Canadian Navy Reveals Latest Modifications to River-Class Destroyer

Key Takeaways

• Mk45 gun replaces Leonardo 127mm for commonality
• Missile silos reduced to 24 Mk41 cells, space for expansion
• RAM launcher moved to port side aft for clear arcs
• 30mm MSI‑DS Mk 38 replaces Leonardo Lionfish
• First steel cut April 2025; delivery early 2030s

Summary

The Royal Canadian Navy unveiled an updated River‑class Destroyer model, aligning the design more closely with NATO standards. The Italian‑made 127 mm gun has been swapped for the lighter BAE Mk 45, and the missile layout now features 24 Mk 41 cells with room for expansion. Additional changes include a port‑side RAM launcher, starboard‑mounted Naval Strike Missiles, and a British‑sourced MSI‑DS Mk 38 30 mm cannon. First steel was cut in April 2025, with delivery of the lead ship expected in the early 2030s.

Pulse Analysis

The Canadian Surface Combatant (CSC) programme, now embodied in the River‑class Destroyer, builds on the Royal Navy’s Type 26 frigate and Australia’s Hunter class. By leveraging an existing hull and propulsion architecture, Canada hopes to trim development risk while still fielding a modern anti‑submarine platform. The latest scale model unveiled in Ottawa confirms that the design is converging on a configuration that maximises parts commonality with NATO partners, notably through the adoption of the BAE Systems Mk 45 5‑inch gun. This alignment promises lower acquisition costs and streamlined logistics across allied fleets.

Key equipment swaps signal a shift toward simplicity and interoperability. The Italian‑made 127 mm gun was dropped in favour of the lighter Mk 45, reducing top‑weight and easing integration with the Type 26’s automated ammunition handling system already proven on HMS Glasgow. Missile capacity has been trimmed to three eight‑cell Mk 41 vertical launch modules, totaling 24 cells, but the deck retains space for an additional module, preserving growth potential. The single port‑side RAM launcher and starboard‑mounted Naval Strike Missile pods improve weapon arcs, while the British‑sourced MSI‑DS Mk 38 Mod 4 30 mm cannon replaces the Leonardo Lionfish, aligning with U.S. Navy standards.

Construction of the lead ship, HM Fraser, began with steel cutting in April 2025 at Irving Shipbuilding, marking Canada’s entry into full‑rate production. With a target delivery in the early 2030s and a fleet of up to 15 vessels slated for service through 2050, the CSC represents the largest naval procurement in Canadian history. Yet the programme faces scrutiny over the domestic shipbuilding sector’s limited capacity and a defence budget that is already stretched thin. By standardising systems with NATO allies, Canada hopes to mitigate cost overruns and ensure the River‑class remains a credible anti‑submarine asset for the next three decades.