DEFINITION OF RADIO CONTROLLED GLIDER
An model aircraft which is not provided with a propulsion device and
in which lift is generated by aerodynamic forces acting on the surfaces
remaining fixed. Model aircraft with variable geometry or area must
comply with the specification when the surfaces are in maximum and minimum
extended mode. The model aircraft must be controlled by the pilot on
the ground using a radio control. Any variation of geometry or area
must be actuated at distance by radio.