Martina (tunnel boring machine)

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{{Infobox ship class overview

| Name = Martina

| Builders = Herrenknecht AG

| Operators = *{{ITA}}

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| Cost = {{ShipCost|USA|60|m|year=2011}}

| Built range =

| In service range = 2011-2013

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| Total ships completed = 1

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| Total ships retired = 1

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{{Infobox ship career

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|Ship country =Italy

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|Ship name = Martina

|Ship namesake =

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|Ship builder =Herrenknecht AG

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|Ship commissioned =August 2011

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|Ship fate =Disassembled after July 29, 2013

|Ship notes =The largest hard rock tunnel boring machine ever built

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{{Infobox ship characteristics

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|Ship class =S-574-type Tunnel boring machine

|Ship tonnage ={{convert|4,500|t}}

|Ship length ={{convert|130|m|ft}}

|Ship beam ={{convert|15.62|m|ft|1|adj=mid

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|Ship power =Total: 18 MW (24,138.4 hp)

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