Measuring system for determining the 3D coordinates of an object surface

The system (10) has a referencing arrangement (30) producing referencing information. An evaluation unit (34) determines three-dimensional (3D) coordinates of measurement points in an outer object coordinate system on the basis of inner measurement point coordinates and the referencing information, so that the point coordinates are in the form of 3D coordinates in the coordinate system. A scanning apparatus (21) is provided in an unmanned controllable, automotive aircraft (20) that is designed such that the aircraft is oriented and moved in a hovering manner. Independent claims are also included for the following: (1) a method for determining 3D coordinates of measurement points on an object surface of an industrial product in an outer object coordinate system (2) an automobile, unmanned, controllable aircraft (3) a computer program product having a set of instructions for performing a method for determining 3D coordinates of measurement points on an object surface of an industrial product in an outer object coordinate system.