Unmanned flight systems with cameras or in some cases with laser scanners as recording sensors changed the surveying discipline in the last years increasingly. The spectrum of tasks could not only be extended using such systems, but many projects could also be processed economically and flexibly. In this contribution evaluations and results of aerial flight data of unmanned flight systems are presented on the basis of four different project examples, in order to demonstrate the application potential of these systems. Both the today available software packages and the general workflow of a UAV photo flight are presented from flight planning to the visualization of the results. The automation degree during data evaluation and the different derived products are presented based on the project examples.