Testing of an early helicopter-ornithopter invention in Chicago with five rotating wheels like those of a paddle boat.
Chicago Illinois USA Date:1925 Duration:1 min 16 sec Sound:NO SOUND
Test of an early helicopter ornithopter aircraft design in Chicago. A helicopter with five rotating blades that turn sideways in a fashion like a paddle boat. Engineer trying to fly a helicopter and is examining the controls from the tail of helicopter. It never leaves the ground.
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