*2.1. Mission Requirements*

Mission systems and subsystems are grouped into the ground segment and the flight segment:


The final mission is defined by the following phases (Figure 2):


**Figure 2.** Mission phases definition.

The mission is performed in the visual line of sight. However, telemetry information needs to be available to both the GCS crew and the pilot. Given the intrinsic dynamic instability of the helicopter, fuselage attitude stabilization algorithms are required to assist the pilot throughout the mission profile. Conversely, no closed-loop control is applied to the MR collective pitch. The use of an independent Flight Termination System (FTS) is mandatory to stop the engine in case of emergency.
