Israel Quietly Receives INS Drakon, a Larger and More Mysterious Submarine Built in Germany- Israel has quietly taken delivery of the INS Drakon, the sixth and final submarine in its Dolphin II fleet, marking the end of a project that has taken more than a decade to complete and raising fresh questions about the vessel’s true capabilities.
The submarine was reportedly handed over at ThyssenKrupp Marine Systems (TKMS)‘ shipyard in Kiel, Germany, during what several defense publications described as a low-profile ceremony. While Israeli and German authorities have not publicly confirmed the details of the transfer, naval observers reported that the submarine has already begun sea trials under the Israeli flag before its eventual voyage to its new home port.
The arrival of the INS Drakon is significant not only because it expands Israel’s undersea fleet, but also because its unusual design has fueled speculation that it may represent a major leap forward in the country’s naval capabilities.
A Project More Than a Decade in the Making
The INS Drakon has experienced one of the longest development timelines of any modern diesel-electric submarine.
Israel reportedly placed the order with Germany in 2011, with construction beginning the following year. Although work started in 2012, the submarine was not launched until 2024, and final delivery has only now taken place in 2026.
That means the project required roughly 14 years from the beginning of construction to operational delivery—an unusually lengthy schedule even by submarine-building standards.
Defense analysts believe much of this delay may have resulted from extensive redesigns, integration of new technologies, and the incorporation of systems that differ substantially from previous Dolphin II submarines.
Rather than simply producing another vessel identical to earlier boats in the class, engineers appear to have transformed the INS Drakon into a platform incorporating technologies that could influence Israel’s future submarine fleet.
Larger Than Any Previous Dolphin II
The most striking feature of the INS Drakon is its size.
Earlier Dolphin II submarines measure approximately 57 meters (187 feet) in length.
The Drakon, however, stretches to roughly 73 meters (240 feet), making it significantly larger than every previous submarine in the class.
The vessel also features a noticeably enlarged sail—the vertical structure rising above the hull—which immediately attracted attention when photographs first emerged during its launch.
This redesigned sail has become the center of widespread speculation among naval experts.
Neither Israel nor TKMS has explained why the structure is substantially larger than on earlier Dolphin II submarines.
Without official confirmation, defense observers have offered several theories.
Mystery Surrounding Possible Vertical Missile Launchers
Perhaps the biggest question concerns whether the INS Drakon carries vertical launch systems (VLS).
Several defense analysts have suggested the enlarged sail could conceal between two and eight vertical launch cells capable of firing long-range cruise missiles or potentially even ballistic missiles.
If true, such a capability would represent a significant enhancement over traditional torpedo-launched weapons.
However, these reports remain unconfirmed.
Neither the Israeli government nor TKMS has acknowledged the presence of vertical launch systems aboard the submarine.
As a result, much of the discussion surrounding the Drakon remains based on analysis of its external appearance rather than official technical disclosures.
The secrecy is consistent with Israel’s long-standing policy of revealing very little about its strategic submarine force.
Advanced Underwater Capabilities
Although many details remain classified, several technical characteristics have been reported by defense observers.
The INS Drakon is believed to carry:
- Six 533 mm torpedo tubes
- Four larger 650 mm torpedo tubes
- A submerged displacement estimated between 2,400 and 3,000 tons
- A crew of approximately 45 sailors
- A maximum submerged speed exceeding 25 knots
Like earlier Dolphin II submarines, the Drakon is expected to feature advanced air-independent propulsion technology, allowing it to remain submerged for extended periods without surfacing.
This greatly improves stealth and endurance during long-range patrols.
Bridge to Israel’s Next Generation of Submarines
Many analysts believe the INS Drakon represents more than simply the final Dolphin II submarine.
Instead, it may serve as a technological bridge toward Israel’s next submarine generation.
Germany is already constructing the Dakar-class submarines for Israel, with work beginning in 2024 at the same TKMS shipyard.
The Dakar class is expected to incorporate numerous design improvements beyond those found in the Dolphin II fleet.
Because the Drakon differs so dramatically from previous boats, defense experts suspect it may have functioned as a test platform for technologies ultimately intended for the upcoming Dakar-class submarines.
If that assessment proves accurate, lessons learned from operating the Drakon could directly influence Israel’s future undersea capabilities.
Russian Interest Raises Eyebrows
The submarine has also attracted attention well beyond Israel and Germany.
According to defense reports, Russia closely monitored the INS Drakon during its sea trials in 2024.
Observers claimed Moscow deployed two intelligence-gathering vessels to track the submarine’s activities.
That level of surveillance was notable because Russia reportedly assigned fewer reconnaissance assets to observe some major NATO naval exercises.
Although governments routinely monitor foreign military developments, the reported deployment suggested that Russian military planners viewed the Drakon as a platform worthy of close observation.
The apparent interest also reflects broader competition involving advanced submarine technologies and strategic deterrence in the Mediterranean region.
Regional Security Implications
Israel has never officially confirmed the full operational role of its submarine fleet.
However, defense analysts have long viewed the country’s submarines as one of its most strategically important military assets.
Their ability to operate quietly over long distances provides Israel with enhanced intelligence collection, special operations support, and maritime strike capabilities.
If the INS Drakon indeed possesses vertical missile launch systems, its potential strategic value would increase even further by expanding options for long-range precision strikes from beneath the sea.
Such capabilities would inevitably attract attention from regional rivals, particularly Iran, whose expanding missile and naval programs continue to shape Middle East security calculations.
At the same time, without official confirmation, many of the submarine’s most discussed features remain speculative.
Secrecy Continues to Define the Program
Perhaps the most remarkable aspect of the INS Drakon is how little is publicly known.
Unlike many naval acquisitions that include detailed technical briefings, Israel has maintained near-total silence regarding the submarine’s systems, weapons, sensors, and operational mission.
Even the reported delivery ceremony in Germany was conducted with minimal publicity.
That secrecy aligns with Israel’s broader defense doctrine, particularly concerning strategic capabilities that could influence regional deterrence.
For now, the INS Drakon remains one of the world’s most mysterious conventional submarines.
Its larger hull, redesigned sail, and extended development timeline suggest it is far more than a routine addition to Israel’s fleet. Whether it ultimately proves to possess entirely new strategic capabilities may not become clear for years—if it is ever officially disclosed.
