A vessel with two tiers of oars was/is a bireme.
A ship with two banks of oars was called a bireme.
An ancient ship with two banks of oars was called a bireme from the Latin word biremis meaning two-oared.
An ancient ship with two files of oarsmen was called a bireme. It's also a term sometimes used to designate a vessel with two men on each oar.
BIREME
The basic ancient warships could be called either a monoreme, a bireme, or a trireme. This was determined by the levels of oars---maybe. The history of the ancient ships is clouded as there is very little written material about them and even less accurate depictions. Historians wrangle about whether the numerical prefex,(bi, tri,quad, quinc) refer to the levels of oars or to the number of rowers on each oar.
Well, seeing as they were vikings, they used oars to row the boat. <><><> A But mainly by sails,
Either by a rectangular single sail, or by oars, or both.
Probably the trireme. It was a ship with three rows of oars and around 170 crew members It could reach up to 14 knots but its average speed was 8 knots. It was first seen in Cornith 700 BC.
The Viking longboats were long, open boats that had many sets of oars used to row the ships close to shore, or in calm winds. They used large square sails for long voyages.
Bireme
An ancient galley with two banks of oars is called a bireme.
slave ship
Bireme
ancient type of ship driven by oars
ancient type of ship driven by oars
An ancient vessel with two banks of oars was called a bireme.
galley
The Trireme was a warship powered by three tiers of oars with a ramming projection in the bow.
A bireme is an ancient galley with two banks of oars, one above the other.
An ancient ship with two banks of oars is called a "bireme".
A Greek word for a Galley, a vessel developed as a warship, with three rows of oars. The Latin word is Triremis, as in Tri for three, and Remus for Oars