Frankenthal class

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FRG Naval Ensign
Class 332 boat
General information
Class: Mine hunting boat
class 332 / 01-12
Type boat: Frankenthal
units 12 (2 out of service)
Builders:
Keel laying: 1990 to 1997
Launch: 1992 to 1998
Commissioning: 1992 to 1998
Decommissioning: Frankenthal (332/01; 2006)
Weiden (332/02; 2006)
Technical data and information
Displacement: 644 t
Length over all: 54.40 m
Width over everything: 9.20 m
Side height: 4.85 m (main deck)
6.44 m (B deck)
Draft: 2.50 m (construction)
2.60 m (use)
Total output: 4,080 kW (5,550 PS ) (construction)
4,480 kW (6,090 PS) (short maximum power)
Speed: 2.0 to 6.0 kn (slow speed)
12.0 kn (march)
over 18.0 kn (continuous high)
Fuel supply: 60.29 m 3
Crew: 44 people
Drive:
  • two MTU 16V 396 TB84 diesel engines, each with 2,040 kW (2,775 hp)
  • two waves
  • two five-blade controllable pitch propellers
    1.90 m in diameter
  • two fin oars
E-machine system:
  • three electric diesel engines MWM with 230 kW (312 PS) each
  • three generators with 160 kVA each

The Frankenthal class boats belong to the third generation of German post-war minehunters. Just like the Hameln class (class 343), the Kulmbach class (class 333) and the Ensdorf class (class 352), the boats of the class were built on the basis of the standard platform, which provides a uniform hull for all four classes. Due to the different tasks involved, the Frankenthal class differs from the other boat classes mainly in the area of ​​the superstructure. The mine hunting boats of class 332 replaced the mine hunting boats of the Lindau class (class 331).

tasks

The main task of a mine-hunting boat is to find and destroy sea ​​mines . Due to their equipment, it is also possible for the boats to carry out an exact mapping of the seabed; In addition, numerous parts of the wreck can be located in order to record them for shipping. In addition to mine clearance, the boats are also able to serve as a mine throwing platform.

Procurement history

The tactical-technical requirement for class 332 was drawn up in 1980; the AEG and MBB groups of companies created the definition with delivery in the spring of 1987 .

Class 332 was developed parallel to class 343, design and construction was carried out by Messerschmitt-Bölkow-Blohm GmbH, Munich, STN Systemtechnik Nord GmbH, Hamburg, Arbeitsgemeinschaft (ARGE) 343, Bremen, and ARGE MJ 332, Bremen, executed.

ARGE MJ 332 and ARGE 343 each consisted of the companies Fr. Lürssen Werft GmbH & Co. KG, Bremen, Abeking & Rasmussen Schiffs- und Yachtwerft GmbH & Co. KG, Lemwerder, and Krögerwerft Rendsburg GmbH, Rendsburg.

The first individual draft was for a mine-hunting boat with a displacement of about 400 t; the prime mover system should consist of two drive diesel engines KHD BA 12M 814 LLK-R with 600 kW (816 hp) each, two controllable pitch propellers on two shafts and an additional electric drive for crawl speed. The electrical machine system should consist of a total of four diesel generators. The effectors were a 40 mm L / 70 type 58 gun and a near-range anti-aircraft missile system RIM-116 RAM , and the sensors were either the optronic PEAB 9 LV 100 or the radar, infrared and laser-based PEAB 9 LV 200 MV2 provided.

The contract between the Federal Office for Defense Technology and Procurement (BWB), Koblenz , and the general contractor (GU) was signed on September 30, 1988. The construction contract for the first ten mine-hunting boats to ARGE MJ 332 took place on November 24, 1988. The construction contract for two more took place on October 13, 1995, GU were STN Atlas Elektronik GmbH, Bremen, and ARGE MJ 332, Bremen .

Technology, equipment and data

Shipbuilding description

The hull and the superstructure are made of non-magnetic chrome-nickel-manganese-molybdenum-nitrogen shipbuilding steel and the longitudinal frame and transverse frame system was used during construction. The minehunter has a semi-submerged forecastle, ten watertight compartments and NBC protection.

The mine hunter has an operational displacement of 650 t with a length over all of 54.40 m, a width over all of 9.20 m, a construction draft of 2.50 m and an operational draft of 2.60 m.

