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COASTAL FORCES
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


Technical data


Displacement standard, t68
Displacement full, t70
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


<i> S621</i> 1944
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

No significant events.