View source for Duda-class tug

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|Ship country= [[People's Republic of China|PRC]]
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|Ship class= Duda class
|Ship type= [[Tug]]
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|Ship length={{Convert|31|m|ftin|abbr=on}}
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'''Duda class''' large harbor [[tug]] ('''YTB''') is a class of little known naval [[auxiliary ship]] currently in service with the [[People's Liberation Army Navy]] (PLAN),<ref name=SNC>{{cite web| url=http://tieba.baidu.com/p/2248655005?pn=7 | title=Beituo 632 class tug | access-date=5 August 2015 }}</ref><ref name=csr2018>{{cite web| url=https://www.andrewerickson.com/2018/07/onis-new-2018-china-recognition-identification-guide-shows-3-different-types-of-maritime-militia-vessels/ | title=PLANS recognition guide 2018| date=July 16, 2018}}</ref><ref name=csr2019>{{cite web| url=https://www.oni.navy.mil/Portals/12/Intel%20agencies/China_Media/2020_China_Recce_Poster_UNCLAS.jpg?ver=2020-02-19-081430-327 | title=PLANS recognition guide 2019| date=February 19, 2020}}</ref><ref name=csr2020>{{cite web| url=https://www.andrewerickson.com/2020/02/office-of-naval-intelligence-just-published-latest-china-russia-maritime-ship-recognition-guides/ | title=PLANS recognition guide 2020| date=February 19, 2020}}</ref><ref name=csr2015>{{cite web| url=https://news.usni.org/2015/08/07/document-office-of-naval-intelligence-chinese-military-and-coast-guard-ship-identification-guide | title=PLANS recognition guide 2015| date=August 7, 2015}}</ref> and has received [[NATO reporting name]] '''Duda class''',<ref name=csr2018/><ref name=csr2019/><ref name=csr2020/><ref name=csr2015/> with exact type still remains unknown.
A total of eleven of this class have been confirmed in active service as of 2022<ref name=SNC/><ref name=csr2018/><ref name=csr2019/><ref name=csr2020/><ref name=csr2015/> Unlike other tugs in Chinese service, This class is the only tug having a chimney with rectangular/square cross section, and thus easily distinguishable by the sharp edges of the chimney.<ref name=SNC/>

Ships of this class in PLAN service are designated by a combination of two Chinese characters followed by a three-digit number. The second Chinese character is Tuo (拖), meaning tug in Chinese, because these ships are classified as [[tugboat]]s. The first Chinese character denotes which fleet the ship is service with, with East (Dong, 东) for [[East Sea Fleet]], North (Bei, 北) for [[North Sea Fleet]], and South (Nan, 南) for [[South Sea Fleet]]. However, the pennant numbers are subject to change due to changes of Chinese naval ships naming convention, or when units are transferred to different fleets. Specification:<ref name=csr2018/><ref name=csr2019/><ref name=csr2020/><ref name=csr2015/>
*Length: 31 meter
{| class="wikitable sortable"  style="margin:auto; width:100%;"
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! style="text-align:center; width:16%;"| Type
! style="text-align:center; width:12%;"| [[NATO reporting name|NATO designation]]
! style="text-align:center; width:10%;"| [[Pennant number|Pennant No.]]
! style="text-align:center; width:10%;"| Name<br>(English)
! style="text-align:center; width:10%;"| Name<br>(Han 中文)
! style="text-align:center; width:10%;"| [[Ship commissioning|Commissioned]]
! style="text-align:center; width:10%;"| Displacement
! style="text-align:center; width:10%;"| Fleet
! style="text-align:center; width:10%;"| Status
|-
| rowspan="11" |Duda class large harbor tug (YTB)|| rowspan="11" | Duda class || Bei-Tuo 632 || North Tug 632 || 北拖 632 || ? ||? [[Tonne|t]]||North Sea Fleet || <span style="color:green">Active</span style="color:green">
|-
| Bei-Tuo 681 || North Tug 681 || 北拖 681 || ? ||? [[Tonne|t]]||North Sea Fleet || <span style="color:green">Active</span style="color:green">
|-
| Bei-Tuo 685 || North Tug 685 || 北拖 685 || ? ||? [[Tonne|t]]||North Sea Fleet || <span style="color:green">Active</span style="color:green">
|-
| Bei-Tuo 769 || North Tug 769 || 北拖 769 || ? ||? [[Tonne|t]]||North Sea Fleet || <span style="color:green">Active</span style="color:green">
|-
| Dong-Tuo 874 || East Tug 874 || 东拖 874 || ? ||? [[Tonne|t]]||East Sea Fleet || <span style="color:green">Active</span style="color:green">
|-
| Dong-Tuo 876 || East Tug 876 || 东拖 876 || ? ||? [[Tonne|t]]||East Sea Fleet || <span style="color:green">Active</span style="color:green">
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| Dong-Tuo 878 || East Tug 878 || 东拖 878 || ? ||? [[Tonne|t]]||East Sea Fleet || <span style="color:green">Active</span style="color:green">
|-
| Dong-Tuo 879 || East Tug 879 || 东拖 879 || ? ||? [[Tonne|t]]||East Sea Fleet || <span style="color:green">Active</span style="color:green">
|-
| Nan-Tuo 172 || South Tug 172 || 南拖 172 || ? ||? [[Tonne|t]]||South Sea Fleet || <span style="color:green">Active</span style="color:green">
|-
| Nan-Tuo 176 || South Tug 176 || 南拖 176 || ? ||? [[Tonne|t]]||South Sea Fleet || <span style="color:green">Active</span style="color:green">
|-
| Nan-Tuo 177 || South Tug 177 || 南拖 177 || ? ||? [[Tonne|t]]||South Sea Fleet || <span style="color:green">Active</span style="color:green">
|}

==References==
{{Reflist|2}}

{{Ship classes of the Chinese Navy|state=uncollapsed}}

[[Category:Auxiliary tugboat classes]]
[[Category:Auxiliary ships of the People's Liberation Army Navy]]