CPAM_121222_320
Existing comment:
Berliner Helicopter - 1924:
After several years of experimenting with vertical flight, Emile and his son, Henry Berliner, made the first controlled helicopter flight with this unique looking aircraft.
Looking very little like the helicopter of today, this machine with a Nieuport fuselage and triplane wings, was able to maneuver in a radius of 150 feet while maintaining a speed of about 40 mph. Thought unable to perfect a safe and smooth landing, the Berliner helicopter had done much to pave the way for future accomplishments in the field of vertical flight.
Proposed user comment: