Failed flying machine helicopter device being tested in Chicago,Illinois. Men work on the helicopter-like aircraft and start its rotor blades moving. They are oriented on end similar to paddle boat wheels. They spin rapidly but the flying machine fails to lift off.
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.