Robinson Marks 5,000th R44 Raven II Delivery As Robinson Helicopters steps up development of autonomous and hybrid-powered versions of its light piston single R44, the California-based company has marked the delivery of the 5,000th R44 Raven II. andy.savoie@av… Tue, 08/11/2026 - 17:58 Author Guy Norris Content source Business Aviation & AAM Report Aerospace Daily &