The Greek bireme was an oared warship with two rows of oars on each side. It was a revolutionary invention by (possibly the Biotian Greeks since the Trojan War or more probable their settlers, the Erythraeans in Asia Minor in the 8th century B.C.) which doubled the motion force of the ship without increasing its length. This was an important advantage in pirate persecutions and in the ramming of opponents. She was fitted out with a bow ram
Steering was achieved with the two big oars. Place on both sides near the stern. Complementarily, it had a large square sail with many pulleys for its unencumbered handling. During fighting the sail was furled. It usually had 100 oars ("ekatontoros"). Its dimensions reached length 32 and beam 4.80 metres respectively.
Sometimes it had a deck for the protection of the oarsmen and the facile transport of the warriors.

SOURCES: "The History of the Greek Nation, Ekdotiki Athens", "Dellopoulos, The Greek Trireme", "Deligiannis Pericles, Naval History", "Homer, Iliad", "Aelianos Taktikos, Tactic theory".
Vietnam 1986 1d sg988, scott 1686.

Akademik Kurchatov

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Akademik Kurchatov

Postby shipstamps » Tue Jul 08, 2008 5:11 pm

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The Akademik Kurchatov was the first of six oceanographic research ships built for the Russian Academy of Science. Little, if anything, has been overlooked in these floating laboratories. A helicopter pad is on the boat deck aft. There are two 5-ton derricks forward, and two 2-ton derricks, while at the after end are an 8-ton and a 5-ton derrick. In the forward hold 125 tons of scientific equipment can be stored, while the rocket magazine is stored aft in a similar hatch. To enable the ship to proceed at slow speeds during research operations, an active rudder of 300 h.p. is fitted; there are also two 190 h.p. bow thrust units. The ship can be driven at 4 knots with the main engines stopped. On the boat deck are two motor and two hand-propelled life-boats, a survey launch and a 25-knot personnel launch. On two powered reels forward there is 8,200 fathoms of steel wire rope for trawling and riding to a sea anchor (600 kg.). The trawl can be worked from a projecting boom at the bow or from gallows on the starboard side aft. Five small derricks with electric winches are provided for overside measurements. Push-button control is installed on the bridge. A very high standard of accommodation is provided for the 85 crew and 81 scientific staff. The ship has an operational radius of 20,000 miles at 16 knots, the maximum speed being l8'/2 knots.Main engines are two Halberstadt-M.A.N. diesels of the K6Z 57/80 type. The vessel was built in 1966 by Matthias-Thesen-Werft, at Wismar, and has three decks. She is of 5,460 tons gross, with a summer deadweight of 1,986 tons. Her dimensions are: length (o.a.) 407 ft. 6 in. (b.p.) 360 ft.; beam 55 ft. 9 in.; maximum draft 19 ft. 5in. She is a single-screw vessel.
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