China is developing a warship of naval theorists' dreams

An arsenal ship that can be submerged in water.

With distinctive twin conning towers, this arsenal ship can hide under the waves or move on the surface at higher speeds.

The Chinese navy is taking arsenal ships in a new direction—as giant submersibles. Post-Cold War naval theorists have long dreamed of recreating the old battleships' power through massive "arsenal ships," or warships carrying hundreds of guided missiles that could fire at land and sea targets. Now it looks like China wants to make that dream a reality.

Click through images of China's military might:

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China's first domestically built aircraft carrier is seen during its launching ceremony in Dalian, Liaoning province, China, April 26, 2017. REUTERS/Stringer ATTENTION EDITORS - THIS IMAGE WAS PROVIDED BY A THIRD PARTY. EDITORIAL USE ONLY. CHINA OUT. NO COMMERCIAL OR EDITORIAL SALES IN CHINA.
China's first domestically built aircraft carrier is seen during its launching ceremony in Dalian, Liaoning province, China, April 26, 2017. REUTERS/Stringer ATTENTION EDITORS - THIS IMAGE WAS PROVIDED BY A THIRD PARTY. EDITORIAL USE ONLY. CHINA OUT. NO COMMERCIAL OR EDITORIAL SALES IN CHINA.
China's first domestically built aircraft carrier is seen during its launching ceremony in Dalian, Liaoning province, China, April 26, 2017. REUTERS/Stringer ATTENTION EDITORS - THIS IMAGE WAS PROVIDED BY A THIRD PARTY. EDITORIAL USE ONLY. CHINA OUT. NO COMMERCIAL OR EDITORIAL SALES IN CHINA. TPX IMAGES OF THE DAY
China's first domestically built aircraft carrier is seen during its launching ceremony in Dalian, China April 26, 2017. REUTERS/Stringer ATTENTION EDITORS - THIS IMAGE WAS PROVIDED BY A THIRD PARTY. EDITORIAL USE ONLY. CHINA OUT. NO COMMERCIAL OR EDITORIAL SALES IN CHINA.
China's first domestically built aircraft carrier is seen during its launching ceremony in Dalian, Liaoning province, China, April 26, 2017. REUTERS/Stringer ATTENTION EDITORS - THIS IMAGE WAS PROVIDED BY A THIRD PARTY. EDITORIAL USE ONLY. CHINA OUT. NO COMMERCIAL OR EDITORIAL SALES IN CHINA. TPX IMAGES OF THE DAY
Chinese People's Liberation Army (PLA) navy soldiers stand on a decommissioned destroyer in an aircraft carrier theme park during a celebration event on China's Navy Day at Binhai New Area, Tianjin, China, April 23, 2017. Picture taken April 23, 2017. REUTERS/Stringer ATTENTION EDITORS - THIS IMAGE WAS PROVIDED BY A THIRD PARTY. EDITORIAL USE ONLY. CHINA OUT. NO COMMERCIAL OR EDITORIAL SALES IN CHINA.
China's second aircraft carrier, first domestically built aircraft carrier, is seen during its launching ceremony in Dalian, Liaoning province, China, April 26, 2017. REUTERS/Li Gang/Xinhua ATTENTION EDITORS - THIS PICTURE WAS PROVIDED BY A THIRD PARTY. THIS PICTURE IS DISTRIBUTED EXACTLY AS RECEIVED BY REUTERS, AS A SERVICE TO CLIENTS. EDITORIAL USE ONLY. NO RESALES. NO ARCHIVE. CHINA OUT. NO COMMERCIAL OR EDITORIAL SALES IN CHINA. TPX IMAGES OF THE DAY
DALIAN, CHINA - APRIL 26: China launches its first domestically developed aircraft carrier at Dalian Port during a launch ceremony on April 26, 2017 in Dalian, Liaoning Province of China. General Fan Changlong, vice chairman of the Central Military Commission took part in the launch ceremony on Wednesday morning. (Photo by VCG/VCG via Getty Images)
DALIAN, CHINA - APRIL 26: A launching ceremony is held for China's first domestically developed aircraft carrier at Dalian Port on April 26, 2017 in Dalian, Liaoning Province of China. China launches its second aircraft carrier which is its first homemade aircraft carrier carrying J-15 fighter jets and other aircraft on Wednesday in Dalian. (Photo by VCG/VCG via Getty Images)
DALIAN, CHINA - APRIL 26: China launches its first domestically developed aircraft carrier at Dalian Port during a launch ceremony on April 26, 2017 in Dalian, Liaoning Province of China. General Fan Changlong, vice chairman of the Central Military Commission took part in the launch ceremony on Wednesday morning. (Photo by VCG/VCG via Getty Images)
DALIAN, CHINA - APRIL 26: A launching ceremony is held for China's first domestically developed aircraft carrier at Dalian Port on April 26, 2017 in Dalian, Liaoning Province of China. China launches its second aircraft carrier which is its first homemade aircraft carrier carrying J-15 fighter jets and other aircraft on Wednesday in Dalian. (Photo by VCG/VCG via Getty Images)
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Professor Dong Wen Cai, the late Chinese hydrodynamics expert, shows a sketch of a submersible major combatant, with a flat hull and mid-hull steering fins.

