RC miniscales is a category not recognized by FAI nor any other organization we would know about. Therefore it is only subjective what to include into this category. At the moment we include scale models of wingspan of several centimeters and weight of several dozens of grams upto machines with wingspan of about 120 cm (in case of multiengine airplanes) weighing about 700 grams.
So far the RC miniscales only contain a few planes by Felda in Models section....