Type 917 rescue ship
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Type 917 rescue ship is a type of rescue and salvage ship developed by China for its People's Liberation Army Navy (PLAN). A total of two ships have entered service by mid-2014, and more units are planned.
Type 917 is the first ship in PLAN to adopt a trimaran hull. The advantage of trimaran include stability and high speed in rough seas, and large deck area equivalent to much larger ship, thus enabling small ship to carry helicopter that can only be carried by larger ships in traditional monohull design. Designed by the Multihull Ship Technology National Defense Important Academic Majors Laboratory (多体船技术国防重点学科实验室) of Harbin Engineering University, Type 917 carries a pair of newly designed rescue boat, with one on each side, stored in the davit position.[1] The ship is equipped with a newly designed H/PJ14 single 30 mm gun controlled by electro-optical sensor.[2] Type 917 series in PLAN service are designated by a combination of two Chinese characters followed by three-digit number. The second Chinese character is Jiu (救), meaning rescue in Chinese, because these ships are classified as rescue ship. 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 may have changed due to the change of Chinese naval ships naming convention.
| Type | Pennant # | Commissioned | Status | Fleet |
| 917 | Bei-Jiu 143 | 2012 | Active | North Sea Fleet |
| 917 | Dong-Jiu 335 | ― | Active | East Sea Fleet |
