|
Lipkowski's Helicopter
1905
|
Jozef Lipkowski, a Polish engineer and inventor working in France and Russia, designed a huge ...
read more ... |
| Igor Sikorsky's first attempt at building a helicopter. The airframe was a wire-braced woodencage, enclosing ... read more ... |
Sikorsky S-1
1909
|
|
|
Sikorsky S-2
1910
|
Built and tested in February to May 1910, Sikorsky's second helicopter was more sophisticatedthan the ...
read more ... |
| Twin-rotor helicopter with tractor propeller. All rotors powered by single 50hp Argus engine. Construction started ... read more ... |
Sorokin helicopter
1909
|
|
|
Tatarinov "Aeromobile"
1909
|
In the very year that Sikorsky was working on his first helicopter, Tatarinov started to ...
read more ... |
| In 1907 military engineer K.A.Antonov applied for, and in 1912 obtained a patent for his ... read more ... |
Antonov "Helicoplane"
1910
|
|
| In 1911 B.N.Yuriev (then student) completed development of theoretical concept of the helicopter with single ... read more ... |
Yuriev helicopter
1912
|
|
| 
