Open Architecture Is Changing Military Simulation

Simtek APX-119

Today’s trainer must be ready for tomorrow’s architecture.

Military simulation is changing rapidly. The focus is no longer simply on building a highly realistic standalone simulator. The next generation of training systems must be capable of connecting, adapting, expanding, and integrating new technologies as requirements evolve.

The U.S. Army’s Synthetic Training Environment (STE) is a clear example of that shift.

The Army’s vision calls for common synthetic environments that bring together live, virtual, constructive, and gaming capabilities. Open architectures, common standards, shared data, and standardized interfaces are central to making those systems interoperable instead of locking training capabilities into isolated platforms.

More recently, the Army’s 2026 training strategy has continued that direction. Current STE documentation describes reusable software and data, common terrain, simulation models, AI-driven behaviors, and standardized interfaces for interoperability as foundational elements of the training ecosystem.

Why Open Architecture Matters

Traditional training devices were often developed as complete systems with tightly coupled hardware, software, interfaces, and visual systems. That approach can produce an excellent simulator—but it can also make modernization difficult.

A new display, communication protocol, simulation engine, visual system, or training requirement may force significant redesign.

Open architecture changes that philosophy.

Instead of designing every component around one fixed configuration, systems can be structured so individual technologies can be updated, replaced, or expanded without rebuilding the entire trainer.

For the military, that means the ability to introduce new capabilities faster. For simulator manufacturers and integrators, it means designing equipment that can survive multiple generations of technology.

Physical Fidelity Still Matters

Open architecture does not eliminate the need for realistic cockpit hardware.

In many ways, it makes that hardware even more important.

A pilot still reaches for a physical switch. A crew member still develops muscle memory around the location of a control. A display still needs to occupy the correct position. Knob rotation, switch travel, detents, lighting, panel geometry, and tactile feedback all contribute to the training experience.

The difference is that the electronics and interfaces behind those controls must increasingly be capable of integrating with changing simulation architectures.

The physical cockpit may remain familiar while everything behind it evolves.

That is an important distinction.

Simulated Avionics Must Be Built for Integration

At Simtek, we believe simulated avionics should not be designed only for the trainer being delivered today.

They should also consider the trainer that system may become tomorrow.

A simulated control panel, instrument, display, or cockpit assembly may remain physically relevant for many years while processors, host computers, simulation software, communication protocols, and visual technologies continue to change.

Designing for integration gives simulator manufacturers greater flexibility to modernize systems without unnecessarily replacing proven cockpit hardware.

That becomes increasingly important as training environments move toward interconnected systems capable of combining multiple aircraft, vehicles, operators, instructors, AI-generated entities, and geographically separated participants into a common exercise.

The Army is already pushing toward this type of connected environment. Its emerging “Army Training Verse” concept is intended to connect simulation engines, engineering artifacts, and data services while reducing fragmentation and improving interoperability across the training enterprise.

Fidelity and Flexibility Can Coexist

There does not have to be a choice between high fidelity and open architecture.

The strongest simulation systems can provide both.

The operator should experience a cockpit that looks, feels, and responds appropriately.

Behind that cockpit, however, the architecture should allow technology to evolve.

That means thinking beyond the faceplate.

It means considering electrical interfaces, communications, software integration, maintainability, component obsolescence, upgrade paths, and how a device will interact with the larger training ecosystem throughout its service life.

For organizations investing in training technology today, those considerations can be just as important as the initial specification.

Building for the Trainer of Tomorrow

Military training requirements will continue to evolve.

Artificial intelligence, mixed reality, distributed training, cloud-based simulation, advanced synthetic environments, and live-virtual-constructive integration will continue changing what is possible.

The hardware inside the cockpit must be ready to move with it.

At Simtek, Inc., our focus remains on producing high-fidelity simulated avionics and cockpit hardware that delivers the physical realism operators expect while supporting the integration flexibility modern training systems demand.

Because the goal is no longer simply to build hardware for today's simulator.

It is to build hardware capable of becoming part of tomorrow's training architecture.

Simtek — Realistic Where It Matters. Ready for What’s Next.

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