The trireme (Greek triiris),was the devastating warship which permitted Athens to build her maritime empire and dominate the Aegean in the 5th century BCE.
The trireme was so-called because of the arrangement of rowers in three lines down the length of each side of the ship. The total number of rowers could have been between 170 and 180, allowing a speed of as high as nine or ten knots in short bursts. Each oarsman had a fixed seat (and leather or wool cushion) and the rowers were arranged with 31 on the top row (thranoi), 27 in the middle (zygoi) and 27 on the lowest level (thalamoi). The principal weapon of the trireme was the bronze-sheathed battering ram affixed to the prow. These often took the form of animals, for example, the head of a goat. The project based on various schematic i found on internet.Thanks and enjoy.