Shafting System in Ships — Components, Alignment & Failures
The shafting system in ships connects the main engine to the propeller, transmitting torque and thrust. Proper alignment and maintenance ensure efficient, vibration-free propulsion.
Marine Systems
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What Is a Ship Main Engine?
A ship main engine powers propulsion by burning fuel in cylinders, driving pistons and crankshaft. Learn about its types, components, fuels, safety, and regulations in shipping.
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What Is a Ballast System on a Cargo Ship?
A cargo ship’s ballast system manages seawater intake and discharge to stabilize trim, list, and draft—crucial for safety, fuel efficiency, and legal compliance.
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Oil Tanker Cargo Handling Systems and Equipment Explained
How oil tanker cargo handling works: pumps, pipelines, inert gas, venting, overfill alarms, crude oil washing and heating, with the SOLAS and MARPOL rules.
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Ship Blackout at Sea: SOLAS Bridge Procedures Explained
A power outage is among the worst issues for maritime professionals. What happens if a ship loses power?
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What is a Ballast Water Treatment System?
What a ballast water treatment system does, how filtration, UV and electrochlorination work, the IMO D-2 standard, required documents and PSC checks.
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Propeller Cavitation: Causes, Effects, and Prevention
Propeller cavitation is a phenomenon that can cause significant damage to a ship’s propeller and reduce its overall efficiency.
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What Is a Crankcase in an Engine?
A marine engineer’s guide to crankcase structure, lubrication, and the SOLAS rules behind crankcase explosion relief valves and oil mist detectors on ships.
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What is the CII and the CII Rating Scheme? A Clear Explanation
The Carbon Intensity Indicator (CII) is a measure of how efficiently a ship transports goods or passengers and is given in grams of CO2 emitted per cargo-carrying capacity and nautical mile. The International Maritime Organization (IMO) developed the CII as a rating system for ships, which will be a mandatory measure under the MARPOL Annex…
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Dual-Fuel Engines on Ships: Types, Fuels, Regulations, and Retrofit
A dual-fuel engine burns two fuels — a gaseous primary fuel and marine diesel as the pilot charge or fallback mode. The technology has shifted from a niche solution for LNG carriers to the dominant propulsion choice for new container ships, cruise vessels, and tankers. MARPOL Annex VI Regulation 13 NOx limits and the IMO…