Popular Science online has a retrospective about the decades of the "flying car" dream in its several variations. The tag is that DOD's DARPA has solicited design bids for what essentially sounds like a flying HUMVEE.
The site posts an artistic memory lane of such proposals, including the amazing flying tank:
The accompanying text reads,
Flying Tanks: July 1932Well, no they were not forgotten. In fact, militaries around the world have been using flying tanks for a few decades now. The main one used by the Soviet Army looked like this:
In response to the horrors of trench warfare, inventors raced to develop flying tanks that could land on the battlefield and be ready for immediate combat. American engineer Walter J. Christie envisioned a four-ton armored vehicle equipped with a 1,000-horsepower motor, a propeller, and detachable wings. Each tank would be commanded by two men. Upon landing, the driver would pull a single lever, releasing the wings, and advance into battle. Meanwhile, the Soviet Air Force designed their own winged tanks, like the Antonov A-40, which was essentially a T-60 light tank with large biplane wings and a twin tail attached. Despite the efforts of engineers, flying tanks never really caught on, so further efforts were scrapped and largely forgotten.