Designers are currently developing a Quadrocopter concept robot designed for emergency missions at sea.
A Savior Aerial robot will be equipped with three life preservers that could be dropped down to drowning victims, and will feature GPS and heat-sensing cameras to detect the presence of victims in the darkness.
Besides the robot will operate by charging its batteries at a solar-powered charging station on a nearby ship.
There are several advantages to quadrocopters over comparably-scaled helicopters. First, quadrotors do not require mechanical linkages to vary the rotor blade pitch angle as they spin. Second, the use of four rotors allows each individual rotor to have a smaller diameter than the equivalent helicopter rotor, allowing them to possess less kinetic energy during flight.
