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Type 792
naval trawler Naval trawlers are vessels built along the lines of a fishing trawler but fitted out for naval purposes; they were widely used during the World War I, First and World War II, Second World Wars. Some, known in the Royal Navy as "Admiralty trawlers ...
is a Chinese
auxiliary ship An auxiliary ship is a naval ship designed to support combatant ships and other naval operations. Auxiliary ships are not primary combatant vessels, though they may have some limited combat capacity, usually for purposes of self-defense. Auxili ...
of the
People's Liberation Army Navy The People's Liberation Army Navy, also known as the People's Navy, PLA Navy or simply Chinese Navy, is the naval warfare military branch, branch of the People's Liberation Army, the national military of the People's Republic of China. It i ...
(PLAN), deployed as intelligence gathering
spy ship A spy ship or reconnaissance vessel is a dedicated ship intended to gather intelligence, usually by means of sophisticated electronic eavesdropping. In a wider sense, any ship intended to gather information could be considered a spy ship. Sp ...
. Type 792 and its predecessor Type 8154, along with Type 8105 naval trawlers have all received
NATO reporting name NATO uses a system of code names, called reporting names, to denote military aircraft and other equipment used by post-Soviet states, former Warsaw Pact countries, China, and other countries. The system assists military communications by providi ...
FT-14 AIT class, meaning Fishing Trawler - 14 Auxiliary Intelligence-gathering Trawler.


Type 8101 naval trawler

The origin of the Type 792 naval trawler can be traced back to the Type 8101 naval trawler, which is one of the follow–on types of the Type 8105 naval trawler. Due to the insufficient speed of Type 801, the Chinese navy needed a more powerful ship when performing intelligence gathering missions, and thus selected the 600 horsepower Type 8101
fishing trawler A fishing trawler is a commercial fishing vessel designed to operate fishing trawls. Trawling is a method of fishing that involves actively dragging or pulling a trawl through the water behind one or more trawlers. Trawls are fishing nets tha ...
that was developed in 1975. Along with Type 8105 naval trawler, Type 8101 naval trawler has been produced in higher numbers than their predecessors, and both had been equipped with rudimentary
COMINT Signals intelligence (SIGINT) is the act and field of intelligence-gathering by interception of ''signals'', whether communications between people (communications intelligence—abbreviated to COMINT) or from electronic signals not directly u ...
gears in addition to handheld cameras. Specification: *Speed: 11 kt *Displacement: 200 ton Before
Chinese economic reform Reform and opening-up ( zh, s=改革开放, p=Gǎigé kāifàng), also known as the Chinese economic reform or Chinese economic miracle, refers to a variety of economic reforms termed socialism with Chinese characteristics and socialist marke ...
, it was relatively easy for the PLAN to command private vessels for military use in emergencies when everything was government-owned in a
planned economy A planned economy is a type of economic system where investment, production and the allocation of capital goods takes place according to economy-wide economic plans and production plans. A planned economy may use centralized, decentralized, ...
, but this has become increasingly difficult to do after the reform due to private ownership. However, PLAN has to keep a very large number of auxiliary minesweepers to prepare for war, and as a result, when Type 8105 and earlier Type 113, Type 801 naval trawlers had retired from their intelligence gathering role, they were converted to auxiliary minesweepers and placed in operational reserve of PLAN. In addition,
environmental problems Environmental issues are disruptions in the usual function of ecosystems. Further, these issues can be caused by humans (human impact on the environment) or they can be natural. These issues are considered serious when the ecosystem cannot recov ...
have caused constant geological/geographical/hydrographical changes in Chinese waters, hence creating huge survey requirement, thus a number of these retired spy ships have also been converted to survey vessels to meet the extremely heavy hydrographic survey requirement. In late June 1979, Type 8101 naval trawler along with Type 8105 naval trawler participated in the shadowing former-
Soviet aircraft carrier Minsk ''Minsk'' () is an aircraft carrier (heavy aircraft cruiser in Russian classification) that served the Soviet Navy and the Russian Navy from 1978 to 1994. She was the second vessel to be built. From 2000 to 2016 she was a theme park known as M ...
task force in the
South China Sea The South China Sea is a marginal sea of the Western Pacific Ocean. It is bounded in the north by South China, in the west by the Indochinese Peninsula, in the east by the islands of Taiwan island, Taiwan and northwestern Philippines (mainly Luz ...
, a mission failed because the slow speed of both types meant that they could not keep up with the targets even when targets were sailing at
cruise speed Cruise is the phase of aircraft flight from when the aircraft levels off after a climb until it begins to descend for landing. Cruising usually comprises the majority of a flight, and may include small changes in heading (direction of flight), ...
. As a result, both Type 8101 and 8105 have to be deployed in-place on
sea lane A sea lane, sea road or shipping lane is a regularly used navigable route for large water vessels (ships) on wide waterways such as oceans and large lakes, and is preferably safe, direct and economic. During the Age of Sail, they were determined ...
s to wait for their intended targets to pass, like their predecessors when performing intelligence gathering duties.


