green granite, the airship has already been invented, whereas the Wrights were the first to be successful with heavier-than-air flying machines. So your comment is rather irrelevant.
Oh dear
BEagle stop being deliberately obtuse, despite the first aircraft being flown in 1903 the war office, apart from a flirtation with Cody in 1908/9, resisted all the snake-oil salesmen as you call them until 1911 when they formed the first 'heavier than air' squadron hence my comment was perfectly relevant to the current situation with the Hybrid Air Vehicles. The only real proof of a concept is to build it and see it it can perform to the specifications promised, if it can then it's money well spent if it can't then at least the knowledge gained will prove useful in the future. If you don't then you'll never know.