This is the story of how a small, but full-blown aviation company couldn’t design something that some “amateurs” do almost blindfolded.
The Autogyro is one of the few, very few significant Spanish aviation technology contributions. With that in mind, no doubt, Aeronáutica Industrial S.A (AISA) conceived in the late 1960s/early 1970s their GN four-seat civilian autogiro (in Spanish, of course). A decade had to pass before the GN made its one and only flight in 1982….it crashed. Soon after the project was cancelled.
Golden!!, there wasn’t another colour….I know, we spaniards are our worst enemy.