Lindau-class minesweeper
Load displacement:
To 465 t
The 18 boats Lindau class ( class 320) were originally manufactured as a coastal minesweepers 55 on the Burmester Werft in Bremen-Burg and put into service 1958-1960. They were later converted into mine hunting boats of the class 331, which consisted of two sub-classes, and hollow rod steering boats in Class 351.
- 2.1 Drive
- 2.2 armament
- 2.3 Minenräumgeschirr
History
Coastal minesweepers (Class 320)
The Lindau class was the German version of the NATO unit type made and adapted by various NATO member states U.S. Bluebird class. As a replica of this type six boats were built in 1959-60 in France Mercure type for the German Federal Navy ( Vegesack class).
The Lindau class, however, was slightly modified, received, for example, to improve the stability of a lower bridge construction and proven to be very robust and versatile boat class. So both versions were ( mine hunting boat and hollow rod steering boot, see below ) has been successfully used in the Persian Gulf during Operation southern flank. The boats were repeatedly upgraded over time and reclassified. In the period of 1991 and 2000 finally made the withdrawals from service.
Mine hunting boats ( class 331)
Between 1970 and 1979, twelve of the boats were converted to mine hunting boats, initially for two subclass 331A and middle of the decade the remaining ten to subclass 331B. These included a mine hunting sonar and two remote-controlled mine hunting drone PAP 104, and the high-precision navigation system SYLEDIS equipped. The Class 331 tasks were taken over by their decommissioning by the boats of Kulmbach Class (Class 333).
Hollow rod steering boats ( class 351)
1989, the remaining six boats were equipped with the TROIKA system for directing hollow rod boats of the type " seal " and then referred to as class 351. The boats of the class 351 were replaced by boats Ensdorf class.
Decommissioning and fate
Most of the boats were in the service of friends, two have survived in Germany, see details below in the section on individual boats.
Technology
Since minesweepers to produce the smallest possible magnetic field, they were built of wood. Above the waterline, 3 coats with intermediate isolation were glued together. The first and third layers of mahogany were aligned parallel to the keel, the middle layer of teak diagonally. Below the waterline a fourth layer of oak was still attached. The bulkhead framework consisted of 118 transverse, longitudinal 2 and 20 Konstruktionsspanten wooden frame spacing 0.38 m. For up-and internals amagnetic material was mainly installed.
Drive
The drive consisted of two Mercedes -Maybach MD 871 16 -cylinder V-engine with 2,000 horsepower that drove two three -bladed Escher Wyss controllable pitch propellers.
In the minesweepers three MWM, 3-cylinder diesel were (type 518Dn / 5 ) fitted with 220 V direct current generators and two MD 441 with 900 hp ( Räumdiesel ). Four of them were at the E-Werk, the fifth ( 1MWM 3-cylinder diesel ) in the engine room. The converted to mine hunting boats of the class 331A units, which had two additional Schottelpropeller, two e- diesel were removed and a Maybach built V -8 engine rated at 900 hp for the Schottel drive. In the 331B class was omitted later on Schottelpropeller.
Fuel bunker 42 m³ and 28 m³ by rebuilding. Range at 14 knots 900 nm.
Arming
Minenräumgeschirr
Räumgeschirr mechanically
- 3 ropes
- 1 deep dragon
- 2 Scheer dragon, a dragon reserve
- 4 Large float
- A float zero
- 4 pigs (small float )
- Mechanical and explosive gripper
- Verblockungswerfer
- Buoys
Räumgeschirr electrically
- Large loop cable
Räumgeschirr acoustically
- 2 Noise buoys mechanically
- 1 Geräuschboje electrically
Units
Germany Germany
The boats were given the names of German cities. Throughout their period of service they were stationed in the North Sea. As a coastal minesweeper they belonged to the 4th Minesweeping Squadron (4th MSG) with home port of Wilhelmshaven and 6th Minesweeping Squadron (6th MSG) and 8th Minesweeping Squadron ( 8 MSG) in Cuxhaven.
After their conversion, the mine hunting boats the fourth MSG, the hollow rod steering boats formed the 6th MSG. Both squadrons were merged late 1970s and early 1980s a number of years for Mine Countermeasure Squadron North Sea, were stationed in Wilhelmshaven. Following withdrawal of the first MJ- boats the fourth MSG was disbanded and the remaining mine hunters were in their final years under the German flag also the 6th MSG.
Estonia Estonia
Estonia took over two of the boats in Class 331B with the complete mine hunting equipment including PAP104 drones and they also operate as mine hunters. They were stationed in Tallinn.
Georgia Georgia
Georgia took a boat Class 331B, the former Minden, and had it converted to a patrol boat for the Coast Guard, including a search radar Atlas Elektronik TRS of type (I- band ) in Germany. She was commissioned on 15 November 1998 as Ayety (P 22) in service. On August 13, 2008, while the Caucasus conflict, the ship was towed to the military part of the port of Poti and sunk there by Russian soldiers by blowing up.
Latvia Latvia
Latvia took over as Estonia, two boats of Class 331B with the complete mine hunting equipment including PAP104 drones, but only operate a boat, the former Völklingen. She was stationed as Nemejs (M 03) in Libau ( Liepaja ) and has since been decommissioned. The Göttingen also acquired merely served as a source of spare parts.
Lithuania Lithuania
Lithuanian Navy took over as the Baltic neighbors two boats with the complete mine hunting equipment including PAP104 drones and operates also as mine hunters. They are stationed in Memel ( Klaipeda ).
South Africa
South Africa took over all six boats of the class 351 which were referred to as city class. The contract to purchase the boats was closed on 10 November 2000. Four boats were part of the fleet, two of which belonged only to the reserve fleet. The home port was Simon 's Town. The former Ulm and Konstanz merely served as a source of spare parts. The latter came during an exercise Red Lion on November 1, 2007 as a practice target for frigates for use and Exocet MM40 anti-ship missiles was sunk by.
The whereabouts of Tübingen is an exception: it was sold in 1997 to an Italian private owner, who rebuilt it to a motor yacht. The ship's clock passed through the donation of Erich Stahn from Schwebheim in the possession of the Tübingen city museum. From the intensively managed Tübingen sponsorship still generates a model of Tübingen in Tübingen cultivation of the town hall on the first floor.