SM U-140

{{Infobox ship image

|Ship image=SM U 140 läuft 1918 SM U 117 bei den Faröern an.jpg

|Ship caption=SM U-140 comes alongside SM U-117 to be supplied with fuel, close to the Faroe Islands, 1918

}}

{{Infobox ship career

|Hide header=

|Ship country=German Empire

|Ship flag={{Shipboxflag|German Empire|naval}}

|Ship name=U-140

|Ship ordered=1 August 1916

|Ship builder=Germaniawerft, Kiel

|Ship yard number= 301

|Ship laid down=

|Ship launched=4 November 1917

|Ship commissioned=28 March 1918

|Ship decommissioned=

|Ship in service=28 March 1918 – 11 November 1918

|Ship refit=

|Ship struck=

|Ship fate=*Surrendered 23 February 1919

• Sunk as target 22 July 1921

|Ship homeport=

}}

{{Infobox ship characteristics

|Hide header=

|Header caption={{sfn|Gröner|1991|pp=19–21}}

|Ship class=Type U 139 submarine

|Ship displacement=*{{convert|1930|t|LT|abbr=on|lk=on}} surfaced

• {{convert|2483|t|LT|abbr=on}} submerged

|Ship length=*{{convert|92.00|m|ftin|abbr=on}} (o/a)

• {{convert|71.50|m|ftin|abbr=on}} (pressure hull)

|Ship beam=*{{convert|9.12|m|ftin|abbr=on}} (o/a)

• {{convert|5.75|m|ftin|abbr=on}} (pressure hull)

|Ship height={{convert|5.27|m|ftin|abbr=on}}

|Ship draught={{convert|11.20|m|ftin|abbr=on}}

|Ship power=*2 × {{convert|3500|PS|kW shp|abbr=on|lk=on|0}}

• 2 × {{convert|450|PS|kW shp|abbr=on|lk=on|0}} surfaced
• 2 × {{convert|1780|PS|kW shp|abbr=on|0}} submerged

|Ship propulsion=2 shafts, 2 × {{convert|2.10|m|ftin|abbr=on}} propellers

|Ship speed=*{{convert|15.8|kn|lk=in}} surfaced

• {{convert|7.6|kn}} submerged

|Ship range=*{{convert|17750|nmi|abbr=on|lk=in}} at {{convert|8|kn}} surfaced

• {{convert|53|nmi|abbr=on}} at {{convert|4.5|kn}} submerged

|Ship test depth={{convert|75|m|ftin|abbr=on}}

|Ship complement=6 (1) officers, 56 (20) enlisted – (prize crew)

|Ship armament=*6 × {{convert|50|cm|in|1|abbr=on}} torpedo tubes (four bow, two stern)

• 19-24 torpedoes
• 2 × 15 cm SK L/45 deck guns
• 2 × 8.8 cm SK L/30 naval gun deck guns

|Ship notes=

}}

{{Infobox service record

|is_ship=yes

|label=Service record{{cite Uboat.net

|id=140

|name=U 140

|type=1sub

|accessdate=8 December 2014

}}

|partof=*U-Kreuzer Flotilla

• Unknown start – 11 November 1918

|commanders=*K.Kapt. Waldemar Kophamel

• 28 March – 11 November 1918

|operations=1 patrol

|victories=

• 6 merchant ships sunk
  ({{GRT|30,004}})
• 1 lightship sunk
  (590 tons)

}}