NAVYPEDIA

Ships

Name	No	Yard No	Builder	Laid down	Launched	Comp	Fate
S631 (ex-MTB631)			Wm King, Burnham, UK			8.1942 // 12.1943	sunk 12.1943
S666 (ex-MGB666)			Dorset Yacht, Hamworthy, UK			6.1943 // 7.1944	sunk 8.7.1944

Technical data

Displacement standard, t	95
Displacement full, t	105
Length, m	35.1
Breadth, m	6.48
Draught, m	1.20
No of shafts	4
Machinery	4 Packard petrol engines
Power, h. p.	5000
Max speed, kts	31
Fuel, t	petrol 21
Endurance, nm(kts)	1200(10)
Armament	S631: 1 x 1 - 40/39 QF Mk VIII, 1 x 2 - 20/70 Oerlikon Mk VIII/IX, 2 x 2 - 12.7/62, 2 - 533 TT, 1 DCR (2) S666: 1 x 1 - 40/39 QF Mk VIII, 1 x 2 - 20/70 Oerlikon Mk VIII/IX, 2 x 2 - 12.7/92, 1 DCR (2)
Electronic equipment	type 291U or type 293 radar
Complement	14

Standard scale images

Project history

Former British boats of Fairmile D type. MTB631 ran aground and was captured at Norwegian coast 14.3.1943, commissioned by Kriegsmarine as S631. MGB666 was damaged and captured at Dutch coasts 5.7.1944, commissioned by Germans as S666.

Modernizations

None.

Naval service

S631 was sunk by British boats in December, 1943. S666 was lost 8.7.1944 as result of fire.