Twin-rotor helicopter with tractor propeller. All rotors powered by single 50hp Argus engine. Construction started in 1909 (St.Petersburg), aircraft was re-designed several times and never finished.
Russian Aviation Museum
|predictii fotbal, e-mail, 17.11.2010||reply|
Case de pariuri recomandate partyBets pariloto
|alagurti, e-mail, 02.01.2011||reply|
i di baganachchindi
Do you have any comments ?
Virtual Aircraft Museum
All the World's Rotorcraft