The DDGH(A) and the Perils of Designing Warships from a Map Table

By Ted Barnes, 10 June 2026

The latest issue of CNR presents retired Major Les Mader's proposal for a DDGH(A), an Arctic destroyer intended to combine the combat power of the future River-class destroyers with the ice capabilities required for sustained Arctic operations. On the surface, it is an appealing concept. Canada faces growing strategic competition in the North, longer navigation seasons, and increasing demands to demonstrate sovereignty. However, the article ultimately reads less like a naval capability study and more like a land warfare solution applied to a maritime problem. While military experience should always be valued, there is a significant difference between understanding strategy and understanding the realities of designing, building and operating warships.

The central weakness of the proposal is that it attempts to solve every perceived naval challenge with a single platform. The DDGH(A) would carry destroyer level combat systems, substantial missile inventories, helicopters, unmanned systems, anti-submarine warfare capabilities, Arctic endurance and meaningful icebreaking capability, all while maintaining the performance expected of a modern combatant. To a sailor, the immediate question is simple...what gets sacrificed? Every additional capability adds weight, complexity, cost, maintenance requirements and design compromises. Naval architecture is a constant exercise in balancing competing demands. The article largely assumes these trade offs can be overcome without significant consequences.

Perhaps the most revealing aspect of the article is its treatment of ice capability. Ice strengthening is presented almost as an additional feature that can be added to a destroyer design. Anyone who has spent time at sea understands that ice capability affects virtually every aspect of a ship. Hull form, displacement, fuel consumption, speed, endurance, stability, maintenance requirements and cost are all affected. There is a reason why the RCN built the Harry DeWolf-class for Arctic patrols and the River-class for high intensity naval combat. Those requirements were deliberately separated because combining them into a single platform creates exactly the sort of compromises the DDGH(A) attempts to ignore.

The article also approaches naval operations as though warships must function independently, capable of addressing every threat they may encounter in isolation. That is not how modern navies fight. Naval warfare is built around task groups, layered defence, shared sensors, aviation support, logistics networks, satellites, submarines and allied integration. No warship is expected to independently conduct sovereignty patrols, anti-submarine warfare, area air defence, long range strike and Arctic sustainment simultaneously. That may make sense when viewed from a land warfare perspective, but fleets are designed around complementary capabilities, not a jack-of-all-trades platform.

Even more surprising is the complete absence of any discussion of the Continental Defence Corvette program. While proposing a new Arctic destroyer, the author never acknowledges that the RCN is already pursuing a combatant that appears intended to fill many of the same operational gaps. Current concepts point toward an ice class warship with modern sensors, long endurance, unmanned systems capability and combat power at least comparable to the Halifax-class. Some proposed designs feature 24 vertical launch cells, exceeding the Halifax-class16 cell launcher. If the CDC delivers even a portion of its anticipated capability, much of the operational space envisioned for the DDGH(A) may already be addressed without creating another class of warship.

The proposal also bears a striking resemblance to the recurring PMSV concepts proposed in this forum for the last few years. Like those proposals, the DDGH(A) attempts to solve multiple strategic challenges with a single vessel. Arctic sovereignty, ASW, fleet air defence, long-range strike, unmanned systems operations, presence patrols and expeditionary support are all combined into one ambitious platform. Such concepts always appear attractive on paper. Yet history repeatedly shows that ships designed to do everything often become extraordinarily expensive, technically challenging and operationally compromised. The DDGH(A) risks becoming another example of a concept that appears elegant in theory but encounters enormous obstacles long before steel is ever cut.

If this proposal is simply a thought exercise unconstrained by budgets, industrial realities, crew requirements, or procurement timelines, then looking at the problem through a naval lens leads to a very different conclusion. Rather than attempting to create a hybrid Arctic destroyer, I would simply build several additional Polar Class heavy icebreakers, properly militarize them with modern air defence, anti-submarine and surface warfare systems, and use them as true Arctic combat support platforms. In many respects, this mirrors concepts examined during the Harper era before costs ultimately killed the idea and the RCN ended up having AOPVs instead. Even then, we must be honest about where Arctic warfare is heading. The decisive platforms in any future Arctic conflict are unlikely to be surface combatants. The vast distances, harsh environment, limited infrastructure and expanding sensor networks favour aircraft, uncrewed systems and submarines above all else. Surface ships will remain important for presence, sovereignty, logistics, and command and control, but if a shooting war ever comes to the Arctic, it will largely be fought beneath the ice and above it, not on it.

None of this is to suggest the article lacks value. The Arctic is becoming increasingly important. Canada must think seriously about future naval requirements in the North. However, the proposal ultimately highlights the difference between looking at a map and taking a ship to sea. Sailors, being practical creatures, immediately begin asking questions about weight margins, fuel consumption, hull design, logistics support, maintenance requirements, crew demands and cost. The article rarely addresses those realities because it starts from the assumption that all desired capabilities can be concentrated into a single platform. The sea is unforgiving, and naval architecture is even less forgiving. The DDGH(A) is an interesting thought experiment, but it feels far more like a concept developed from a map table than from a bridge wing, and that may be its greatest weakness.

Image: The latest rendering of the River-class destroyer, posted by ADM (MAT) on LinkedIn in April 2026 following progress on the ship's design review. Credit: Assistant Deputy Minister (Materiel)

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