It would have also have been filled with buoyant gas such as preferably helium or hydrogen, but possibly heated gases, making it a truly hybrid craft.
Following the apparent success of this project, Aereon's board voted unanimously to proceed with the Dynairship for civilian and commercial purposes.
[citation needed] Three proposed versions of the Dynairship were put forward:[3] Original propulsion was stated in the patent to be four externally mounted propellers on the top of the body, with engine nacelles.
According to Aereon, the Department of Defense told Miller in 2003, "You were 30 years ahead of your time"!
[5] When it turned out that building the Dynairship under Aereon at that time was financially impossible, Miller went on to design very similar craft for research in the military field.