Successfully tested in 1947, the Airphibian was the first roadable aircraft to be certified by the Civil Aeronautics Administration. In flight, it looked like a small airplane. For road use, its entire aft section, including the tail and wings, was detached and rested on its own small wheels. The propeller was also removed. The Airphibian was quite airworthy, and on a dare from Life magazine, inventor Robert Fulton once used it to travel from his home in Connecticut to Manhattan to attend a Broadway show. Fulton blamed government regulations for making it unmarketable.
Source: Internet
