Saab is putting forward its Beingke-class A26, a battle submarine described as the first in the world to have a fifth-generation design.
The A26 can dive down to seabeds and deploy unmanned underwater vehicles (UUVs), swimmer delivery craft, and a suite of undersea weapons and intelligence, surveillance, and reconnaissance (ISR) tools.
With “extremely low” acoustic signatures, it can reportedly slip through sonar-choked waters like the Baltic Sea, serving as a stealthy surveillance node that can remain virtually invisible to enemy detection.

Saab also said the sub can stay at sea for extended periods, holding maritime chokepoints and listening in on adversary signals.
“The 5th-generation A26 submarine’s cutting-edge signature management and Saab’s heritage of Baltic Sea stealth make this among the world’s hardest-to-detect submarines,” the company stated in its latest public release on the program.
Multi-Domain Solution
Armed with long-range precision torpedoes and missiles, the A26 can serve as an offensive option for underwater, surface, and land targets.
Its soft-kill capabilities include “underwater information warfare,” using electronic systems to disrupt enemy communications and sensor networks.

This versatility aligns with NATO’s Multi-Domain Operation requirements, where next-gen platforms need to sense, strike, and communicate across domains.
Docked Until Further Notice
What was once a 2028 delivery has slipped to 2033 as budget strain reshapes the A26 timeline.
Sweden tried to bring in international partners to share the 8.4 billion krona ($882 million) cost, but ended up shouldering the program alone.
Additional production adjustments added another 8.9 billion krona ($934.5 million) to the overall price tag, further stalling the submarine’s entry into service.