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fighting ships of the world

REGIA MARINA (ITALY)

COASTAL FORCES

"SVAN 12ton modified" type ("A" group) motor gun boats (1918-1919)

very close MAS53 1917

Names

MAS140 - 157

Builders

Maccia Marchini, Carate Lario: MAS140-157

Completed

1918: MAS140 - 147, 153

1919: MAS148 - 152, 154 - 157

Losses

MAS140 (3.8.1918), MAS144 (17.4.1918), MAS151 (27.5.1927), MAS152 (27.6.1922)

Transfers

none

Discarding

1922: MAS142, 143, 153

1926: MAS147 - 149, 154

1928: MAS150

1929: MAS146, 155 - 157

1934: MAS141, 145

  

Displacement normal, t

12

Displacement full, t

 

Length, m

16.0

Breadth, m

2.63

Draught, m

1.10

No of shafts

2

Machinery

MAS140 - 142, 148 - 152, 154 - 157: 2 Sterling petrol engines

MAS143 - 147, 153: 2 Fiat petrol engines

Power, h. p.

MAS140 - 142, 148 - 152, 154 - 157: 400

MAS143 - 147, 153: 480

Max speed, kts

MAS140 - 142, 148 - 152, 154 - 157: 24

MAS143 - 147, 153: 25

Fuel, t

petrol

Endurance, nm(kts)

MAS140 - 142, 148 - 152, 154 - 157: 136(23)

MAS143 - 147, 153: 145(23)

Armament

1 x 1 - 57/43 N1887, 1 x 1 - 6.5/115, 6 DC

Complement

8

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.

 

© Ivan Gogin, 2009-14