page_title: Gnevny-class destroyer
section_title: Design and description
hierarchical_section_title: Gnevny-class destroyer / Design and description
caption_attribution_description: English: Right elevation and plan of the Gnevy-class destroyer
context_page_description: The Gnevny class were a group of 29 destroyers built for the Soviet Navy in the late 1930s. They are sometimes known as the Gremyashchiy class and the official Soviet designation was Project 7. These ships fought in World War II.
  In the early 1930s the Soviets felt able to restart construction of fleet destroyers and forty-eight ships were ordered under the Second Five-Year Plan.
  The design was produced with Italian assistance despite ideological differences between the Soviets and Fascist Italy. They resembled contemporary destroyers built in Italy for the Greek and Turkish navies.
  They suffered from some of the same weaknesses of contemporary Italian ships with structural weakness and limited seaworthiness. There were also significant machinery problems in the earliest ships. The design flaws were apparent after trials of the first units in 1936/37 and production stopped after 30 ships. A modified design was then placed into production as the Type 7U.
  Four surviving ships from the Pacific Fleet were transferred to the People's Liberation Army Navy and served as the Anshan-class destroyers.
context_section_description: Having decided on the specifications of the large 40-knot (74 km/h; 46 mph) Leningrad-class destroyer leaders, the Soviet Navy sought Italian assistance in designing smaller and cheaper destroyers. They licensed the plans for the Folgore class and, in modifying it for their purposes, overloaded a design that was already somewhat marginally stable.
  The Gnevnys had an overall length of 112.8 meters (370 ft 1 in), a beam of 10.2 meters (33 ft 6 in), and a draft of 4.8 meters (15 ft 9 in) at deep load. The ships were significantly overweight, almost 200 metric tons (197 long tons) heavier than designed, displacing 1,612 metric tons (1,587 long tons) at standard load and 2,039 metric tons (2,007 long tons) at deep load. Their crew numbered 197 officers and sailors in peacetime and 236 in wartime.
  The ships were powered by two geared steam turbine sets, each driving a single three-bladed 3.18-meter (10 ft 5 in) propeller using steam provided by three water-tube boilers that operated at a pressure of 26.5 kg/cm² (2,599 kPa; 377 psi) and a temperature of 350 °C (662 °F). The turbines, rated at 48,000 shp (36,000 kW), were intended to give the ships a speed of 37 knots (69 km/h; 43 mph). The designers had been conservative in rating the turbines and many, but not all, of the ships handily exceeded their designed speed during their sea trials. Others fell considerably short of it; Boyky reached 34 knots (63 km/h; 39 mph) during her trials in 1943. Variations in fuel oil capacity meant that the range of the Gnevnys varied between 1,670 to 3,145 nautical miles (3,093 to 5,825 km; 1,922 to 3,619 mi) at 19 knots (35 km/h; 22 mph).
caption: Right elevation and plan of the Gnevny class
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