Originally Posted by
B737C525
Perhaps someone will harvest some useful learning, whether about buoyancy, flight test, risk management, business, or listening more intently to history lessons...
Good luck with that. People are still trying to invent flying cars despite a half century or so of it having been demonstrated that:
Yes, it is technologically possible.
No, it doesn't make a very good airplane.
No, it doesn't make a very good car.
No, there's not much practical application.
No, it's not a commercially viable device.