Seguridad marítima

Manoeuvrin 2n grade



1. The suction of the propeller will increase the velocity of the water from v0 till v1, until the water reaches the propeller

2. Because of the increase in speed the pressure will reduce from p0 to p1

3. The propeller will pass energy to the water, the velocity has already

increased, therefore the supply of energy will effect an increase in pressure: p2

4. After the water has passed the propeller, the water pressure in the propeller wake will reduce again to the pressure of the surrounding water. p3=p0

5. As a result the velocity of the water will increase from v1 to v2. The propeller wash will contract, rotating and will cause an even spread of the water flow along the rudder surface




New rules make lifeboats safer





Navim Group provided the davits for Costa Venezia

Safety of Life at Sea: COVID-19 and Naval Operations





 maritime executive

USS Theodore Roosevelt at Guam (U.S. Pacific Fleet)

BY THE LOWY INTERPRETER 04-20-2020 02:05:47



[By Dr. Sam Bateman]

The potential impact of COVID-19 on naval operations has been highlighted by reports that over half of the 2,000-plus sailors aboard the French carrier Charles de Gaulle have tested positive for COVID-19. The ship left a NATO exercise ten days early and returned to port in Toulon to allow disembarkation of sick crew members and sanitization.

The U.S. Navy has experienced similar challenges with outbreaks of varying size on four carriers – the USS Ronald Reagan (at Yokosuka), USS Nimitz (at Bremerton), USS Carl Vinson (at Bremerton), and USS Theodore Roosevelt in port at Guam. The outbreak of Covid-19 onboard the Theodore Roosevelt with more than 600 confirmed cases and one sailor dying had major

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Protecting seafarers and the global supply chain during Covid-19






Professor Thomas Peacock is a member of the UN Global Compact Task Force urging coordinated international response for offshore and shipping industries.

Mary Beth Gallagher | Department of Mechanical Engineering

May 12, 2020

The offshore and shipping industries are grappling with unique challenges in the face of the Covid-19 pandemic. The virus’ rapid spread on ships like the Diamond Princess and USS Theodore Roosevelt highlighted the health risks that the 1.2 million workers currently at sea face. Travel restrictions and closed borders offer an additional challenge by not only disrupting the global supply chain, but preventing scheduled crew changeovers from taking place.

To address these issues, the UN Global Compact Action Platform for Sustainable Ocean Business

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Arctic Council Releases Guideline for Arctic Marine Risk Assessment



Source: Arctic Council

BY THE MARITIME EXECUTIVE 04-18-2020 07:17:46



The Emergency Prevention, Preparedness and Response (EPPR) Working Group of the Arctic Council has released a Guideline for Arctic Marine Risk Assessment. 

The guideline contains best practice methods and data sources for conducting regional and area-wide risk assessments concerned with ship traffic and operations in the Arctic. This Guideline applies the risk management process as defined in ISO 31000:2018 and uses the six steps of risk management process with some customization to fit the objective of capturing the Arctic risk influencing factors.

Marine risk assessments were, until now, conducted based on information on generic conditions and risk factors found in waters around the world, says the EPPR. 

“Operating in Arctic waters

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