Derived from the French term corvette, the concept of corvette refers to a warship that resembles a frigate , although with less autonomy and tonnage . The denomination of the current ships comes from old ships that had a square sail and three sticks.
Today, corvettes are used to defend territorial waters, develop activities of surveillance or carry out missions of short duration. They have more weapons than patrol boats but, unlike frigates, they are not trained for extensive missions because of their limited autonomy.
The first corvettes, which used to escort merchant ships, ceased to be used in the second half of the XIX century . In the time of the First World War , these boats resurfaced with their contemporary characteristics with a displacement that, with the weather , arrived at 2000 tons .
Modern corvettes generally have anti-aircraft and anti-ship missile launchers, torpedoes, anti-submarine mortars, sonar and Radar . This allows them to develop various military tasks successfully.
Among the first generation corvettes we can mention the emerald corvette , dumped in 1855 and belonging to the Navy Chilean . This boat, which was manufactured in shipyards of England , participated in the Hispanic-South American War and of the Pacific War ; they finally sank it in 1879 .
The Buyan class corvettes , on the other hand, are modern corvettes that meet the service of the Russian navy . The Chinese navy it also currently has corvettes assigned to several of its fleets: warships Jiangdao , also known as Corvettes Type 056 .
Flower class corvette
Also known as Gladiolus class corvette , class Flower It was widely used in the United States, Canada and England throughout World War II. When the confrontation began, the Marine British Royal began its manufacture, for which it had to employ various shipyards. One of them was in France; when the Germans captured him, they took over the four corvettes they were building there.
Usually the total manufacturing period of a class corvette Flower It lasted between 23 and 30 days. It is estimated that approximately two hundred were built units ; each account with an order number preceded by the letter K . Two of the best known are HMS Blue Bell (K80) and HMS Snowberry (K166).
With respect to their general characteristics, the corvettes were vessels with a displacement of 940 or 1170 tons (depending on whether it was a trip standard or at full load), a propulsion plant with a boiler that was able to touch the 16 knots (30 km / h; its autonomy was 4000 nautical miles if it moved to 12 knots speed), four guns, two Lewis machine guns and an anti-submarine mortar.
The endowment A corvette of this type had 47 officers and sailors. It had two bridges: one discovered and one closed. Inside, the distribution aimed to make the most of every square centimeter to the fullest. The officers were in the center, while the crew cabins were in the bow and stern.
One of the weak points of the class corvette Flower is that it had no protection or shield against torpedoes . Some specialists consider this characteristic a true "design defect", and rely on the fact that it has caused so many losses during clashes with German submarines.
When the war , some of the corvettes that had overcome the battles were put up for sale, and were acquired by individuals or by foreign governments; the rest were subjected to scrapping. It is worth mentioning that among these corvettes that they survived, so to speak, some were used as harpoon ships, one of the components of whaling fleets.