High Efficiency Turbo-Generator System

Current turboshaft-generator (turbo-gen) systems used as an alternative to direct-drive fuel-powered propulsion or battery-electric propulsion systems typically produce 1kW per kilogram of system weight. Elroy Air proposes the development / demonstration of a turbo-gen system that produces 1.5kW/kg, enabling a 33% system weight reduction while producing the same power requirement for its Chaparral VTOL UAS.ááThe weight savings will increase the Chaparralĺs payload-carrying potential by a 1:1 ratio of turbo-gen weight reduction to increased payload lift capability, will increase endurance up to 4 hours, and enable distance to nearly 500 miles while carrying a 300-pound cargo load.