The mine hunting boat has two drive diesel engines MTU 16V 396 TB84 with 2,040 kW (2,775 hp) each, two shafts with two Sulzer-Escher-Wyss variable pitch propellers with diameters of 1.90 m each and two high-performance fin rudders . Three electric diesel engines MWM with 230 kW (312 PS) each and three generators with 160 kVA each complete the machine system.

The total design output is 4,080 kW (5,550 PS), the short maximum total output is 4,480 kW (6,090 PS). The slow travel speed is 2 to 6 knots, the cruising speed 12 knots and the maximum continuous speed over 18 knots.

The minehunter has a fuel supply of 60.29 m 3 .

The sensors are NBD navigation system, radio direction finder, Raytheon SPS-64 L-band radar device , GPS-Navstar satellite navigation system, system for evaluating and displaying tactical data in mine fighting (SATAM), data evaluation and information system (DAISY), and mine-hunting system Atlas Elektronik MWS 80-4 and Sonar Atlas Electronics DSQS-11M are available.

Mine-hunting drone STN PENGUIN B3

As additional equipment, the mine-hunting boat has magnetic self-protection (MES), two mine-hunting drones STN Systemtechnik Nord PINGUIN B3, mine diving equipment, diving pressure chamber, telescopic board crane, a dinghy, four life rafts and two bow anchors in side ducts.

crew

The minehunter can accommodate a crew of up to 44 people. In addition to the general soldiers, such as navigators, signals, sonar controls and technicians, the crew also includes specialized mine divers, for whom a diving pressure chamber is available, among other things.

Armament

40 mm L / 70 gun

As already mentioned, the boats were originally equipped with a 40 mm / L70 gun on the forecastle. However, these weapons were replaced on all boats by a marine light gun (MLG) 27 in order to improve self-protection. Furthermore, two air defense systems FIM-92 Stinger (Fliegerfaust 2) are available for air defense.

At least two MG3 machine guns , three G36 rifles , three MP2 submachine guns and two P8 pistols , hand grenades and one single-barreled and one double-barreled signal pistol are carried on board for guard and security tasks.

Mine hunting equipment

Originally, all mine hunting boats were equipped with the Sonar Atlas Elektronik DSQS-11M with a controllable search sector of 90 ° and the mine hunting drone STN Systemtechnik Nord PINGUIN B3. The recorded data is evaluated with the system for evaluating and displaying tactical data in mine fighting (SATAM).

Since 2010 all ten boats have been converted from PENGUIN B3 to SEEFUCHS. First of all, the boats Dillingen, Homburg, Sulzbach-Rosenberg, Fulda and Weilheim were modernized. The Dillingen was also equipped with the Integrated Mine Countermeasures System (IMCMS) from Atlas Elektronik. On December 21, 2016, Atlas Elektronik was commissioned to convert the last three boats. This includes the replacement of the command and weapon deployment system by the IMCMS, the replacement of the PENGUIN weapon system by SEEFUCHS for mine hunting and the transfer of the ability to control the SEEHUND surface drones to the simulation rooms. This means that ten class 332 mine-hunting boats will be available in the future, which will map mine-hunting, mine-clearing and mine-diving capabilities for anti-sea mine defense.

28 mine destruction charges are available for mine control.

Mine throwing device

Practice mine clear to throw

The minehunter is able to hold up to 20 sea ​​mines (anchor rope and ground mines), which can be thrown from the aft deck if necessary .

squadron

Originally, all twelve boats of the class belonged to the 1st minesweeping squadron , as this squadron was intended as a class 332 type squadron. In 1999, however, there was restructuring, after which the boats Frankenthal , Sulzbach-Rosenberg and Bad Rappenau were subordinated to the 3rd minesweeping squadron. When the 1st minesweeping squadron was decommissioned on December 22, 2005, the remaining nine units were transferred to the 3rd and 5th minesweeping squadrons. At the end of 2015 the 5th MSG was also dissolved, so that the last two boats of the squadron were placed under the 3rd MSG. All mine defense units are therefore bundled in the 3rd MSG.

Others

Originally the class should be called Weiden -class, since the Weiden was the oldest boat of this type; however, the Frankenthal was put into service earlier than the Weiden , although it was laid down later . In some sources, the name Weiden -class can be found parallel to the actual name.

