Scores are relative 0–100 marks within this atlas. Use them to browse, not as an engineering spec.
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Quick answers
Which local authority or corridor rules matter for this type?
Start with the local lens: type approval, operator licences and the hubs named on this page — not a single global checklist.
Is this a buying guide?
No. Tool-Lifes /vehicles is an educational atlas. It explains history, systems and culture without affiliate rankings.
Are the scores official?
No. The six scores are relative editorial 0–100 marks across the twenty-four types on this site.
Where do the photos come from?
Lead images resolve from Wikimedia Commons via Wikipedia titles on the English masters, with licences recorded on the credits page.
Why metric units?
Metric is the default. Regional notes (US customary, local brand culture) appear in culture and market chapters.
How is this different from a wiki article?
Each type gets seven fixed-depth chapters, comparable scores and cross-type labs — structured for browsing, not a single freeform page.
Every Container ship is a negotiated stack of structure, energy conversion, control and human interfaces under weather and regulation.
The systems, meters and hotspots below are type-level engineering — manufacturers vary; load paths and failure modes do not.
Teaching silhouette with numbered systems — type-level, not a specific model tear-down.
Systems
Cellular hold & lashing
Vertical cell guides and twist-lock fittings stack ISO containers in a rigid grid. Lashing bridges and turnbuckles tie stacks against rolling and pitching seas.
Main engine & CPP
Two-stroke slow-speed diesel turns a controllable-pitch propeller through a long shaft line. Fuel racks and pitch commands trim rpm for slow-steaming or weather routing.
Ballast & stability
Double-bottom and wing tanks adjust trim and list; stability software limits GM during discharge. Ballast water treatment meets port-state exchange rules.
Bridge ECDIS & AIS
Electronic chart display, radar overlay, and AIS transponder feed voyage planning and collision avoidance on open ocean lanes.
Reefer & power sockets
On-deck reefer plugs and monitoring maintain cold-chain TEUs; alarm loops flag failed compressors before cargo spoils.
Mooring & cargo cranes
At berth, container cranes or ship gear (on smaller feeders) set spreader pace; winches and bollards handle surge loads from swell.
Relative meters
Hotspots
Twist-lock fatigue
Corroded or bent locks fail under stack acceleration, risking container overboard in heavy seas.
Main bearing lube
Low oil pressure or contaminated HFO can trip slow-speed engine shutdown mid-ocean.
Shaft seal wear
Sterntube leakage raises pollution risk and misaligns propeller thrust.
Reefer alarm fatigue
Ignored plug faults ruin perishable loads before arrival surveys.
Ballast pump valves
Stuck valves cause list during discharge and may violate stability limits.
Materials
AH36 hull steel
High-strength ship plate resists hogging and sagging in long open-deck spans.
Corten lashing gear
Weathering steel fittings survive salt spray with minimal maintenance.
Marine HFO / VLSFO
Residual fuels power slow-speed plants; scrubbers or low-sulfur blends meet ECA rules.
Mn-bronze propeller
Large fixed or CPP blades balance cavitation margin with fuel economy.
Keep exploring
More in Sea
Cruise ship
Floating resorts built for itineraries, not point-to-point migration.
Overall 47 ⛴️Ferry
Scheduled water links for people and vehicles across straits and islands.
Overall 59 ⛵Sailboat
Wind-driven hulls from dinghies to ocean racers — sport, cruise and heritage.
Overall 53 🛟Submarine
Vessels designed to operate submerged — naval power and research platforms.
Overall 46 🛢️Oil tanker
Tank ships that move crude and products — the liquid spine of global energy trade.
Overall 45 🛳️Aircraft carrier
Floating airfields that project naval air power across oceans.
Overall 50 🧊Icebreaker
Ships built to crush and ride over ice — keeping polar and winter ports open.
Overall 43 🚤Tugboat
Compact high-thrust harbour craft that push, pull and pivot ships many times their size.
Overall 45 🚢Bulk carrier
Single-hold freighters for dry bulk — ore, coal, grain and cement — distinct from tankers and boxships.
Overall 49