4 bladed gyro-copter

[Tom B.]

As I understand it, one of the primary reason for autogyro crashes is the main blade impacts the tail (or something else) if it becomes unloaded. Would there be a benefit if a 4-bladed main rotor were used (each blade therefore being shorter and stiffer)? What are the considerations for doing this aside from costs?

 

[pie_row]

 

[joe nelson]

 

[Elmog]