[Thanks Jimmy]I'd like one of these.
One engine, two purposes. It's brilliant engineering, so simple. If it has no major drawbacks, this could really be useful. Think of crossing a big wild country, how often you might want to be able to fly over major obstacles. And how little space it takes to take off or land (less than a football field.)
Not only that, it drives really well too (see near the end).
I'm glad he has ambitions for it, I think this thing could be really useful for so many things.