Abstract: An aero-contouring apparatus is provided. The aero-contouring apparatus has a housing assembly and a motor assembly disposed therein. The motor assembly has a motor unit and a drive unit. The aero-contouring apparatus further has an engagement force/tilt limiting member coupled to the housing assembly, which has a central opening and a bottom end configured to contact a surface to be aero-contoured of an aerodynamically functional coating applied to a structure. The aero-contouring apparatus further has an abrading unit coupled to the drive unit and inserted through the central opening in non-contact communication with the engagement force/tilt limiting member. The abrading unit is driven by the drive unit in a random orbit motion on the surface. The engagement force/tilt limiting member mechanically limits both an engagement force and any tilting motion of the abrading unit with respect to the surface.

Abstract: An aero-contouring apparatus is provided. The aero-contouring apparatus has a housing assembly and a motor assembly disposed therein. The motor assembly has a motor unit and a drive unit. The aero-contouring apparatus further has an engagement force/tilt limiting member coupled to the housing assembly, which has a central opening and a bottom end configured to contact a surface to be aero-contoured of an aerodynamically functional coating applied to a structure. The aero-contouring apparatus further has an abrading unit coupled to the drive unit and inserted through the central opening in non-contact communication with the engagement force/tilt limiting member. The abrading unit is driven by the drive unit in a random orbit motion on the surface. The engagement force/tilt limiting member mechanically limits both an engagement force and any tilting motion of the abrading unit with respect to the surface.