In this episode we talk with Gerhard Wesp, Development Manager Avionics at Flarm Technology GmbH about FLARM, a collision avoidance system for gliders and general aviation. We talk about the history of the FLARM system as well as about newer developments such as the PowerFlarm. Mostly, however, we talk about how FLARM works and how PowerFlarm integrates with Transponders and ADS-B systems.