The idea is that when a struggling swimmer is spotted by shore-based rescuers, they'll just fire up the drone, fly it out to the person and land it on the water, where the swimmer will use it as a floatation device. A slower-traveling human rescuer will then proceed out on a watercraft, to bring the individual back to shore. The composite-bodied TY-3R is claimed to weigh less than 5 kg Didiok Makings The TY-3R takes off with the push of a button on an included joystick remote, and provides the pilot with a real-time view from a tilt-able onboard 720p camera on its way out.