Ranger : Disaster Delivery Drone.

Ranger is an auto-mobile drone for disaster fighting supply and equipment transportation. Now, firefighters can only set up frontline base average 1.5 miles away from the final destination, because truck can't just go in anywhere. So, they have to carry 23kgs average of supply and equipment and walk through this gap. This round by round routine will last from 3 days to 1.5 weeks. Is there a tool for them to skip this routine and focus only on disaster fighting? Yes, here comes Ranger.