Stories circulating on Chinese websites—including the Wuhan city government site—mention that Chinese institutions are conducting studies on gigantic submersible arsenal ships.

What's the big deal about an underwater arsenal vessel? Well submerging all or even most of a large warship would reduce its radar and visual signature, as well as protect it against most missile threats.

China Waveskimmer Arsenal Ship

CAD Waveskimmer

This computer-generated line drawing of the Chinese waveskimmer shows hull-mounted fins that allow for maneuverability and underwater (and semi-submerged) operation. It appears to also be capable of hydroplaning.

NSFC

There are two concepts in circulation: one is a high-speed warship with much of its hull submerged but otherwise has a functional superstructure with defense weapons and radar, the other is almost completely submerged arsenal ship with two conning towers. The scale of the designs are significant; either ship would displace roughly about 20,000 tons at full load.

China Submersible Warship Arsenal Ship


Submersible Cruiser

The submersible warship has four stages: submerged, partial exposure of the superstructure, raising the hull to the 'waterline' and as a low draft, and operating as a high-speed hydroplane.

NSFC

Reports claim there has been substantial design work and concept proofing for this underwater arsenal ship. Even on his deathbed, leading naval engineer Professor Dong Wei Cai continued to work on a key aspect of the arsenal ship design: the high-speed wave hydroplane.

For stealth operations, the arsenal ship would have most of its hull inherently submerged, with only the bridge and a few other parts of the ship above the waterline, reducing the radar cross section. But when traveling with a high-speed naval taskforce, the arsenal ship will sacrifice stealth to use its flat hull bottom to hydroplane at high speeds, cutting across the waves like a speedboat or amphibious armored vehicle.

China arsenal submarine ship

Carrier Group

An arsenal ship can rely on the carrier's airwing and surface warship escorts to protect it against airborne threats, while providing the carrier group hundreds of extra missile launchers holding anything from air-defense rockets to land-attack cruise missiles.

baoxiuyuan

The second design is more conventional, it is essentially a giant, conventionally propelled submarine with two conning towers stuffed with snorkels, periscopes, and communications antennae. Given its need to keep up with high-speed surface ships and its lack of high-speed endurance underwater, this arsenal ship design would operate similarly to WWII submarines; the majority of its voyage will take place on the surface, and will submerge only during combat and under attack.

China Submersible Demonstrator

Demonstrator

While a 4-meter-long, 1-ton scale model of the high-speed submersible has been undergoing tests and is even shown on state television, no complete picture of the demonstrator has been shown, with only partial photos being released to the public.

CCTV 7

Chinese research institutes have been testing sub-models of both arsenal ship configurations since 2011, including open-water tests for the hydroplane arsenal ship and laboratory tests for the arsenal submarine. Unverified rumors on the Chinese internet claim that a full-scale, proof-of-concept is under construction at Bohai Shipbuilding Heavy Industrial Corporation, to be launched after 2020.

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