SJT-class ROUV

SJT-class ROUVs are a series of Chinese remotely operated underwater vehicles (ROUVs) jointly developed by the Shenyang Institute of Automation of the Chinese Academy of Science and the Institute of Underwater Engineering of Shanghai Jiao Tong University (SHJTU).^[1][2][3] The general designer of the SJT-class of ROUVs is Zhu Jimao (朱继懋), a professor at SHJTU, who also was the general designer of the earlier Type 7103 DSRV. Many more ROUVs have been developed after the SJT series, based on experience gained from this series.

HR-01 ROUV

The origin of SJT-class ROUV begins with HR-01 (Chinese: 海人一号; pinyin: Hai-Ren Yi-Hao; lit. 'Sea Person # 1'), one of the first indigenously developed ROUVs. Work began in 1982 and was completed in winter 1985,^[3] entering service the following year.^[4] In 1989, it won 2nd place in the Science and Technology Advance Award of the Chinese Academy of Science.^[3] Based on experience gained from HR-01, the three subsequent SJT-class ROUVs were jointly developed with a Canadian company^[which?] from 1985 through June 1987.^[3]

Specifications:^[1][2][3][4]

• Weight: 2.2 tons
• Length: 3.1 meters
• Width: 1.5 meters
• Height: 1.9 meters
• Maximum operating depth: 200 meters

HR-01 is equipped with two lowlight TV cameras, 1 photo camera, 1 manipulator, and four hydraulic-driven propulsors.

SJT-5 ROUV

SJT-5 ROUV is a micro ROUV used for underwater observation. Equipped with underwater color television and a high-power searchlight, it could provide clear underwater images and record the photos taken. In addition, T-5 is equipped with four electrically powered propellers,^[1] allowing it to perform complex underwater maneuvers to obtain the optimum position for observation.

Specifications:^[1]

• Weight: 12 kg
• Length: 58 cm
• Width: 46 cm
• Height: 25 cm
• Propulsion: 4 electrically powered propellers
• Underwater television: New Vicon color TV
• Elevation and depression: +30 to -45 degrees
• Tether diameter: 12 mm
• Maximum tether tension: 290 kg
• Maximum operating depth: 150 meters

SJT-10 ROUV

SJT-10 ROUV is a light ROUV with a single manipulator,^[3] and now is primarily used for underwater works on offshore oil platforms.^[3] The secondary application of SJT-10 is salvage. Other applications included similar jobs for underwater structures in inland waterways. The aluminum-framed SJT-10 is equipped with a digitized depth gauge, compass, sonar, lowlight TV camera, and an onboard computer.^[1][2][5]

SJT-40 ROUV

SJT-40 ROUV is the most capable member of the SJT-class ROUVs and also one of the deepest-diving: up to 400 meters.^[3] SJT-40 ROUV has two manipulators and is capable of performing a variety of underwater tasks. Like other SJT-class ROUVs, it is in service with both civilian and military operators, mainly in underwater maintenance work of oil platforms and other structures.^[3] Like its smaller cousin SJT-10, the aluminum-framed SJT-40 is also equipped with a digitized depth gauge, digitized compass, sonar, lowlight TV camera, and an onboard computer.^[1][2]

HR-02 ROUV

Based on experience gained from HR-01 development, SHJTU developed the HR-02 ROUV, which is a small ROUV^[6] intended to work in confined spaces underwater.

HR-03 ROUV

Similar to its predecessor, HR-03 is also a small ROUV^[6] capable of performing additional tasks besides observation, such as sample collection and underwater construction.

Heavy engineering ROUV

Heavy engineering ROUV is a heavy ROUV developed by SHJTU for underwater inspection, maintenance, and construction works up to a depth of 1,500 meters. It is equipped with two manipulators, seven cameras, nine lights, and a sonar.^[7]

Specifications:^[7]

• Length: 2.23 meters
• Width: 0.9 meters
• Height: 1.21 meters
• Weight: 4.5 tons
• Speed: 3 knots
• Power: 50 HP
• Maximum operating depth: 1,500 meters
• Depth positioning accuracy: ± 0.05 meters
• Directional positioning accuracy: ± 1.2°

Max electrical ROUV

Max electrical ROUV is an electrically powered ROUV developed by SHJTU for underwater inspection, maintenance, and construction works up to a depth of 1,000 meters. It is equipped with two manipulators, five cameras, four to six lights, and up to two sonars, based on customer requests.^[8]

Specifications:^[8]

• Length: 2.48 meters
• Width: 1.3 meters
• Height: 1.5 meters
• Weight: 0.8 tons
• Payload: 150 kg
• Speed: 2.97 knots
• Power: 65 HP
• Maximum operating depth: 1,000 meters
• Depth positioning accuracy: ± 0.2 meters
• Directional positioning accuracy: ± 1.2°

Medium engineering ROUV

Medium engineering ROUV is a mid-sized ROUV developed by SHJTU for underwater inspection, maintenance, and construction works up to a depth of 500 meters. It is equipped with two manipulators, five cameras, six lights, and a sonar.^[9]

Specifications:^[9]

• Length: 2.48 meters
• Width: 1.3 meters
• Height: 1.5 meters
• Weight: 1.762 tons
• Payload: 150 kg
• Speed: 2.97 knots
• Power: 65 HP
• Maximum operating depth: 500 meters
• Depth positioning accuracy: ± 0.2 meters
• Directional positioning accuracy: ± 1.2°

