X-Plane 10.20+ Douglas DWC Float Version. The Douglas World Cruiser was a variant of the DT2 torpedo bomber. It was developed to attempt the first round the world flight by the United Army Air Service. The airplane called "Chicago" was the second of five aircraft build for that purpose. It is presented here as the floatplane version, wheels being fitted for flights over land. Credits goes to Bernard Augras for using his pilots. By Philippe Gastebois.