 |
1480 |
This inventor from Italy has the idea for a flying machine
called the "Helical Air Screw." This spiral-shaped screw would spin as it
floated through the air. It was never built. It is one of the first drawings
of a helicopter-like flying machine. |
|
1784 |
| These two researchers from France invent a toy with a rotary-wing. This toy could take off and fly using its own power. This proves that an object which is heavier than air could fly. |
|
1863 |
This writer from France is one of the first to use the
word "helicopter." This big word comes from two smaller words. The small word
"helico" means spiral. The other small word "pter" comes from the word "pteron"
which means feathers or wings. These two words put together mean a "spiral
with wings." |
|
1907 |
This inventor from France makes an aircraft that is the
first to take off vertically (fly straight up into the sky) with a pilot.
It is too hard to control. |
|
1911 |
This scientist from Russia writes a book that talks about
flight. It has pictures that show a flying machine that looks like a helicopter.
This helicopter has a big main rotor with a small rotor on the tail boom. |
|
1916 |
This scientist from Russia writes a book called "Helicopter
Rotors Theory." The book shows how rotors work. Later on he moves to the
United States and builds a helicopter. |
