April 28, 2011
I sorta got into "flying" robots recently and I have found answers concerning most of my questions, but there is a particular thing I don't understand about helicopters; how do the coaxial system work (I mean, how can I make one from scratch). I understand that each rotor cancels the other's torque, but how does all this mechanicaly work? Are the rotors dependant on each other for speed (I suppose that's not true because the heli turns probably by increasing torque generated by one rotor and decreasing torque on the other). The coaxial rotor design is my favorite heli design because it's compact and more reliable than having a tail rotor.
PS- What is the third rotor (stabilising rotor???) for? How does this one work?