A radio-controlled Superman plane is flown by designer Otto Dieffenbach during a test flight in San Diego, California June 27, 2013. Otto and business partner Ed Hanley are a small start-up company that creates flying radio-controlled planes, designed in the form of people, characters and objects, for commercial and promotional uses. [Photo/Agencies]

A radio-controlled Superman plane lies on the pavement as designer Otto Dieffenbach unloads his flying figures at a test location in San Diego, California June 27, 2013. [Photo/Agencies]