Googling David Deptula and Mav6 would tell you more about where we have come from with USAF airships. I always liked this graphic because it shows the data fusion capability that they want to achieve with Air Force airships: http://www.uasvision.com/2011/04/11/us-air-force-funds-86m-blue-devil-2-demonstration-airship/ It is always about capabilities and not products IMO. Safe travels, IJO