 It is now possible to power most models weighing less than 20 lb with electric power for a cost equivalent to or lower than traditional power sources.This is the most rapidly developing segment of the hobby as of end of year 2010, along with the increasing popularity of FPV radio control aeromodeling, most often with electric-powered model aircraft, especially multirotor designs.Most powered model-aircraft, including electric, internal-combustion, and rubber-band powered models, generate thrust by spinning an airscrew.