Somewhat related, there are a few airplanes with one-bladed propellors, for example:
http://www.alisport.com/eu/eng/silent2_targa1.htm
In this example, it's used purely because of compactness when stowed.
http://www.alisport.com/eu/eng/silent2_targa1.htm
In this example, it's used purely because of compactness when stowed.
I always found the one blade designs most fascinating and vividly remember a video of the three one blade rotors of the Monopteros 50. Each blade was 56 m long. There was also GROWIAN, a two blade design with 100 m diameter on a 100 m tower.
All of these projects were abandoned and the towers demolished. The three blade design has won for the reasons you stated.
I searched hard for the Monopteros video but there isn't even a good picture which shows all three towers. By-catch: Wikipedia page about unconventional wind turbines [1]
[1] https://en.wikipedia.org/wiki/Unconventional_wind_turbines