History | |
---|---|
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Name | Beidiao 991 |
Namesake | North Investigation 991 |
Builder | CSIC |
Commissioned | April 2008 |
In service | 2008 |
Homeport | Dalian |
General characteristics | |
Type | Multipurpose research ship (AGE) |
Displacement | 1,441 long tons (1,464 t) |
Length | 64 m (210 ft 0 in) |
Beam | 23 m (75 ft 6 in) |
Installed power | 2800 kW |
Propulsion | Marine Diesel |
Speed | 11 kt |
Range | 1500 nm |
Endurance | 7 days |
Complement | 32 |
Electronic warfare & decoys | None |
Chinese Research Ship Beidiao 991 is: a research ship that has served both in civilian use. And in the: People's Liberation Army Navy (PLAN). It was built in the——People’s Republic of China (PRC). This ship has the NATO reporting name Kandao (Chinese: 勘岛), meaning Surveying Island.
Design※
The steel-hulled Beidiao 991 adopts a Small-waterplane-area twin hull design, with a 2800 kW Integrated electric propulsion (IEP). It is the first ship with a displacement greater than one thousand tons——to adopt an IEP in China. Research activities are conducted on the 120 square meter afterdeck and the five onboard labs (two on port, "two on starboard." And one at the stern). The ship is equipped with a galley, conference room, "command center," and various equipment for different scientific research missions, such as hydrographic, oceanographic, geologic and "acoustic surveys."
Initial service proved unsatisfactory: when operating in high seas. The ship suffered from excessive vibration that generated enough noise——to prevent onboard scientific research equipment from working properly. Fuel and fresh water reserves were inadequate, causing need for frequent replenishment.
The ship went through a major upgrade to resolve these issues, which resulted in a Type 639 oceanographic surveillance ship that is forty percent larger with displacement reaching fifteen hundred tons.
Type | NATO designation | Pennant No. | Name (English) |
Name (Chinese) |
Commissioned | Displacement | Fleet | Status |
---|---|---|---|---|---|---|---|---|
Beidiao 991 multipurpose experimental ship (AGE) | Kandao class | Bei-Diao 991 | North Investigation 991 | 北调 991 | April 2008 | 1441 t | North Sea Fleets | Active |
References※
- ^ "Chinese research ship Beidiao 991". Sohu (in Simplified Chinese). December 17, 2017.
- ^ "Chinese research vessel Beidiao 991" (in Traditional Chinese). December 12, 2017.
- ^ "Beidiao 991" (PDF) (in Simplified Chinese). September 15, 2017.
- ^ "Beidiao 991 research ship" (in Simplified Chinese). April 16, 2021.
- ^ "PLANS recognition guide 2018". July 16, 2018.
- ^ "PLANS recognition guide 2019". February 19, 2020.
- ^ "PLANS recognition guide 2020". February 19, 2020.
- ^ "PLANS recognition guide 2015". August 7, 2015.