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Military


Project 50 "Ermine" / Riga - Armament

The armament of the ships consisted of:

  1. 3 single-barrel 100-mm guns B-34USMA with a barrel length of 56 calibers. Two guns were located in the bow and one in the stern of the ship. Ammunition consisted of 200 rounds per gun. The installation was not a fully enclosed turret, but rather had a shield made of bulletproof armor and an original design with a movable shield covering the embrasure. The rate of fire during mechanical reloading was 15 rds / min. The initial velocity of the projectile is 900 m / s, the maximum elevation angle is 85 ° and the firing range is 22 km, the ceiling is 15 km. Calculation - 7 people. The mechanisms of vertical and horizontal aiming provided a guidance speed of up to 12 deg / s. The mass of the installation is 12.5 tons, the survivability of the trunks (with phlegmatizers) reached 1,500 rounds. The gun mounts were guided automatically by remote control and manually.
  2. 2 twin 37-mm V-11 submachine guns with a barrel length of 67 calibers, located flankly in the stern of the ship, to combat aircraft. Charging clips (5 shots per clip), feeding clips manually. The calculation of the gun included 11 people. The rate of installation was up to 360 rounds / min. The angle of vertical guidance from -15 to + 90 °. Vertical and horizontal guidance drives are manual only. The initial velocity of the projectile is 880 m / s., And the firing range is up to 8.4 km, the ceiling is 4 km. The gun mounts were guided by the AZP-37-2M automatic sight. The mass reached 3,400 kg.
  3. 1 three-tube 533-mm torpedo tube TTA-53-50 with ammunition from 3 straight-line combined-cycle torpedoes 53-51 in TA. The torpedo launcher was equipped with a central device for firing control. Later, with the advent of anti-submarine torpedoes, torpedoes of the SET-65 type were also used.
  4. mine rails and 26 anchor mines KB-3 to overload. The ship’s large mine with a galvanic shock fuse weighed 1065 kg, and the charge weight was 230 kg. The depth of the staging location was from 12 to 263 meters, the minimum mine interval was 35 meters, and the highest speed was 24 knots with a side height of 4.6 meters. The time of arrival in the combat position was 10-20 minutes, the accuracy of installation at a given recess of 0.6 meters, the delay of the explosion of 0.3 seconds.
  5. 2 bomb spreaders and depth charges bb-1. The total weight of the large depth bomb was 165 kg, and the weight of TNT was 135 kg with a length of 712 mm and a diameter of 430 mm. The speed of immersion reached 2.5 m / s, and the radius of damage ranged from 8 to 20 meters. The bomb provided for the installation of the explosion depth from 10 to 210 meters.
  6. 1 MBU-600 jet bomb with 24 guides and the ability to change the pointing angles of each, it was fixed in the bow of the ship and stabilized during rolling. Guidance on the target was carried out by the ship's hull at the heading. The firing of the bomb was carried out in one gulp, and the firing control was carried out from the wheelhouse using the PUS-24-600 firing control device. Ammunition included 120 depth charges B-30. The firing range was 644 meters, and the defeat zone of a submarine traveling at a speed of 10 knots at a depth of up to 330 meters had the shape of an ellipse, due to the individual inclination of the guides, 30-40 meters along the direction of fire and 40-50 meters wide. B-30M bombs were used.
  7. 4 single-barreled BMB-2 bombs located side-by-side in the stern. The bombers have a caliber of 430 mm, a range of 120 meters and a depth of destruction of up to 330 meters. Bombers use BB-1 bombs.



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