The primary objective of this thesis is the design and prototyping of cost-effective Flight Test Instrumentation (FTI) solutions to support helicopter certification campaigns. The research focuses on the development of two custom devices aimed at optimizing data collection and reducing the Flight Test Engineer’s workload. The first developed tool is a digital Event Marker based on a Raspberry Pi 4 architecture. Designed for the Flight Test Engineer (FTE), this touchscreen device implements sequential timestamp logic to log flight tasks and phases. It automates post-flight data organization by generating structured directories and compiling a ready-to-use Digital Flight Card, significantly minimizing manual errors.