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John Francis Coates, OBE (30 March 1922 – 10 July 2010) was a British naval architect best known for his work on the study of construction of the Ancient Greek trireme.His research led to the construction of the first working replica of triremes, the fastest and most devastating warship of Classical Mediterranean empires, and gave a greater understanding of how they were built and used.
The trireme derives its name from its three rows of oars, manned with one man per oar. The early trireme was a development of the penteconter, an ancient warship with a single row of 25 oars on each side (i.e., a single-banked boat), and of the bireme (Ancient Greek: διήρης, diērēs), a warship with two banks of oars, of Phoenician ...
The bireme was twice the triaconter's length and height, and thus employed 120 rowers. Biremes were galleys, galleasses, dromons, and small pleasure crafts called pamphyles. The next development, the trireme, keeping the length of the bireme, added a tier to the height, the rowers being thus increased to 180. [4] It also had a large square sail.
The trireme was a fast attack, light displacement vessel. In order to sustain the bending moments of her considerable length, a tightened rope (hypozomata) was mounted beneath the deck spanning from bow to stern. This was an ingenious way to increase rigidity of the hull. Today in modern construction it is called pre-tensioning. After every ...
Reconstruction based on the above sculptures shows that the ship was relatively low, with a boxed-in superstructure, a displacement of c. 40 tonnes, and capable of reaching speeds comparable with those of a full trireme. [51] The trihemiolia was a very successful design, and was adopted by the navies of Ptolemaic Egypt and Athens among others.
John Sinclair Morrison CBE (15 June 1913 – 25 October 2000) was an English classicist whose work led to the reconstruction of an Athenian Trireme, an ancient oared warship. From Lindfield, Sussex , Morrison was educated at Charterhouse and Trinity College, Cambridge . [ 1 ]
The Photoshop and illusions.hu flavors also produce the same result when the top layer is pure white (the differences between these two are in how one interpolates between these 3 results). These three results coincide with gamma correction of the bottom layer with γ=2 (for top black), unchanged bottom layer (or, what is the same, γ=1; for ...
The trierarchy were rated for a trireme according to their property as stated in the register in such a manner that one trireme was required from 10 talents. If their wealth was valued at a higher than 10 talents they would be assigned up to three triremes and one auxiliary vessel.