After last nights post about Stephane Roussons Zeppy Airship I had a thought stuck in my head for a long time and I just have to write about it. This is not a news item just a quick thought and a request for feedback. Especially if something similar has been tried before.
So what am I talking about I am talking about an aircraft that unites three different characteristics into one new design that is extremely fuel efficient. The aircraft that I have in my mind unites the features of a kite a glider and an airship.
The airship allows the aircraft to be big but at the same time light, it flies(hovers) without needing any propulsion. The kite can lift up with almost no effort with the wind and can act as a strong sail pulling the aircraft with the wind. The glider can glide downwards over a long distance even into the wind.
Is it possible to build something like that? Can a non propelled aircraft even fly against the wind and achieve any real ground speed or is propulsion needed?