Evaluations on hydrogen fuel cells as a source of energy for specific operations category civil RPAS systems

This paper is on the evaluation of hydrogen fuel cells as a mean to enhance RPAS systems performances in terms of reachable range and endurance to integrate them into controlled airspaces operatively and safely. Main steps to size a fuel cell system to feed electrical motors of a fixed wing RPAS capable of specific operations category are described in this article. Then, a more extensive parametric model of a fuel cell power line based on operative and safety requirements for medium range/medium endurance RPAS systems is presented and discussed.