Type "Som" – submarines 1904 – 1906 years

12 September 1903 g. Board Nevsky shipbuilding and mechanical plant in St. Petersburg signed an agreement with the American company «Holland Torpedo Boat», owned J.. Golland, Treaty on the Law of the Nevsky plant for 25 years to carry out the construction of the submarine project in Russia, Holland.

10 February 1904 g. Board Nevsky shipbuilding and mechanical plant in St. Petersburg Marine Technical Committee has proposed (MTK) build submarines under the project “Dutch-7p” («Holland-VIIR») (According AE. This project called Taras “Dutch-9”). MTK “It recognizes the desirability of purchasing” one or two boats of this project. In connection with the beginning of Russian-Japanese War, 27 February 1904 g. Nevsky Plant was issued an order to build five boats with delivery in August-September 1904 g. simultaneously, 28 April 1904 city, the firm was bought by Holland submarine project “Dutch-7p” («Holland-VIIR»), “Fulton”, built in 1901 in the USA.

Submarine "Minnow" type "Catfish" in Libava, 1905 year.

PL was given a new name “KGS”. Bookmark all five boats took on Nevsky Plant 10 May 1904 city, hull boats built from local materials, machines and equipment purchased in the US and on Nevsky factory only going. Due to the lack of experience in the construction of these boats was slow. Sea trials of the first boat “Pike” only started 15 June 1905 g. All five boats were ordered to put a 25 May 1906 g. Nevsky Plant Board was not limited to the construction of five submarines and 4 July 1907 g. ITC has proposed to build another submarine of this type. Department of diving Main Shipbuilding Management (SOUND) I supported this proposal. Her tests were completed 22 November 1907 g. Given the name of the boat “Zander”. Training crews of the first submarine of this series was held under the guidance of American trainers.

Submarine "Sturgeon" type "Catfish" 1910 year.

Submarines “KGS” were Monohull. Corps had spindle-shaped, reminiscent of “shape fast swimming fish (dolphin)”. He was distinguished by a thickened part of the bow and the stern of the narrow contours. easy add-in was installed to improve navigability on top of the pressure hull.
Robust felling had eight portholes to monitor the situation in the position position. For surveillance and fire control at periscope depth was set periscope system Foss. submarine was controlled by two pairs of vertical and horizontal rudders, disposed crosswise of the propeller. Ballast tanks housed in a rugged and purged with compressed air at any depth up to the limiting. Boats were equipped “automatic device for emptying main tank is lowered to a depth of more than 60 f.”. It was comfortable and system equalization tank.

All Submarine “KGS”, It was part of the Baltic Fleet, with a 37-mm gun were armed outbreak of the First World War. In the course of development of submarine periscopes Foss replaced with a more efficient system of periscopes Hertz. upgrade PL “KGS” in winter 1908-1909 gg. converted on the model submarine construction Nevsky Plant.
In November 1907 Year submarines "Pike" took part in the experiments of swimming under the ice.
23 October 1909 g. General Directorate of Shipbuilding and supply the results of the contest the company issued an order “L. Nobel” (St.Petersburg) of izgotovlenie 5 diesel power 160 HP. and weight 3,3 ie to replace benzomotorov, has an improved explosive. Due to excessive facilitate diesel engines were unreliable. Square “polite” Kerting company kerosene engine was installed.

The submarine "Beluga".

In general, the type of boat “KGS” positively different from the submarines of other projects at the time. They possessed a relatively high travel speed, dive speed, seaworthy, as well as the completeness and reasonableness of details. Submarines of this type were in battle array before the end of the company 1916 of the year.

Russian submarine "Sudak" type "Catfish".

The performance characteristics of submarines of "Catfish"

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