SM U-139

{{Infobox ship image

|Ship image= U139.jpg

|Ship caption= German U-boat U-139

}}

{{Infobox ship career

|Hide header=

|Ship country=German Empire

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

|Ship name=U-139

|Ship ordered=1 August 1916

|Ship builder=Germaniawerft, Kiel

|Ship yard number= 300

|Ship laid down=

|Ship launched=3 December 1917

|Ship commissioned=18 May 1918

|Ship renamed=Halbronn

|Ship fate=Surrendered to France on 24 November 1918

|Ship homeport=

}}

{{Infobox ship career

|Hide header=title

|Ship country=France

|Ship flag={{shipboxflag|France|naval}}

|Ship class=

|Ship name=Halbronn

|Ship acquired=24 November 1918

|Ship decommissioned=24 July 1935

|Ship fate=Broken up

}}

{{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|3300|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|15.3|kn|lk=in}} surfaced

• {{convert|7.6|kn}} submerged

|Ship range=*{{convert|12630|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

|Ship notes=

}}

{{Infobox service record

|is_ship = yes

|label = Service record{{cite Uboat.net

|id=139

|name=U 139

|type=1sub

|accessdate=7 December 2014

}}

|partof=*U-Kreuzer Flotilla

• Unknown start – 11 November 1918

|commanders=*Kptlt. Lothar von Arnauld de la Perière

• 18 May – 11 November 1918

|operations=1 patrol

|victories=

• 3 merchant ships sunk
  ({{GRT|6,301}})
• 1 auxiliary warship sunk
  ({{GRT|487}})
• 1 auxiliary warship damaged
  ({{GRT|2,502}})

}}