102 mm 60 caliber Pattern 1911

102 mm 60 caliber Pattern 1911 File:Memorial_of_coastal_defence_Uusikaupunki.jpg 300 Coastal Defense Memorial Uusikaupunki Russian Empire Naval gunRailway gunCoastal artillery yes yes yes Russian EmpireSoviet UnionBulgariaEstoniaFinlandPeru World War IRussian Civil WarWinter WarWorld War II Vickers 1908 ObukhovPerm 1911 2850 kg lb us on 6 m ftin us on 5.2 m ftin us on 60 caliber Fixed QF 101.6 x 790mm Rammunition 30 kg lb us on 17.5 kg lb us on 102 mm in us Semi-automatic 12-15 rpm 823 m/s ft/s us on 16 km mi us on at +30° Horizontal wedge breech -10° to +30° 360° The 102 mm 60 caliber Pattern 1911 was a Russian naval gun developed in the years before World War I that armed a variety of warships of the Imperial Russian Navy during World War I. Pattern 1911 guns found a second life on river gunboats and armored trains during the Russian Civil War and as coastal artilleryhttp://www.jaegerplatoon.net/COASTAL_ARTILLERY2.htm FINNISH ARMY 1918 - 1945: HEAVY COASTAL GUNS www.jaegerplatoon.net 2017-06-28 during World War II. In 1941 it was estimated that 146 guns were in service. Of these, 49 were in the Baltic Fleet, 30 in the Black Sea Fleet, 30 in the Pacific Fleet, 18 in the Northern Fleet, 9 in the Caspian Flotilla and 6 in the Pinsk Flotilla.http://www.navweaps.com/Weapons/WNRussian_4-60_m1911.php Russia / USSR 4"/60 (10.2 cm) Pattern 1913 - NavWeaps DiGiulian Tony www.navweaps.com en 2017-06-28 History The requirement to re-equip destroyers of the Imperial Russian fleet with guns larger than the current 75 mm 50 caliber Pattern 1892 was raised by the chief of the Baltic Fleet Mine Division, Nikolai Ottowitsch von Essen, in January 1907."Noviki" : lučšie ėsmincy Rossijskogo Imperatorskogo flota Černyšev Aleksandr 2007 "Jauza" [u.a.] 9785699231645 239634061 The design for the new gun was completed with technical assistance from the British Vickers company at the Obukhov State plant in 1908 and testing was completed in August 1909. Construction Pattern 1911 guns were produced at the Obukhov state plant and the Perm artillery factory between 1911 and 1921. In 1911 an order for 505 guns was placed of which 225 were delivered by January 1, 1917. Another 200 were expected to be produced during 1917 and 83 in 1918. In 1921 an order for 85 guns was placed at the Perm factory, but this was reduced to 48 guns. The Pattern 1911 was constructed of an A tube, reinforced by three hoops which were put on while hot and screwed onto the breech. The Pattern 1911 had a high rate of fire 12-15 rpm (10 rpm practical) due to the use of Fixed QF ammunition and a semi-automatic, horizontal wedge breech mechanism. After ejecting each empty case the gun re-cocked itself and kept breech open for the next round. It also had the usual combination of hydraulic buffer and spring recuperator. The original naval mounts were short and had low angles of elevation between -6° and +20°. Latter mounts were taller and had high angles of elevation between -10° and +30°.Naval weapons of World War One : guns, torpedoes, mines and ASW weapons of all nations : an illustrated directory Friedman Norman 2011 Seaforth Pub 9781848321007 751804655 Naval use Pattern 1911 guns armed a variety of ships such as destroyers, guard ships, gunboats, landing craft, minelayers and torpedo cruisers of the Imperial Russian Navy. After the 1917 October Revolution the successor states of Estonia, Finland, and the Soviet Union all used this gun. Pattern 1911 guns were also used on World War I era destroyers bought by Bulgaria and Peru. Some Romanian cruise ships were lent to Russia in the First World War, to be used as auxiliary cruisers, and equipped with 102 mm Obukhov guns. After the October Revolution most of those ships returned to Romania. In the Second World War, about 3 to 5 guns were used by Romanians as coastal artillery in Sulina & Sf.Gheorghe Black Sea sectors. Ship classes which carried the Pattern 1911: 30em Derzky-class destroyers Fidonisy-class destroyers Emir Bukharsky-class destroyers Gavril-class destroyers Okhotnik-class destroyers Golub-class guard ships Kars-class gunboats Kazarskiy-class torpedo cruisers Izyaslav-class destroyers Orfey-class destroyers Shchastlivyi-class destroyers Ukraina-class destroyers Uragan-class guard ships Gaidamak-class destroyers Zhemchug-class guard ships Ammunition Ammunition was 101.6 x 790mm R and of Fixed QF type. A complete round weighed between 24.5 and 30 kg lb us on. The projectiles weighed between 15 and 17.5 kg lb us on. The gun was able to fire: Armor Piercing Common shell High Explosive Illumination Incendiary Shrapnel Gallery References Naval Weapons of World War One Friedman Norman Seaforth 2011 978-1-84832-100-7 Barnsley, South Yorkshire, UK "Noviki" : lučšie ėsmincy Rossijskogo Imperatorskogo flota Černyšev Aleksandr 2007 "Jauza" [u.a.] 9785699231645 239634061 Notes 20em Category:Artillery of the Russian Empire Category:Artillery of the Soviet Union Category:Coastal artillery Category:100 mm artillery Category:Obukhov State Plant products