Juan de la Cierva was a Spanish aeronautical engineer and pilot. His most famous accomplishment was the invention of the autogyro in 1923. The autogyro is a highly maneuverable aircraft with an unpowered rotor. It was a predecessor to the modern helicopter.
All Wikipedia text
is available under the
terms of the GNU Free Documentation License
Search Encyclopedia
Search over one million articles, find something about almost anything!
... km². Of the total population of 26450, 13112 are male, and 13338 are female. The population density of the community is 18 inhabitants per km².
Externa ...