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The Oliver Hazard Perry class is a class of guided-missile frigates named after U.S. Commodore Oliver Hazard Perry, a commander noted for his role in the Battle of Lake Erie. Also known as the Perry or FFG-7 (commonly "fig seven") class, the warships were designed in the United States in the mid-1970s as general-purpose escort vessels ...
The Colwich rail crash occurred on the evening of Friday 19 September 1986 at Colwich Junction, Staffordshire, England. [1] It was significant in that it was a high speed collision between two packed express trains. One driver was killed, but no passengers died because of the great strength of the rolling stock involved, which included examples ...
In chemistry, thermodynamics, and other related fields like physics and biology, a phase transition (or phase change) is the physical process of transition between one state of a medium and another. Commonly the term is used to refer to changes among the basic states of matter: solid, liquid, and gas, and in rare cases, plasma.
Armament. 6 × 21 in (533 mm) torpedo tubes. 2 × Mark 45 torpedoes. USS Scorpion (SSN-589) was a Skipjack -class nuclear-powered submarine that served in the United States Navy, and the sixth vessel, and second submarine, of the U.S. Navy to carry that name. Scorpion was believed to have been lost on 27 May 1968.
Cavitation is a significant cause of wear in some engineering contexts. Collapsing voids that implode near to a metal surface cause cyclic stress through repeated implosion. This results in surface fatigue of the metal, causing a type of wear also called "cavitation".
2 × SH-60 LAMPS III helicopters. USS Doyle (FFG-39) was the 30th ship to be constructed in the Oliver Hazard Perry class of guided missile frigates of the United States Navy. Doyle was named after Vice Admiral James Henry Doyle (1897–1982). Vice Admiral Doyle was most known for his contributions during the Korean War as Commander Amphibious ...
For example, under a manager such as José Mourinho, the number 8's role would be to speed up play, so that the offensive transition is quick and hard to catch up, and would generally be played as a wide midfielder; however under a manager such as Pep Guardiola, Vicente del Bosque, Johan Cruyff, or Zinedine Zidane, the number 8 would be played ...
The Montana-class battleships were planned as successors of the Iowa class for the United States Navy, to be slower but larger, better armored, and with superior firepower. Five were approved for construction during World War II, but changes in wartime building priorities resulted in their cancellation in favor of continuing production of Essex ...