Type 8154 naval trawler

Based on the feedback from civilian customers, the developer of the Type 8101 trawler greatly enhanced the design to improve the operability in heavy seas, resulting in a faster Type 8154 trawler completed in 1981. However, deployment in PLAN hands revealed that the 12.2 kt speed is simply too slow to shadow targeted foreign fleet at cruise speed. As a result, those Type 8154 trawlers that entered PLAN service were upgraded with 800 hp to reach a speed of 15.5 kt, and eventually, 960 hp engine to reach 16 kt speed. Some Type 8154 are also equipped with satellite communication antenna for long range missions. Specification: *Length: 47 meter *Beam: 8.2 meter *Depth: 4 meter *Draft: 3.04 meter *Propulsion: 960 hp *Displacement: 600 ton *Speed: 16 kt *Crew: 17 Due to its large size, unlike its retired predecessors that were only converted to hydrographic
survey vessel A survey vessel is any type of ship or boat that is used for underwater surveys, usually to collect data for mapping or planning underwater construction or mineral extraction. It is a type of research vessel, and may be designed for the pu ...
s and auxiliary
minesweeper A minesweeper is a small warship designed to remove or detonate naval mines. Using various mechanisms intended to counter the threat posed by naval mines, minesweepers keep waterways clear for safe shipping. History The earliest known usage of ...
s, when Type 8154 retired from intelligence gathering missions, it was also converted to auxiliary
minelayer A minelayer is any warship, submarine, military aircraft or land vehicle deploying explosive mines. Since World War I the term "minelayer" refers specifically to a naval ship used for deploying naval mines. "Mine planting" was the term for ins ...
s and ambulance ships in addition to the usual minesweeper and survey ships. Some of retired Chinese naval Type 8154 trawlers were also transferred to
PLA ground force The People's Liberation Army Ground Force (PLAGF), also referred to as the PLA Army, is the land-based service branch of the People's Liberation Army (PLA), and also its largest and oldest branch. The PLAGF can trace its lineage from 1927 as ...
to continue their intelligence gathering mission.


Type 792 naval trawler

A decade after Type 8154 entered service, its successor Type 792 naval trawler entered the Chinese navy service. Due to automation, the larger Type 792 requires a lesser crew to man it. Design began in 1983, and passed acceptance certification in 1989. Unlike its predecessors that begun as a
fishing trawler A fishing trawler is a commercial fishing vessel designed to operate fishing trawls. Trawling is a method of fishing that involves actively dragging or pulling a trawl through the water behind one or more trawlers. Trawls are fishing nets tha ...
and then converted to the naval trawler, Type 792 was sole designed as a naval trawler, to begin with, and it was only later when the fishing version appeared. Specification: *Draft: 3.04 meter *Displacement: 600 ton In comparison to its predecessors that served their intelligence-gathering role for several decades, some of Type 792 have already been converted to auxiliary minesweepers and placed in operational reserve relatively early due to the availability of larger spy ships.


Ships

PLAN has begun to retire Type 8101 and 8154 from front-line spy missions, and convert them to perform mine warfare and hydrographic survey missions. Type 792 in active intelligence gathering missions have been identified, but there are also additional units performing mine warfare and hydrographic survey missions.


References

{{Ship classes of the Chinese Navy, state=uncollapsed Auxiliary ships of the People's Liberation Army Navy