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EXPLORE TOP SHIPS

Technology & Eco Design

Hull, propulsion and onboard systems — working together across the tanker fleet.EXPLORE ↓
ECODesign-led fleet approach
MRProduct / chemical tankers
SUEZMAX / VLCCCrude oil tanker categories

A modern tanker is more than its carrying capacity. Its performance is shaped by the relationship between hull form, propulsion, cargo systems, auxiliary equipment and the way the vessel is operated. The TOP SHIPS fleet information brings these elements together through published ECO design characteristics and separate technical profiles for MR and crude oil tankers.

Hull, machinery and cargo systems each contribute to the vessel’s intended service. Understanding how they work together makes the fleet’s technical specifications more useful: a reader can connect an equipment name with its role in propulsion, cargo handling, environmental management or operational efficiency.

The published ECO design characteristics describe latest ECO G-type engines and a fleet of Hyundai-built vessels. The MR profile lists an electronic G50ME main engine, while the crude oil tanker profile lists a full electronic G70ME-C main engine. The two profiles reflect the machinery arrangements described for these different tanker categories.

An efficient propulsion arrangement considers the engine, propeller and water flow around the hull as a connected system. The published profiles include a larger propeller and a Mewis duct for MR tankers, and a rudder bulb and pre-swirl duct for crude oil tankers. Such components are designed to improve the flow of water through and around the propulsion system. Their realised performance depends on installation, condition and operating circumstances.

Hull surface condition is another part of the same picture. Reduced-friction or reduced-resistance painting is listed in the fleet profiles. A smoother underwater surface can help limit resistance. Hull coatings therefore form part of a wider approach that also includes propulsion design, maintenance and the condition of the vessel during service.

Read the MR profile ↗
01

Autopilot & monitoring

Eco autopilot and performance monitoring appear in the published profiles. Monitoring provides a basis for understanding how a vessel is performing; operating teams can use that information alongside weather, speed, loading and machinery condition. The crude oil tanker profile describes real-time office monitoring.

Crude oil tanker profile ↗
02

Cooling & auxiliary systems

The MR profile lists an energy-saving cooling sea-water system. Efficient operation also involves equipment beyond the main engine: pumps, electrical generation and other services contribute to the vessel’s overall energy demand.

03

Exhaust energy

Exhaust gas use optimisation is listed for both tanker profiles. It draws attention to the opportunity to use energy available in the exhaust stream, as part of the vessel’s wider machinery arrangement.

Design and operation work together. The published Energy Efficiency Management Policy calls for design optimisation, in-service performance monitoring and best-practice operational management. It also describes personnel training and regular review of energy-management procedures.

01

Exhaust gas cleaning

The crude oil tanker environmental profile lists an SOx scrubber. Exhaust gas cleaning systems address sulphur oxides in exhaust gases. Sulphur oxide control and energy efficiency address different aspects of environmental performance. Exhaust gas cleaning targets air pollutants, while propulsion and operating efficiency concern the energy used to provide the vessel’s transport service.

02

Ballast water treatment

Ballast water supports vessel stability and trim. Treatment addresses the risk of transferring aquatic organisms and pathogens between marine environments. Ballast water treatment is included in both published tanker profiles.

03

Materials & classification

The profiles refer to no halon or asbestos onboard, EEDI certification and environmental class notations. These are separate technical references with different purposes. Vessel-specific records remain the appropriate source for the exact scope and validity of any notation or certificate.

For independent background, the International Maritime Organization explains exhaust gas cleaning and sulphur emissions and ballast water management.

The published ECO design overview describes a high-specification approach, including options above the yard’s basic specification and phenolic epoxy cargo-tank coatings. It also refers to the ability to carry a wider range of cargoes through an IMO II arrangement. Cargo compatibility remains a vessel-specific technical matter and depends on the applicable approvals and condition of the cargo systems.

The MR equipment profile lists six cargo groups, cargo pumps, slop tanks and a residue arrangement. The crude oil tanker profile lists three cargo groups and its own pumping and tank arrangements. These details help explain why tanker capability cannot be understood from deadweight alone. Cargo segregation, pumping capacity and coating suitability all contribute to the vessel’s intended service.

The operating fleet includes product / chemical tankers and crude oil tankers. Their different services are reflected in their cargo arrangements, machinery requirements and technical profiles.

Explore vessel particulars ↗
What does ECO design mean here?+

It describes the design approach and equipment characteristics published by TOP SHIPS, including hull, propulsion and energy-efficiency features. The individual features can be explored in the MR and crude oil tanker profiles.

Are all the same systems installed on every ship?+

The published material separates MR and crude oil tanker profiles. This overview explains those category-level profiles. The Fleet list provides individual vessel particulars, while the technical sections provide the wider specification context.

How is EEDI different from actual voyage performance?+

EEDI is a design-related energy-efficiency measure. Actual operation is affected by loading, speed, weather, maintenance and other conditions. Design efficiency and operating practices therefore complement each other.

CONTINUE EXPLORINGSustainability & responsibility ↗