Grisha-class corvettes were conceived of by the Soviet Navy during the middle Cold War years of the 1960s and constructed between 1970 and 1990 for the purposes of Anti-Submarine Warfare (ASW). Over ninety of the type were built and these went on to serve the waterborne services of the Soviet Union, Georgia, Ukraine and Lithuania. One of their number eventually included Primorsky Komosomolets (354) which still manages to serve the Russian Navy today (2018) despite her Cold War origins.
Power and Structure
Primorsky Komosomolets is powered by a pair of M-507A marine diesel units developing 20,000 horsepower and this is joined by a gas turbine offering up to 18,000 horsepower used to drive 3 x Shafts under stern. Three electric sets make up the electric plant. The diesel engines are used for cruising actions while the gas turbine aids in dash maneuvers where speed is of the utmost importance. Aboard is a crew of sixty men. Structural dimensions of the warship include an overall running length of 235 feet with a beam measuring 32 feet and a draught of 12 feet. The latter quality allows the vessel to operate near coastal areas key to controlling beachheads and supporting amphibious assaults.
With its installed propulsion scheme, the warship manages a maximum speed of 34 knots (in ideal conditions) and an operational range nearing 4,000 nautical miles.
Armament is a 57mm /70 caliber Dual-Purpose (DP) deck gun in a single twin-gunned emplacement. The warship also carries an SA-N-4 "Gecko" surface-to-air missile launcher with twenty reloads to counter inbound, low-flying aerial threats. Also aboard are 2 x RBU-6000 Anti-Submarine ROCket (ASROC) launchers (with 96 reloads), 2 x 533mm torpedo tubes and 2 x Depth charge launchers for the stock of 12 depth charges carried (which can be substituted with eighteen naval mines).
The Grisha-class Evolution
There were various marks of the Grisha-class built. Original ships were under Project 1124.1 and these arrived from the period spanning 1970 to 1974 but all were given up by 1979. With the arrival of the Project 1124P ships, the first-run vessels were regarded as "Grisha I" models making the follow-up design "Grisha II" - a key change being the loss of the SA-N-4 missile launcher, this replaced by a second 57mm autocannon mounting. Some seventeen ships were built to the standard.
Then came the Project 1124M ("Grisha III") ships of the latter-1970s/early-1980s period. The mark was advanced through updated electronics as well as a 30mm autocannon fitting. Production totaled thirty-four vessels. Project 1124K yielded just one ship as a "Grisha IV". This was used as a testbed for the SA-N-9 (SA-15 "Gauntlet") surface-to-air missile platform. Thirty Project 1124ME and 1124.4 ships were then built to the newer Grisha V standard from 1985 until 1994. A single 76mm turreted deck gun now replaced the twin 57mm autocannon mountings to streamline the armament suite.
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