ST-6000 ROUV

ST-6000 is an ROUV designed for deep-sea observation missions; it was completed in June 1995.^[1][2] ST-6000 is capable of operating to a depth of 6,000 meters. On 30 September 1995, it reached a depth of 5,200 meters.^[1][2]

Dragon Emperor ROUV

Dragon Emperor (龙皇; Long-Huang) ROUV is a development of the ST-6000 ROUV. Like its predecessor, Dragon Emperor is also used for deep-sea observation. As an experimental ROUV, it is primarily intended for evaluation and validation of subsystems for future ROUVs designed to operate at great depths.^[2] In comparison to its predecessor, Dragon Emperor ROUV can operate at much greater depth, with its maximum operating depth increased by two-thirds, to 10,000 meters.^{[2][10][11][12][13]}

HR-1-100 ROUV

HR-1-100 is a miniature underwater observation vehicle based on the technologies of the much larger HR-01. Since it only performs observation tasks, it is greatly simplified. In addition to a drastic reduction of size and weight, it does not have a manipulator, and the maximum operational depth is reduced by half, to 100 meters.^[4] HR-1-100 entered service in 1997.^[4]

Specifications:^[4]

• Weight: 32 kg
• Maximum operational depth: 100 meters

JH-01 ROUV

Another member of SJT class ROUV is JH-01 (交海; Jiao-Hai; 'Transportation Sea') ROUV, which is specifically designed to meet the urgent need for an ROUV for underwater dam inspection and maintenance. The first customer of the JH-01 was Hai He Hydraulic Works Committee,^[1][2] and its satisfactory performance led to more orders from different customers, including the People's Liberation Army Navy (PLAN), which deployed JH-01 for breakwater inspection and maintenance.

Specifications:^[1][2]

• Weight: 37 kg
• Maximum operating depth: 60 meters

8H4 ROUV

8H4 ROUV is a development of JH-01, and it is capable of operating at a depth ten times that of JH-01.^[3] Equipped with two manipulators, 8H4 ROUV can perform various tasks underwater, such as cutting and welding.^[3]

Specifications:^[3]

• Maximum operating depth: 600 meters

JTD-01 Deep Eel I ROUV

Based on experience gained from earlier ROUVs, SHJTU developed JTD-01 Deep Eel (深鳗; Shen-Man) I ROUV specifically for underwater salvage operations.^[2] In December 2012, Deep Eel I ROUV was successfully deployed in salvage work at the mouth of Pearl River.^[2]

Specifications:^[14]

• Length: 9.1 meters
• Width: 4.1 meters
• Height: 4.5 meters
• Weight: 40 tons
• Maximum operating depth: 200 meters

Walrus 1500 ROUV

Walrus 1500 ROUV is a ROUV developed by SHJTU for underwater inspection, maintenance, and construction works up to a depth of 1,500 meters. It is equipped with manipulators, cameras, and lights.^[15]

Specifications:^[15]

• Maximum operating depth: 1,500 meters

References

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651, 704, 728, Dong-Tuo 845, 861, Nan-Tuo 142, 163, 168, 176, 187, 188 UAV mothershps (ATLS) Fighting Shark No.1 Yanxi class AGM/AVM/ATLS Unmanned surface vehicles (USV) CASIC USVs Chinese Sea Hunter Sky Journey 1 HUST USVs JARI USV JUST USV Ostar USVs PWT USV Shanghai University USV Type 80 demolition boat VVLAI USV WSST USVs Yunzhou USVs Unmanned underwater vehicles (UUV) Autonomous underwater vehicle (AUV) CR series Explorer series HSU-001 Intelligent Water class JUST AUVs Micro Dragon Series Orange Shark series Ostar AUVs Poseidon series Robosea AUVs Sea Clever Sea Whale series Submerged Dragon series THLMT AUVs Wukong WZODA XTDT Benthic landers CAS series Rainbowfish series Bottom crawlers Aquadrobotman series CSSC series Deepinfar series JUST series Robosea series SBSS series Sea Crab Sea Star THLMT unmanned vehicles#Underwater series VVLAI series Hybrid UUVs (Autonomous remotely -operated vehicles, ARVs) 7B8 Arctic series Hadal Hadal 1 Rainbowfish ARV Remotely operated underwater vehicle (ROUV) 8A4 8H4 Aquarobotman ROUV Deepinfar ROUVs Discovery Dragon Emperor Dragon Pearl Goldfish series JH-01 (Jiao-Hai 01) JTD-01 Deep Eel I JTML-02 JTMP series JTR series JUST ROUVs Max ROV Oceanxer ROUVs Ostar ROUVs PWT ROUV RECON-IV ROUV Robosea ROUVs SBSS ROUVs Sea Dragon series Sea Person (Hai-Ren/HR) series Sea Pole Sea Star 6000 Sea Submergence series SJT series ST-6000 THLMT ROUVs VVLAI ROUVs Walrus 1500 Underwater gliders Flying Wing Petrel series Sea Soar series Deepinfar Sea Wing series THLMT series Wave gliders CSSC series Hydrovo series Ostar series THLMT Black Pearl Weapon trials ships (AVM/AGM) Type 909 Wuhu-B class Type 909A Dahua class Type 910 Dahua-II class

* = Under construction or procurement, ^CG= Classified as guided missile cruiser by NATO, ^FF= Classified as light frigate by PLAN