Collapsible Airplane Wings Are Made of Rubber Tubing (Feb, 1931)
Collapsible Airplane Wings Are Made of Rubber Tubing
AIRPLANE wings that may be folded up, when the ship is stowed away in the garage for the night, and pumped up again in the morning with a tire pump, are the invention of three Washington men. Three large rubber tubes, covered with fabric, form each wing. At present they have been developed for glider use only, reducing weight.