Skyfox Simulator: Realistic training

The Aero L-39 Skyfox simulator underwent testing in two phases. The first was objective testing, in which the device uses a fully automated testing system. This system verifies key parameters without human intervention – for example, the conformity of the mathematical model, the forces in the controls, the system's response to control inputs, and the contrast of light points simulating airport lighting systems. Automation ensures that test results are presented as accurate data and graphs, and any deviations can be easily determined based on the measured values.

In the second phase, called subjective testing and functional testing, the human factor also enters the process. This part is performed by a group of pilots with practical experience with the Skyfox aircraft. The test flights on the simulator are almost identical to the real ones. The aim of this phase is to verify the behavior of the simulator in various situations, from switching on, starting the engine, preparing the avionics, and taxiing, through takeoff, performing aerobatic maneuvers and navigation procedures, to landing, taxiing to the stand, and switching off the engine. To avoid evaluation based on purely subjective impressions, functional tests are always performed by at least three pilots.

"The simulator is certified according to the relevant regulations of the European Aviation Safety Agency (EASA). For this category, this means that the simulator cabin is an exact replica of a real aircraft and the mathematical model of movement meets strict criteria. The behavior of the simulator in individual flight modes and during ground movement corresponds to reality with a tolerance of a few percent, which is subjectively indistinguishable for pilots," describes Mr. Vít Ryška. In addition, the simulator offers visual simulation of the surrounding environment, which includes various weather conditions from different types of cloud cover to rain and snowfall, at any time of day or night.

The Ministry of Defense's certification means that the development phase of the FTD Level 2 simulator for the Aero L-39 Skyfox, for which VR Group was responsible, has been successfully completed. Serial production of the simulators is expected to begin in the near future.