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Small Torpedo-S-Boat (Klein-Torpedoschnellboot) "Libelle" (Projekt 131)

Based on the good experiences made with the LTS-Boats a slightly bigger boat with better seaworthiness, bigger range, and additional armament was to be developed. It was also to be operated as transport unit.

Drawing from Mehl/Schäfer: Die andere deutsche Marine

Technical Data

Shipyards VEB Schiffswerft Rechlin - Hull; Peenewerft-Equipment
Units built  30
From/to 1972 - 1977
In Commission 1974 - 1986
Displacement 28 t
Length 18,9 m
Beam 4,5 m
Draught 1,70 m
Propulsion 2 engines M 50 F-7 in Bow, 1 reversible Diesel in Stern
Shafts/Propellersn 3 - 3
Speed 48 kn
Complement  5 (1 Officer, 1 Chief, 1 Petty Officer, 2 Ratings)
Armament 2 Torpedo Tubes, 1 x 23 mm twin mounted Gun ZU 23,     2 Mines

KTS-Boats of the Type Libelle in Formation (Picture: Peter Seemann)

Specials:

Aluminium boat with two torpedo tube integrated in the main deck, 2 lauching devices for mines on both sides of the superstructure, one navalised 23 mm twin mounted gun ZU-23 with weather shield, two engines M 50 F-7 in the bow and one reversable Diesel M 50 F-7 in the rear, TSR-222 radar suite. Complement: 5 personnel, Commanding Officer, Engine Petty Officer, Electricity Rating and Gunney Rating. 

Beginning in 1972 four trial boats were built by Peenewerft. After the test  and trial phases 30 hulls were produced by VEB Schiffswerft, Rechlin, and equipped in Wolgast.

The first boat of the series was commissioned in 1974, 29 other boats were built until March 1977. The boats were substituted the restructured LTS-Brigade with three Divisions of 10 boats each. After 1976/77 the boats were operating in two brigades of 15 boats each in the 6. Flotilla in Dranske (7. LTS-Brigade: Boats 911 - 915, 931 - 935, 951 - 955; 9. LTS-Brigade: Boats 921 - 925, 941 - 945, 961 - 965).

Libelle PtNo 952 in the German Naval Museum Wilhelmshaven

                                                         Pictures: U. Skrzypski

 Boat 945 sank 1986 after a collision with a Missile-S-Boat of OSA I-class(Projekt 205), one person was killed. Serial No. 131.410 Boat 925) was until summer 2008 in the Scientific Collection of Peter Tamm in Hamburg (today: Internationales Maritimes Museum)  - the boat was transferred to Luftfahrttechnisches Museum, Rechlin, while the Tamm-collection moved from Elbschaussee to Koreastrasse. Serial No. 131.422 (Boat 952) was initially at Schifffahrtsmuseum Rostock, now at  Deutsches Marinemuseum Wilhelmshaven, Serial-Nummer 131.426 (Boat 961) is at Militärhistorisches Museum Dresden,  and Serial-Nummer 131.408 (Boat 924) is in  Marinemuseum Stralsund/Dänholm . All other boats have been broken up. 

Libelle PtNo 925 until summer 2008 in Scientific Collection Peter Tamm, Hamburg - Pictures: K. Scheuch

Libelle PtNo 925 from summer 2008 in Luftfahrttechnisches Museum, Rechlin - Pictures: K. Scheuch

 Weapons of the KTS - Torpedoes, Mines, ZU 23 - Fotos: K. Scheuch

Bridge, at its side Minethrower, at the Stern ZU 23 with Weather-Shield- Fotos: K. Scheuch

Boat 924 at Marinemuseum Dänholm

Loading of Torpedo

Loading of Torpedo

Meeting of ex KTS- and LTS-Sailors at Rechlin 06.10.2012 - Picture: Uwe Weiß

Meeting of ex KTS- and LTS-Sailors at Rechlin 06.10.2012 - Picture: Uwe Weiß

 

 

 

Whereabouts of the Boats of Projekt 131

Boat-No. Name Commission DE- Commission Last Hull-Number Whereabouts
131.4 - 01.10.74 20.04.84 956 longtime testing, broken up
131.401 - 20.12.74 01.07.84 911 broken up
131.402 - 03.02.75 01.07.84 921 broken up
131.403 - 10.03.75 10.05.89 942 broken up
131.404 - 04.04.75 10.05.89 922 broken up
131.405 - 30.04.75 24.07.89 943 broken up
131.406 - 05.06.75 24.07.89 923 broken up
131.407 - 02.07.75 24.07.89 944 broken up
131.408 - 05.08.75 31.05.90 924 Museum Dranske
131.409 - 23.08.75 01.07.84 915 broken up
131.410 - 23.09.75 31.05.90 925 Initially at Institut für Schifffahrts- und Marinegeschichte, Hamburg; now at Luftfahrttechnisches Museum Rechlin
131.411 - 28.10.75 10.05.89 921 broken up
131.412 - 20.11.75 10.05.89 941 broken up
131.413 - 23.12.75 01.07.84 932 broken up
131.414 - 16.01.76 01.07.84 942 broken up
131.415 - 17.03.76 01.07.84 933 broken up
131.416 - 23.03.76 01.07.84 943 broken up
131.417 - 09.04.76 01.07.84 934 broken up
131.418 - 10.05.76 01.07.84 944 broken up
131.419 - 04.06.76 01.07.84 935 broken up
131.420 - 18.06.76 16.10.89 965 broken up
131.421 - 15.07.76 30.06.89 945 originally 970 after ramming broken up
131.422 - 20.08.76 24.07.82 961 Militärhistorisches Museum, Dresden
131.423 - 28.09.76 16.10.89 952 Initially at Schifffahrtsmuseum Rostock; now at Deutsches Marinemuseum, Wilhelmshaven
131.424 - 02.10.76 16.10.89 962 broken up
131.425 - 09.11.76 01.07.84 953 broken up
131.426 - 09.11.76 16.10.89 963 broken up
131.427 - 05.01.77 01.07.84 954 broken up
131.428 - 31.03.77 01.07.84 964 broken up
131.429 - 31.03.77 01.07.84 955 broken up
131.430 - 31.07.77 01.07.84 965 broken up