Internal combustion engine propulsion, with MTOW range from 25 up to 150 kg. Signus 150D is a technological demonstrator, as well as a testing & equipment integration platform. In the next future Signus150 will be a tactic UAV with more than 48 hours autonomy. We also have under development a small tactic class prototype Signus35 with a MTOW around 35 Kg and the autonomy over 24 hours.