NAVYPEDIA

Ships

Name	No	Yard No	Builder	Laid down	Launched	Comm	Fate
Silbermöwe	P6052		Lürssen, Vegesack		21.1.1955	5/1956	stricken 3.1967, to Greece (Δράκων [Drakon])
Sturmmöwe	P6053		Lürssen, Vegesack		7.12.1954	5/1956	stricken 3.1967, to Greece (Δελφίν [Delfin])
Wildschwan	P6054		Lürssen, Vegesack		23.3.1955	5/1956	stricken 3.1967, to Greece (Πολυδεύκης [Polidefkis])
S1, 7.1956- Eismöwe	P6055		Lürssen, Vegesack		15.9.1955	12/1955 // 7.1956	stricken 3.1967, to Greece (Φοίνιξ [Foinix])
S2, 7.1956- Raubmöwe	P6056		Lürssen, Vegesack		27.10.1955	2/1956 // 7.1956	stricken 3.1967, to Greece (Πολικός [Polikos])
Seeschwalbe, 10.1960- UW9	P6057, 10.1960- W63		Lürssen, Vegesack		13.9.1956	4/1957	TS 10.1960, auxiliary 1.1964

Technical data

Displacement standard, t	109
Displacement full, t	155
Length, m	34.0 wl 35.6 oa
Breadth, m	5.20
Draught, m	1.60
No of shafts	3
Machinery	P6052-6056: 3 Mercedes-Benz diesels P6057: 3 Maybach diesels
Power, h. p.	9000
Max speed, kts	42
Fuel, t	diesel oil 13
Endurance, nm(kts)	900(34)
Armament	P6052-6056: 2 x 1 - 20/80 Mk 7 (HS804) P6057: 1 x 1 - 40/70 Bofors 350, 2 - 533 TT (4)
Electronic equipment	radar
Complement	19

Standard scale images

Project history

These boats were a modified repeat of the Kriegsmarine's wartime S-boats. They were designated as Type 149. The first three were ordered in February 1952 by the the Federal Home Office for the Federal Frontier Guard. But the projected speed of 43kts was prohibited under the terms of the Potsdam Conference and construction was stopped by the British Military Security Department. From the spring of 1953 construction of these boats continued, but officially on behalf of the Royal Navy. On 3 May 1955, after renewed negotiations, the Military Security Department gave permission for the construction of three more boats. The first three served with German crews under British command until their incorporation into the new navy on 29 May 1956. The fourth and fifth boats were commissioned by the Federal Frontier Guard (Naval) as S1 and S2 on 15 December 1955 and 2 February 1956 respectively. S1 and S2 were taken over by the navy on 1 July 1956 together with all the vessels of the Federal Frontier Guard (Naval).

Modernizations

1957, P6052-6056: - 2 x 1 - 20/80; + 1 x 1 - 40/70 Bofors 350, 2 - 533 TT (4)

Naval service

 The last boat Seeschwalbe was deleted on 1 October 1960 and became a training vessel UW9. In 1964 she was rebuilt and served under her new name Wilhelm Laudahn (Y839) for the Trials Command 71 especially carrying out trials of new engines with a civilian crew. She was frequently modified and rebuilt.