NAVYPEDIA

Photo

  SG1 Many thanks to Wolfgang Stöhr for additional information on this page.

Ships

Name	No	Yard No	Builder	Laid down	Launched	Comp	Fate
SG1 (ex-Merkur, ex-Jupiter, ex-Sans Peur)		S9	A C de St. Nazaire - Penhoët	1940	2.10.1940	8.1942	surrendered 5.1945, to France 5.1945 (5/1947 survey vessel Beautemps Beaupré)
SG2 (ex-Uranus, ex-Saturn, ex-Sans Reproche)		T9	A C de St. Nazaire - Penhoët	1938	30.10.1940	9.1942	damaged 8.5.1943, sunk 23.9.1943
SG3 (ex-Jupiter, ex-Uranus, ex-Sans Souci)		311	A C de la Loire, St. Nazaire	1938	28.11.1940	11.1942	sunk 6.8.1944
SG4 (ex-Saturn, ex-Merkur, ex-Sans Pareil)		312	A C de la Loire, St. Nazaire	1939	28.11.1940	9.1943	surrendered 5.1945, to France 5.1945 (5/1947 survey vessel La Pérouse)

Technical data

Displacement standard, t	1500
Displacement full, t	2100
Length, m	92.0 wl 95.0 oa
Breadth, m	11.8
Draught, m	3.20 normal, 3.64 max
No of shafts	2
Machinery	2 Sulzer diesels
Power, h. p.	4140
Max speed, kts	16.7
Fuel, t	diesel oil 256
Endurance, nm(kts)	12000(10)
Armament	SG1: 3 x 1 - 105/42 SK C/32, 2 x 2 - 37/80 SK C/30, 6 x 2 - 20/65 C/38 SG2: 2 x 1 - 105/42 SK C/32, 6 x 2 - 20/65 C/38, 2 x 1 - 13.2/92, 4 x 1 - 86 R Ag M42/43 AA RL SG3: 3 x 1 - 105/42 SK C/32, 2 x 2 - 37/80 SK C/30, 7 x 2 - 20/65 C/38 SG4: 2 x 1 -105/42 SK C/32, 2 x 2 - 37/80 SK C/30, 6 x 2 - 20/65 C/38
Complement	178

Standard scale images

Graphics

Project history

Former French seaplane tenders, captured by German troops in St. Nazaire on the stocks in June, 1940 at various availability stages. It was originally planned to complete them as air defence and fighter direction ships (Flügsicherungsschiffe) under names Uranus, Saturnus, Jupiter and Merkur. In February, 1941, control on building was transferred to ministry of aviation, however in April, 1942 the control was returned to Kriegsmarine, and ex-depot ships were completed as fast escorts (Schnelle Geleitboote) SG1-4. They were armed by German artillery, purposed, first of all, on AA role. During service hull weakness and bad seaworthiness have come to light.

Modernizations

1943-1944, both survived: + FuMO 28 radar

Naval service

All operated in in waters of Western France. SG1 in August, 1943 was damaged on a mine and not repaired till the end of war; in 1945 she was returned to France, named Beautemps Beaupre and BU in 1973. SG2 8.5.1943 was damaged by explosions of three mines and never repaired; 23.9.1943 she was sunk at Nantes by British aircraft. SG3 6.8.1944 was sunk by British aircraft in a mouth of Gironde. SG4 in 1945 was returned to France, named La Perouse and BU in 1969.



Many thanks to Wolfgang Stöhr for additional information on this page.