S621 torpedo boats (1943

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S621 torpedo boats (1943 - 1944)

Ships

Names	Builders	Commissioned	Losses	Transfers	Discarding
S621 - S628, S629 (ex-MS76), S630 (ex-MS75)	CRDA, Monfalcone, Italy: S621 - 630	1943 // 1944: S629, 630 5 - 8.1944: S621, 623, 626 - 628	S622 (14.5.1944), 624 (14.5.1944), 625 (14.5.1944) - incomplete S623 (5/1945), S629 (4/1945)	Italy, 1945: S630 (MS75)	surrendered 5.1945: S621, 626, 627, 628, 630

Names

Builders

Commissioned

Losses

Transfers

Discarding

S621 - S628, S629 (ex-MS76), S630 (ex-MS75)

CRDA, Monfalcone, Italy: S621 - 630

1943 // 1944: S629, 630

5 - 8.1944: S621, 623, 626 - 628

S622 (14.5.1944), 624 (14.5.1944), 625 (14.5.1944) - incomplete

S623 (5/1945), S629 (4/1945)

Italy, 1945: S630 (MS75)

surrendered 5.1945: S621, 626, 627, 628, 630

Technical data

Displacement standard, t	68
Displacement full, t	70
Length, m	28.0
Breadth, m	4.30
Draught, m	1.75
No of shafts	3
Machinery	S621 - 628: 3 Isotta-Fraschini ASM183 petrol engines / 1 Alfa Romeo petrol engine for cruising S629: 3 Isotta-Fraschini ASM185 petrol engines S630: 3 Isotta-Fraschini ASM183 petrol engines
Power, h. p.	S621 - 628: 3300 / 100 S629: 4500 S630: 3300
Max speed, kts	S621 - 628: 31 / 5.7 S629: 35 S630: 31
Fuel, t	S621 - 628: petrol 8.1 S629, 630: petrol 7.2
Endurance, nm(kts)	300(31)
Armament	2 x 1 - 20/65 M1940, 2 - 533 TT (4), 4 mines
Complement	19

Standard scale images

S621 1944

Project history

Former Italian MTBs of MS type 3rd series, built by CRDA on the sample of the Yugoslavian boats. In September, 1943 they were captured (Only MS75 and MS76 were completed that time) and included to German fleet list. MS75 and 76 were initially transferred to RSI but reverted in 1944 to German navy.

Modernizations

None.

Naval service