OSK Design Pitches 95-Meter Coastal Corvette to Denmark

OSK Design has presented a new 95-meter Coastal Corvette concept to the Royal Danish Navy. The design, unveiled at the DALO Industry Days 2026 event, aims to address a perceived capability gap within the Danish fleet.

Lars Povl Jensen, Head of Defense at OSK Design, told Naval News the concept sits between traditional frigates and unmanned vessels. The design is heavily inspired by an earlier patrol ship developed for the Lithuanian Navy, but the hull was lengthened and the beam narrowed to improve speed and agility.

Key Specifications

The vessel's core dimensions and propulsion system are detailed below.

The platform incorporates a battery pack for low-noise operations and energy storage. Its primary operational areas are envisioned as the Baltic Sea, North Sea, and Mediterranean, though it retains flexibility for North Atlantic transit.

Heavy Armament and Sensors

Despite its corvette size, OSK Design has equipped the concept with a heavy armament suite. Jensen emphasized this provides more self-defense and firepower than typical for a ship of this class, a choice meant to counter drone and asymmetric threats.

The proposed armaments include a main gun of up to 76mm, a secondary defense Close-In Weapon System (CIWS) of up to 35mm, and between two to four remote weapon stations. The vessel could carry eight to sixteen anti-ship missile launchers and up to sixteen Vertical Launch System (VLS) cells. It also features dedicated torpedo tubes for anti-submarine warfare.

A strong sensor suite supports this firepower. It includes a 3D air surveillance radar with a range exceeding 120 nautical miles, an integrated fire-control radar, and electronic support and countermeasure systems. Electro-optical/infrared sensors and a hull-mounted sonar are standard, with an optional variable-depth sonar.

Modular Mission Bay and Crew

Flexibility is a core feature. The aft section contains a configurable mission bay with space for up to six ISO 20-foot container positions. This area is engineered for rapid reconfiguration to support unmanned surface, underwater, and aerial vehicles. The vessel can also lay sea mines from this bay.

An aviation deck can handle a medium-sized helicopter of up to 10 tonnes, complete with a hangar, a UAV control center, and on-deck refueling capabilities.

Operating these systems requires a lean crew. The corvette is designed for a permanent crew of 45, with accommodations for an additional 25 mission specialists, bringing total capacity to 70 personnel.

The concept is part of a broader family of ice-class vessels from OSK Design that share architectural similarities. Naval News understands the Danish Ministry of Defense is keen on a corvette concept to fill the fleet gap, and defense officials are expected to formally propose the initiative to the government.