From the frozen north of Finland comes the news that FlyNano has flown its electric prototype. Originally planned to have both two-stroke and electric powerplants, the five-meter span joined-wing flying boat is now only electric, its makers citing the strides made in development of motors and batteries in the last several years for their decision. Designed to stay under 70 kilograms (154 pounds) empty weight, FlyNano has a maximum takeoff weight of 200 kilograms (440 pounds). Its small size and light weight make it possible to fly, based on the video, but with no specifications for motor, controller and battery. A company press release gives a “speed range of 70 – 140 kilometers per hour (43-87 mph) with a service …