To test a flight control computer in the laboratory, the real flight conditions must be simulated. In this example a SCALEXIO system is used for a real-time preflight simulation of the entire mission for a high-altitude research rocket. The objective is to verify the correct behavior of the navigation computer in the lab. In the first step, the HIL simulator is connected only to the navigation computer since the navigation devices are not available yet. Therefore, they are simulated on the HIL simulator, which provides the sensor data for the navigation computer. Later, real navigation devices replace their virtual counterparts. In this case, the SCALEXIO system continues to simulate the environment, thus enabling the navigation devices to provide the relevant sensor data to the navigation computer.
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