'Juan de la Cierva invented <a href="http://www.j-archive.com/media/2011-09-28_J_16.jpg" target="_blank">this</a> rotary-wing aircraft that taxied for takeoff & was replaced by the helicopter'
the autogiro
INVENTORS & INVENTIONS: Juan de la Cierva invented this rotary-wing aircraft that taxied for takeoff & was replaced by the helicopter
Juan de la Cierva invented this rotary-wing aircraft that taxied for takeoff & was replaced by the helicopter
Juan de la Cierva invented this rotary-wing aircraft that taxied for takeoff & was replaced by the helicopter
INVENTORS & INVENTIONS
the autogiro
INVENTORS & INVENTIONS