If you've ever felt like blowing your top, here's just the machine for it. Frenchman Georges Sablier demonstrates his portable helicopter, winner of a special award at the international helicopter competition and show in Saint Etienne Wednesday. The flying windmill, which weighs about 60 pounds, is strapped over the shoulders. It has a six h.p. engine and can fly for ten hours at a top speed of 30 miles an hour, according to the intrepid Sablier. September 25, 1954. (Photo by AP Wirephoto).