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FIGHTING SHIPS OF THE WORLD
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COASTAL FORCES
"SVAN 12ton modified" type ("A" group) motor torpedo boats (MAS158) (1917), "SVAN 12ton modified" type ("A" group) motor gun boats (MAS161) (1917 - 1918)
Ships
| Names | Builders | Completed | Losses | Transfers | Discarding |
|---|---|---|---|---|---|
MAS158 - 202 |
Picchiotti, Limite sull`Arno: MAS158 - 165 Gallinari, Livorno: MAS166 - 175 Piaggio, Sestri Ponente: MAS176 - 200 Foggi & Agretti, Livorno: MAS201, 202 |
1917: MAS166 1918: MAS158 - 164, 167 - 202 1919: MAS165 |
MAS160 (22.5.1927), MAS166 (12.11.1918), MAS178 (12.9.1930) |
none |
1921: MAS167 1922: MAS168, 169, 176, 177, 182, 201, 202 1925: MAS162, 163, 170 - 175, 180, 181, 183 - 187, 191 - 199 1926: MAS158, 159, 164 1929: MAS161, 165, 189 1930: MAS190 1931: MAS179, 200 1938: MAS188 |
Technical data
| Displacement normal, t | 11.2 |
|---|---|
| Displacement full, t | 12.1 - 12.2 |
| Length, m | 16.0 |
| Breadth, m | 2.63 |
| Draught, m | MAS158 - 165: 1.12 MAS166 - 202: 1.10 |
| No of shafts | 2 |
| Machinery | MAS158, 159, 164: 2 Sterling petrol engines MAS160 - 163, 165 - 202: 2 Fiat petrol engines |
| Power, h. p. | MAS158, 159, 164: 400 MAS160 - 163, 165 - 202: 480 |
| Max speed, kts | MAS158, 159, 164: 23 MAS160 - 163, 165, 176 - 200: 25 MAS166 - 175: 24.5 - 26.5 MAS201, 202: 24 |
| Fuel, t | petrol |
| Endurance, nm(kts) | MAS158, 159, 164: 180(20) MAS160 - 163, 165: 200(21) MAS166 - 175: 170(23) MAS176 - 202: 200(22) |
| Armament | MAS158 - 160, 166 - 168: 2 x 1 - 6.5/115, 2 - 450 TT, 6 DC MAS161 - 165, 169 - 202: 1 x 1 - 57/43 N1887, 1 x 1 - 6.5/115, 6 DC |
| Complement | 8 |
Standard scale images
sister-boat MAS95 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.
