Enabling AI at the tactical edge: Rugged computing and thermal management across domains

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August 11, 2026

New, more sophisticated technologies and artificial intelligence (AI)-driven applications are being deployed in rugged computing at the tactical edge of the battlefield. U.S. armed forces in land, sea, and air domains, are using these technologies for mission-critical applications such as intelligence, surveillance, and reconnaissance (ISR); 3D terrain rendering; and loitering munitions and unmanned command.

Such modern, high-performance edge computing systems help make the warrior on the battle’s edge more effective, more efficient, and safer. Higher powered and more productive field computing devices do, however, produce an invisible but critical threat to mission continuity – thermal management, which is an under-discussed engineering challenge in defense computing.

AI autonomous systems, sensor fusion, and advanced battlefield networking are rapidly changing how military forces operate. Military personnel across all branches increasingly rely on rugged mobile computing platforms to process information closer to the heat of combat. These systems are no longer simple data-entry devices; they have evolved into intelligent tactical edge computing platforms capable of supporting mission-critical applications in disconnected, degraded, and contested environments.

As computing performance and functionality increase, thermal challenges have also increased across all combat domains. Thermal extremes can negatively impact system operation so managing them has become a critical design consideration.

Cooling architectures vary by how they function in specific environments – land, air, or sea.

Land warfare – rugged computing needed

Tactical battle-management systems, EW support, counter-UxS operations, predictive maintenance, logistics planning, cyberdefense, and augmented reality applications are increasingly being deployed via rugged mobile-computing devices at the tactical edge of ground military operations.

Modern ground-combat operations generate enormous volumes of information from drones, sensors, tactical radios, battlefield-management systems, and intelligence sources, all of which must be handled using a mobile rugged computing device. With the goal of shortening decision cycles while reducing cognitive workload, AI-enabled applications on rugged computers help U.S. armed forces commanders and operators process information more efficiently through target identification, route optimization, sensor fusion, predictive threat analysis, and decision support tools.

These applications often require substantial amounts of local computing power because reliable connectivity to centralized resources cannot always be guaranteed. Moreover – even as AI brings huge increases in efficiency and capability – advanced visualization, and real-time analytics place greater demands on processors, memory, graphics subsystems, and storage. As computing density increases, power consumption and heat generation increase as well, creating new thermal- and power-management challenges. (Figure 1.)

[Figure 1 ǀ AI-enabled applications on rugged mobile computers help operators handle massive amounts of data; users must deal with thermal- and power-management challenges, especially in hot or hostile environments. Image courtesy Durabook.]

Excessive heat can impair computing per­formance via thermal throttling, shorten battery runtime, and affect system reliability. In mission-critical scenarios, reduced performance can mean unacceptable delays in intelligence analysis, mission planning, or command-and-control activities. Environmental conditions, including direct sunlight and high ambient temperatures, also contribute to systems overheating.

For all these reasons, thermal management is a central concern in the selection and quality operation of rugged mobile computers and the applications they support. Rugged-computing platforms typically employ passive, active, or hybrid cooling architectures: Passive cooling relies on conductive heat transfer, while active cooling uses fans or blowers; hybrid approaches combine both methods.

Lightweight chassis materials such as magnesium alloy, which also possesses a high strength-to-weight ratio, often serve as structural and cooling elements in rugged computers. In effective passive thermal management, heat pipes, vapor chambers, thermal interface materials, sealed enclosures, and ruggedized connectors can all impact heat transfer while also maintaining environmental protection. Passive, or fanless, cooling operates quietly, a factor that can be a lifesaver in a front-line situation.

In an active-cooling setup, while the fans are running, they suck dust, dirt, moisture, potentially combustible vapors, and other contaminants into the computer. Moisture corrodes electrical components, and debris builds up, over time limiting the movement of mechanical parts, which can cause the fan to malfunction.

When considering the necessary characteristics of rugged computing devices for use in ground platforms at the tactical edge, it is crucial to add thermal-management considerations to the evaluation criteria and to consider a device’s IP66 rating, which indicates how effectively it protects against dust and water ingress.

Sea warfare – power, cooling challenges

Naval forces must process data from radar, sonar, electronic warfare (EW) systems, autonomous vessels, and distributed sensor networks. Applications that handle this information include AI-assisted radar processing, EW analysis, missile-defense support, autonomous vessel control, distributed maritime operations, and maritime ISR exploitation. In these cases, AI assists with target classification, anomaly detection, threat prioritization, and maritime domain awareness.

As in ground tactical operations, the processing power required to execute these and other cutting-edge applications used at sea is sizable and rising. Not only do the machines generate their own heat, but shipboard working spaces are often confined and can reach elevated temperatures. In the maritime environment, salt fog, humidity, corrosion, vibration, and prolonged deployment cycles create negative environmental stresses for computing systems, with continuous vibration and shock placing additional demands on thermal and mechanical designs.

When used at sea, fanless architecture that does not employ air intake and movement to cool a system also avoids ingress of moisture and salt. The corrosive elements endemic to seagoing environments can, however, affect all kinds of cooling systems’ connectors, as well as batteries and internal electronics.

In a seagoing environment, device selection must consider the unique requirements of naval platforms and opt for corrosion-resistant materials, specialized coatings, moisture-resistant thermal interfaces, sealed connectors, and designs capable of surviving prolonged vibration and exposure to salt-laden air.

Air warfare – SWaP is key

Jets operating at Mach 1 to 2+ require rapid interpretation of sensor data from onboard rugged computers that enable accelerated decision-making. AI solutions supports sensor fusion, mission planning, threat analysis, electronic warfare, and autonomous collaborative operations.

In this environment, applications gaining in importance include aircraft health monitoring, AI-assisted mission planning, tactical data-link management, ISR exploitation, and autonomous wingman support.

Not surprisingly, air platform deployments face strict size, weight, and power (SWaP) requirements while simultaneously demanding higher computing performance and cybersecurity resilience. A computing system designed for aircraft must withstand extreme temperatures, from intense heat on the tarmac to very cold conditions at altitude. Thermal stress can reduce system performance, impact battery endurance, and affect reliability during critical mission phases.

Additional considerations in aviation include reduced air density at altitude, vibra­tion, pressure changes, electromagnetic compatibility requirements, and weight constraints, all of which influence cooling architecture and overall thermal design.

Going forward

Thermal management must always be part of the conversation surrounding military and combat-ready platform selection. The ability to balance performance, mobility, environmental durability, and thermal management will remain essential to ensuring mission success across land, sea, and air domains.

Joe Guest is president of Durabook. He brings more than three decades of experience gained through service in the U.S. Air Force, the National Guard, and leadership roles in government-focused technology positions. Joe held business development and executive leadership positions at other rugged mobile computing and notable tech industry companies. Readers may reach Joe at [email protected].

Durabook • www.durabook.com/us/