Mine hunting boats of the Frankenthal class

Class,
name
Identification
callsign
Shipyard Keel laying,
launching,
commissioning
Dislocation / whereabouts
332/11
Fulda
M 1058
DRFC
Abeking & Rasmussen na
29.09.1997
05.06.1998
5th MSG, 1st MSG; 3rd Minesweeping Squadron, Kiel since 2007
332/12
Weilheim
M 1059
DRFD
Lürssenwerft na
26.02.1998
26.11.1998
5th MSG, 1st MSG, 3rd Mine Detection Squadron, Kiel since 2007
332/02
pastures
M 1060
(DRES)
Abeking & Rasmussen 03/01/1990
05/14/1992
03/30/1993
1. MSG; June 30, 2006 out of service;
Sale to the United Arab Emirates , for them on June 30, 2006 as AL HASBAH in service with the UAE Navy .
332-B / 03
Rottweil
M 1061
DRET
Lürssenwerft (reconstruction Peenewerft) na
03/12/1992
07/07/1993
1st MSG, 3rd MSG, used as MTE boat 5th MSG, 3rd minesweeping squadron, Kiel
mine diver use boat of the sea battalion
332/10
Sulzbach-Rosenberg
M 1062
DREU
Lürssenwerft na
04/27/1995
01/23/1996
1st MSG, 3rd Mine Detection Squadron, Kiel since 2000
332/04
Bad Bevensen
M 1063
DREV
Lürssenwerft na
21.01.1993
09.12.1993
1st MSG, 5th MSG, 3rd Mine Detection Squadron, Kiel since 2015
332/06
Grömitz
M 1064
DREW
Kroger shipyard na
04/29/1993
08/23/1994
1st MSG, 5th MSG, 3rd Mine Detection Squadron, Kiel since 2015
332/08
Dillingen
M 1065
DREX
Abeking & Rasmussen na
05/26/1994
04/25/1995
1st MSG, 3rd Mine Detection Squadron, Kiel since 2007
332/01
Frankenthal
M 1066
(DREY)
Lürssenwerft na
06.02.1992
16.12.1992
1st MSG, 3rd MSG, June 30, 2006 out of service;
Sold to the United Arab Emirates , in service for them on June 30, 2006 as AL MADJAN.
332/05
Bad Rappenau
M 1067
THREE
Abeking & Rasmussen 06/03/1993
04/19/1994
1st MSG, 3rd MSG, 5th MSG, 3rd Mine Detection Squadron, Kiel Since 2015
mine diver deployment boat of the sea battalion
332/07
dates
M 1068
DRFA
Kroger shipyard na
27.01.1994
08.12.1994
1st MSG, 5th MSG, 3rd Mine Detection Squadron, Kiel since 2015
332/09
Homburg
M 1069
DRFB
Kroger shipyard na
04/21/1994
09/26/1995
1st MSG, 3rd Mine Detection Squadron, Kiel since 2007

literature

  • Stephen Saunders (Ed.): Jane's Fighting Ships 2007-2008. Jane's Information Group Limited, Coulsdon (UK) 2007.
  • Hannes Ewerth, Peter Neumann: German Navy. The German Navy. Publishing house ES Mittler & Sohn GmbH. Hamburg, Berlin, Bonn 2006.
  • Press and information center marine (ed.): The fleet. Marine Press and Information Center, 9th edition, Glücksburg 2006.
  • Sigurd Hess, Guntram Schulze-Wegener , Dieter Stockfisch, Heinrich Walle (eds.): 50 years of the German Navy in the picture. Report Verlag GmbH. Bonn, Frankfurt am Main 2006.
  • Sigurd Hess, Guntram Schulze-Wegener, Heinrich Walle (eds.) (2005). Fascination with the lake. 50 years of the Navy of the Federal Republic of Germany. Hamburg, Berlin, Bonn: Publishing house ES Mittler & Sohn GmbH.
  • Hendrik Killi: Minesweeper of the German Navy. Koehlers Verlagsgesellschaft mbH / Verlag ES Mittler & Sohn GmbH, Hamburg, Berlin, Bonn 2002.
  • Siegfried Breyer, Gerhard Koop: The ships, vehicles and planes of the German Navy from 1956 until today. Bernard & Graefe Verlag GmbH. Bonn 1996.

Web links

Commons : Frankenthal class  - collection of images, videos and audio files

Footnotes

  1. ^ Marine.de: Mine hunting boat "Dillingen" returns home from NATO mission , accessed on December 8, 2013.
  2. Hardthoehenkurier.de: Mine hunting up to date , accessed on January 5, 2017.