From BRWiki
The Cog "Leivika"
Cogs (or rather cog-built vessels) are ships that fit in the era of medieval technology, and are widely used by cultures at that level of technology. They may be used by cultures in the subsequent level of technology (renaissance), but they are generally older vessels, or are constructed by low skill shipbuilders. The cog is a development of the knarr and is superior to the roundship.
Cogs are generally built of oak, which is an abundant timber throughout most of Cerilia. This vessel is fitted with a single mast and a square rigged single sail. Even though this type of rigging prohibits sailing into the wind, it can be handled by a smaller crew, which also reduces operational costs. This vessel is a capable sea-going vessel.
Cog: Colossal vehicle; Seaworthiness +3; Shiphandling +0; Speed wind x 20 ft (poor); Overall AC -3; Hull Sections 16 (sink 4 sections); section 80 hp (hardness 5); Section AC 3; Rigging Sections 1; Rigging hp 60 (hardness 0); AC 1; Ram 4d6; Mounts 1 light and 1 heavy; Space 40 ft x 20 ft; Height 10 ft (draft 10 ft); Compliment 20; Watch 4; cargo 60 tons (Speed wind x 10 ft 30 tons or more) cost 6,000 gp.
