CRASH-RESISTANT HELICOPTER 



A strong, slightly heavier than air helicopter or like vehicle having: hinged, resilient lifting-propeller blades comprising gas-inflated tubes; a substantially rigid cabin comprising gas-containing tubes and a strong skin means; a landing cushion of easily deformable material which maintains its outer shape in flight; a steering propeller supported in a doughnut-shaped tube that is housed in a strong, streamlined skin; and balloon means at the top of the craft for lightening its weight and stabilizing it against pitching and rolling. The cabin's main, load-carrying part is cylindrical, or optionally oblong or barrel-shaped; and optionally its tubular members are in stavelike elements having strong, planar sides that are epoxy-glued together. 

LIGHTWEIGHT, WRECK-RESISTANT CAR 



A vehicle, especially adapted for land travel, having strong, lightweight walls, comprising thin metal, cylindrical or corrugated cans, between skins, and surrounded by foamed plastic. These receptacles are sealed, thin-walled pipes or tubes; or rows of aligned short cans, end-to-end-glued together. The skins may be: metal sheets, epoxy glued or brazed to the cans; or metallic mesh attached to the cans by brazing or glue and/or bolts, coated with stucco. Optionally, each of the rows may comprise a plurality of aligned cans with adjoining end-caps that are strongly glued together, or a single, elongated, preferably corrugated tube. This invention pertains to lightweight and strong vehicles. Although its basic structure may be utilized in water-traversing vehicles, it is preferably incorporated in a wheeled vehicle, adapted for use on the land and also optionally in the air and in amphibious operation. One of its features comprises stabilization against roll of a two-wheeled or three-wheeled vehicle by providing balloon-lift approximately above its center of gravity.