A cog is a type of ship that was used during the Middle Ages, mostly for trade and transport but also in war. It first appeared in the 10th century, and was widely used from around the 12th century onward.

Jan 9, 2025 · The cog is a single-masted, clinker-built vessel characterized by its high sides, flat bottom, and pronounced stern and bow castles. Designed primarily for trade, it offered ample cargo space and a sturdy structure capable of withstanding the challenging conditions of the North and Baltic Seas.

A cog ship refers to one of those ships that were invented in the middle ages. Developed by the ship builders of Northern Europe, cogs were extensively used in the Baltic Sea region. Cogs are spacious ships with only one large mast that holds a single square sail.

Dec 12, 2024 · The cog is a type of ship that appeared in the medieval period in the 10th century and it was widely spread across the sea into the 12th century. It was mainly made from oak and the particular timber that could be found in the Baltic region of Prussia.

The Bremen cog is a well-preserved wreck of a cog dated to 1380, found in 1962 in Bremen. Today, it is displayed at the German Maritime Museum in Bremerhaven as one of the main features. Three nearly identical replicas of this cog have been built: Ubena von Bremen, Hansekogge, and Roland von Bremen.

A cog (or cog-built vessels) is a type of ship that first appeared in the 10th century, and was widely used from around the 12th century on. Cogs were generally built of oak, which was an abundant timber in the Baltic region of Prussia.

One reason for the success of the Hanseatic League was the use of a new type of ship: the cog. The cog developed towards the end of the 12th century. It was a bulbous, single-masted cargo ship with a square sail, stern rudder and a flat bottom that allowed it to call at shallow waters.

Aug 1, 2024 · Speed Over Ground (SOG) and Course Over Ground (COG) are two important aspects of navigation for a sailboat. SOG is the speed of a boat relative to the Earth’s surface, taking into account external factors like wind, currents, and tides.

rowboat, boat propelled by oars alone, probably the most common type of boat found around waterfronts and at most fishing camps and docks on inland waters. A true rowboat or sculling boat has an easy motion through the water and, most important, glides between strokes.

Sep 24, 2024 · 1 An early coastal merchant ship. ‘The consensus is that the cog, which began as a small flat-bottomed coaster in the 10th century, or earlier, was developed by the Germans, perhaps out of the Rhine, and had become by 1400 a ship of 200 tons or more, 90 or more feet (27 metres) long and 30 or more feet (9 metres) in the beam …