Navigating unmanned aircraft using pitch

Methods and systems for navigating unmanned aircraft to capture images a consistent distance from a surface of a structure, such as a roof, are disclosed, including a system comprising a computer system having one or more processors and one or more non- transitory computer readable medium, the processor(s) executing instructions to cause the one or more processors to: generate unmanned aircraft information including flight path information for capturing images of a roof section having a plane, the flight path information configured to direct an unmanned aircraft to fly a flight path based at least in part on a pitch of the roof section and information from one or more sensor indicative of a location of the roof section, the flight path configured to include waypoints at which the unmanned aircraft captures images at a consistent distance from the plane of the roof section.