First HH88 Nears Completion The flagship of HH Catamarans is the HH88 sailing cat and it is nearing completion. This is the first hull of the 88-foot model. The yacht is anticipated to be launched in late Summer and be delivered this year to its owner. Its construction is fully-carbon and the vessel measures approximately 26.8-meters. The mast is carbon as well and will support 246 sqm of mail sail.