LNG feeder vessel

Class overview

Feeder vessels collect LNG from a large import terminal, transhipment hub or FSU and redistribute it to smaller terminals that ocean-going carriers cannot serve. Depending on parcel size and trade pattern, feeders are built with Type C pressure tanks or with small membrane tanks, so their behaviour on boil-off and holding time differs considerably between designs.

Classification

Operational role

LNG Feeder Vessel

Containment system

Type C Pressure Tanks · Bi-Lobe Type C Tanks · GTT Mark III Membrane

Tank geometry

Bi-lobe Type C pressure vessels, or small membrane tanks on larger feeders

Capacity class

Mid-scale — indicative: approximately 30,000–100,000 m³

Propulsion options

DFDE / TFDE · X-DF

BOG management

BOG as fuel · Reliquefaction

Key systems

Operational environment

Shuttle service between a large import or storage location and smaller regional terminals.

Safety and operational considerations

• Short voyages mean cargo conditioning and cooldown cycles occur often.
• Terminal compatibility varies between the hub and the served ports.
• Schedule pressure makes structured transfer procedures particularly important.