China’s top secret giant 148ft submarine ‘drone’ spotted in satellite pics – and it could be the largest in the world

A GIANT Chinese submarine has been spotted in new satellite pictures – sparking concern over its secretive purpose.

The suspected drone sub, which could be the largest in the world, has been spotted at the Guangzhou Shipyard in southern China by satellites.

Satellite image of a large submarine.
Satellite imagery from January 9, 2025 appears to show the new Chinese submarineCredit: X/@MT_Anderson
Chinese Type 094A Jin-class nuclear submarine at sea.
China has historically managed to design and build submarines in secretCredit: AFP
Illustration of a new Chinese submarine, showing its features and comparing it to previous models.

According to Naval News, the vessel was in a floating dock in the shipyard where China has been rapidly building invasion barges.

Renowned naval expert HI Sutton said it measures around 148ft in length and 15ft in width.

The design of the new submarine has not previously been reported.

It appears to have no sail and large X-form rudders giving it a modern appearance.

The new submarine is smaller and is not believed to have a nuclear component, distinguishing it from other Chinese submarines such as the Type-041, which is powered by a nuclear battery and was constructed in a shipyard close to Wuhan.

It also differs from China’s ‘Olympic’ submarine that emerged in early 2022.

It is speculated that the new submarine is derived from a model of the world’s initial sailless submarine, which was introduced at the Jiangnan Shipyard in Shanghai back in 2019.

While that sub appeared to be experimental with no torpedo tubes or sonar, it is possible that the new sailless sub is a remake of the prototype.

In contrast to Western practices, China has a track record of clandestinely developing military technologies, keeping their capabilities and purposes veiled until the projects are fully developed and revealed.

Being smaller than usual diesel-electric submarines, this new boat is possibly more suited to shallow water operations.

Fears China covering up MORE nuclear disasters after newest submarine sank in port & was lied about by Communists

But, it is thought to have torpedo tubes and potentially a towed sonar array meaning it could attack ships or other submarines.

HI Sutton praised the subs “distinctive ultra-modern layout” and admitted it was a surprise to analysts to see the secret vessel.

Reports also suggest that it could be designed for missions carried out by special forces or for battles on the seabed.

According to Naval News, the submarine appears to be an uncrewed vessel which is increasingly common in China.

The country has the world’s largest program dedicated to constructing extra-large uncrewed submarines.

It already has at least five crewless vessels in the water but if the new submarine is a extra-large uncrewed underwater vehicle (XLUUV) then it is the largest in the world, Naval News reports.

If this is the case, it is around six to eight times larger that the US Navy’s Orca XLUUV.

But, if the submarine really is uncrewed, it is not clear why it would have to be so large.

HI Sutton says one explanation could see it be used to attack ships or submarines.

An alternative reason may be that it is designed for special forces missions or even seabed warfare. 

The revelation of the new secret submarine comes after a major blunder where one of China’s most sophisticated nuclear-powered submarines sunk.

Chinese authorities were left in a panic as they tried to cover up the setback to one of their priority weapons programs for months.

The sunken sub was first uncovered by US officials through satellites.

It comes as China continues to expand their navy fleet – especially the nuclear submarines, reports the Wall Street Journal.

The country claims to be building a world-class military in order to deter away aggression and safeguard its own overseas interests.

Satellite image of a sunken Chinese nuclear submarine being salvaged.
Satellite imagery from June 2024 of what appears to be floating cranes at a shipyard near Wuhan where the Chinese Zhou-class submarine sankCredit: Planet Labs
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