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FIGHTING SHIPS OF THE WORLD
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COASTAL FORCES
"SVAN 12ton" type (modified "A" group) motor gun boats (MAS58) (1917)
Ships
| Names | Builders | Completed | Losses | Transfers | Discarding |
|---|---|---|---|---|---|
MAS58 - 62 |
SVAN, Venezia: MAS58-62 |
1917: MAS58 - 62 |
none |
none |
1921: MAS60 1922: MAS61 1923: MAS59 1926: MAS58, 62 |
Technical data
| Displacement normal, t | MAS58: 12.5 MAS59 - 62: 11.9 |
|---|---|
| Displacement full, t | |
| Length, m | 16.0 |
| Breadth, m | 3.03 |
| Draught, m | MAS58: 1.25 MAS59 - 62: 1.20 |
| No of shafts | MAS58: 3 MAS59 - 62: 2 |
| Machinery | MAS58: 3 Sterling petrol engines MAS59 - 62: 2 Sterling petrol engines |
| Power, h. p. | MAS58: 600 MAS59 - 62: 400 |
| Max speed, kts | MAS58: 25 MAS59 - 62: 22 - 23 |
| Fuel, t | petrol |
| Endurance, nm(kts) | MAS58: 140(25) MAS59 - 62: 200(22) |
| Armament | 1 x 1 - 47/40 H1901, 1 x 1 - 6.5/115, 6 DC |
| Complement | 8 |
Standard scale images
very close MAS53 1917
Project history
So-called "12-ton" boats designed by A. Bisio (SVAN) and built by different builders in 1916-1918. Boats differed from each other by armaments and engines. Some (1, 4 and 6th series) were extra equipped with 10hp electric motors for silent running.
Modernizations
None.
Naval service
No significant events.
