On the 20th anniversary of the Maritime Labour Convention (MLC), 2006, we jointly reaffirm our commitment to the principles and protections it embodies and recognise the profound impact it has had on seafarers and on global shipping.  

The MLC consolidated and modernised around 70 maritime labour instruments into a single, comprehensive international framework. In doing so, it established enforceable minimum standards for wages, hours of

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Propeller Slip: Seafarer Tips and Tricks to Know

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Category: Enseñanzas náuticas, formación, cursos
Published on Thursday, 26 February 2026 08:57
Written by Administrator2
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What apparent and real slip tell you about engine load and ship performance

 

QUICK ANSWER: PROPELLER SLIP AT A GLANCE

What is slip?
• The difference between how far a propeller should move forward per revolution and how far it actually does
• Because water yields and accelerates aft, the propeller never fully converts each turn into forward motion
• There are two types: apparent slip (based on ship speed) and real slip (based on the actual water speed arriving at the propeller)
• At a quay trial with zero ship speed, both slip ratios equal 1.0 — meaning 100% slip

Why it matters:
• Slip is a direct indicator of propeller load — the higher the slip, the higher the load
• Rising slip means the engine works harder for the same speed, burning more fuel
• Uncontrolled

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Reefer Engineer Essentials: System Operation Tips

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Category: Enseñanzas náuticas, formación, cursos
Published on Saturday, 14 February 2026 07:39
Written by Administrator2
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Refrigeration cycles, equipment tricks and troubleshooting tactics

QUICK ANSWER: REEFER REFRIGERATION ESSENTIALS

The Four-Stage Refrigeration Cycle:
• Compression – raises vapor pressure from low to high, enabling heat rejection
• Condensation – converts high-pressure vapor to liquid by removing heat
• Expansion – drops liquid pressure to enable evaporation at low temperature
• Evaporation – absorbs heat from cargo space as liquid becomes vapor

Critical System Components:
► Compressor: Reciprocating (most common) or screw type for vapor compression
► Condenser: Shell-and-tube water-cooled or air-cooled with fans for heat rejection
► Expansion Valve: Thermostatic type maintains 5°C superheat at evaporator outlet
► Evaporator: Tube coil absorbs cargo space heat through refrigerant evaporation
► Receiver: Stores liquid refrigerant between condenser and expansion valve

Superheat and Sub-Cooling Basics:
• Superheat ensures only vapor enters compressor (prevents liquid damage)
• Normal superheat range: 5°C to 10°C at evaporator outlet
• Sub-cooling ensures 100% liquid flow to expansion valve (prevents vapor formation)
• Occurs in condenser and liquid line before expansion

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