Spyplancs, small enough to fit into a palm, may take off within three years. Microflyers, as they are called, will have a wingspan of about 15 cin and would weigh less than 100 gin. The planes are being developed by researchers at the Georgia Institute of Technology, Atlanta, US, who feel that the aerodynamics for this plane will be totally different. Carrying tiny video cameras, the planes will be used by the US Fire Department to check for survivors in fire mishaps and at earthquake sites where human search is dangerous. The researchers also intend to send these planes to nuclear accident sites, to transmit video and infrared pictures.