HD Hyundai HI (HHI) (Hayfin 2)

Specification

HD Hyundai Heavy IndustriesSouth Korea · delivered 2029

Not reported

Stakes exactly as GEM reports them for this vessel.

Vessels from the same yard, delivered the same year, with the same cargo capacity to the nearest 1,000 m³. A shared design is likely but not certain.

Vessel	IMO	Status	Capacity	Containment	Propulsion
HD Hyundai HI (HHI) (Hayfin 1)	—	Under construction	174,000	Not reported	Not reported

Background on the technology and the terms used on this page.

LNG carrier anatomy
An LNG carrier is a ship built around insulated cargo tanks that hold liquefied gas at minus 162 degrees, with an engine able to burn the cargo vapour that inevitably boils off during the voyage.
Ship classes: conventional, Q-Flex, Q-Max and small-scale
LNG carriers fall into recognised size classes running from small-scale vessels under 30,000 cubic metres, through the 174,000 cubic metre conventional standard, to the 266,000 cubic metre Q-Max ships built for Qatar.
Boil-off and reliquefaction
Boil-off is the small fraction of an LNG cargo that evaporates each day as heat leaks into the tanks, and it is what keeps the rest of the cargo cold.
The voyage cycle: laden, ballast, heel and the return
The LNG voyage cycle is the round trip of a laden leg carrying cargo and a ballast leg returning empty, with a small heel of LNG retained throughout to keep the tanks cold enough to load again on arrival.