History
Rogallo had been interested in the flexible wing since 1945. He and his wife built and flew kites as a hobby and, since they could not find official backing for the wing (including at Rogallo's employer NACA), carried out experiments in their own time. By the end of 1948 they had two working designs using a flexible wing - a kite (which they called "Flexi-Kite") and a gliding parachute (which they later referred to as a "paraglider"). Rogallo and his wife received a patent on a "V-shaped" flexible wing in March 1951. Selling the Flexi-kite as a toy helped to finance their work and publicize the design.
Read more about this topic: Rogallo Wing
Famous quotes containing the word history:
“The history of all Magazines shows plainly that those which have attained celebrity were indebted for it to articles similar in natureto Berenice—although, I grant you, far superior in style and execution. I say similar in nature. You ask me in what does this nature consist? In the ludicrous heightened into the grotesque: the fearful coloured into the horrible: the witty exaggerated into the burlesque: the singular wrought out into the strange and mystical.”
—Edgar Allan Poe (1809–1849)
“There is no history of how bad became better.”
—Henry David Thoreau (1817–1862)
“The history of reform is always identical; it is the comparison of the idea with the fact. Our modes of living are not agreeable to our imagination. We suspect they are unworthy. We arraign our daily employments.”
—Ralph Waldo Emerson (1803–1882)