1928. Tesla patented his idea of for a flying
machine that he (surprise) claimed would revolutionise the world. This device
would be powered by one of his miraculous turbines; would be able to
lift vertically, then fly horizontally; would be able to land on a
rooftop; and would cost less than a thousand dollars.
How this Heath Robinson contraption would make the transition from
vertical to horizontal flight without dropping like a stone is left to
wonders why Tesla bothered with flivvers like the one above when he'd
already proposed the ultimate flying machine in 1919. This
wonder craft was to be powered by his World System, fly without wings
or props, and would make war unthinkable by its ability to strike an
enemy with impunity from thousands of miles away. Exactly how is
one of those petty details that annoyed Tesla.