The trireme the first major warship 
skeletal structure and the planking of the Greek triremes. biremes The Greeks perfected the Phoenician and As were used for war, they realized the importance of achieving greater speed and maneuvering power. At that time the rig to sail was in its infancy, the most secure and manageable to achieve this was to increase the propulsive power rowing.
In these circumstances, the idea of \u200b\u200bincreasing the number of oars on each order or line was not viable, and that led inevitably to increase the length of the boat and beyond 40 meters, the teachers of Greek banks had no solution to build a resistant helmets grief caused by waves. About the year 525 BC, wrote the first literary quotes relating to what is called trireme: it was a galley with three tiers of oars on each side and that in the beginning, had only one rower per oar. Despite being the ship's galley that has been written and talked much until today, really do not know exactly all the elements of its design and operation. Unlike bireme, this new hall provided a second spur above near the waterline, and was shorter than this. The purpose of this additional appendix was to enlarge the breach in the hull of the boat that received the charge, as these terrible ends, lined with bronze and often decorated with representations of heads of wild beasts, they were really destructive in the case of a frontal attack.
The size of the triremes increased significantly in comparison to biremes, and got to measure 37 meters in length by almost 6 wide. On the disposition of the rowers there are many opinions, but it seems a fact accepted by most in the top row or tranite 64 is used to rowing have about 4.3 m long, on average, or zygia of 54 oars of 3.2 m, and the bottom row or thalami had between 50 and 54 paddles of about 2.3 m. The coxswain sits in the stern and ruled the sculls handled by a crossbar that joined them.
The ability of experts Greek rowers (free citizens who were paid for their work) was remarkable. Cadence rowing with assault could lead to the development speeds up to 6 knots for 20 minutes, the normal cruising speed was around 3 knots depending on sea conditions and wind direction. According to Xenophon, a distance of 129 miles meant a "long day" for a trireme. But the more precise reference cruising speed could be as high without a sail a trireme is known thanks to a specific historical event: the impromptu race carrying the gallery held a pardon for the men of Mytilene against carrying his death sentence and had sailed before. The crew did not stop for a moment: they ate bread barley mixed with wine and olive oil, while rowed with all his might. They were fortunate to find no contrary winds and were able to cover 184.5 miles in approximately 24 hours, which shows the high cruising speed (7.6 knots), which might be to develop the triremes.
The sailing rig was used to propel the craft on long journeys. It consisted of a tall pole located just forward of the center of the ship, sometimes beat down the oar and sail most of the fighting. The sail was square with one cock, was guided and loaded with arms and long by BRIOLES. A top of the mast was carrying a crow for lookouts and archers. Eventually appeared dolon the bow, a small stick and leaning forward, which takes off a small square sail.
In the stern deck of the poop, we will open four holes aligned as shown in the picture. Then we set a pulley block and three strap lugs. Perform the same operation on the other side of the hull. About 
layer fogonadura the mizzen (in the back of the helmet), drilled six holes distributed as shown in the picture. After four slings look pulley block and two eyebolts with quick-drying glue. 
side next to the hole for the mast (the middle of the cover), will open the necessary holes and set five straps of pulley block and three lugs. 
pulley block strops will post five and three lugs with glue distributed as shown in the picture. 
With a drill and a drill of 0.75 mm in diameter, drilled eight holes in the sides of the bottom layer of the ratchet fogonadura, as shown in the picture. Remember that the stick is the ratchet is located in the front of the main housing. 
cojemos a pulley block are the pieces that have two holes. Put it on the wire so that its holes coincide in the same direction as the ring of the eyebolt. We will make another overhand knot so that the thread embraces the pulley block. The line tight so that the piece is secure. Apply glue to prevent the knots loose. Then cut the excess single thread block. 
Cojeremos crude thread diameter of 0.15 mm and an eyebolt for the straps of pulley block, cut a piece of wire about 100 mm in length. Insert one end of thread into the ring of the eyebolt. We will make a simple knot distributing the excess wire as shown in the picture. 
recovered the iron 
