Multi-Grade Gas Carriers

Flexible tonnage for a changing gas market.

Altair Gas Carriers is developing multi-grade vessels designed to move between LPG, ammonia, NGLs and CO₂, giving charterers greater cargo flexibility and asset utilisation.

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The proposition

One vessel. Multiple cargo opportunities.

Altair's approach is built around flexibility: a vessel capable of adapting to changing cargo demand can remain commercially relevant across different market conditions rather than being tied to a single grade.

Ammonia

Flexible shipping capacity for established ammonia flows and emerging low-carbon supply chains.

NGLs & Olefins

Access to growing tonne-mile demand and multiple regional trade opportunities.

Reliable Tonnage

Cargo flexibility is intended to support vessel utilisation through changing market cycles.

Technology

Designed around rapid grade change.

Altair's patented VECS concept is intended to simplify the transition between cargo grades through an engineered displacement and recovery process.

24hTarget grade-change cycle

4+Cargo grades addressed

1Flexible vessel platform

Discharge

Release bladder

Fill with nitrogen

Vacuum out

Apply heat

Load new cargo

Engineering & validation

Technology developed for commercial application.

The technology pathway combines testing, class engagement and engineering development to move the concept toward vessel-scale implementation.

The vessel concept is designed around multi-grade capability across LPG, ammonia, NGLs and CO₂.

Markets & trade

Connecting flexible tonnage with global demand.

Altair is targeting established and emerging gas corridors where flexible vessel capability can support cargo owners and charterers.

India → Europe

A long-haul corridor connecting Indian supply with European demand and triangulation opportunities.

US Gulf → Atlantic Basin & Med

A major production region with access to Atlantic Basin and Mediterranean markets.

MEG → Europe

A strategically important corridor with established gas infrastructure and broad destination flexibility.

Fleet development

From technology validation to commercial scale.

Altair's programme is structured to take the technology from validation and commercial development through fleet build-out and operations.

Engineering programme

A platform built for repeatable deployment.

The development programme brings together tank, process and vessel engineering with class and commercial stakeholders.

Altair Gas Carriers

Let's discuss the opportunity.

For chartering, cargo and commercial enquiries, contact the Altair Gas Carriers team.

Contact Altair →