A large helicopter uses two tandem rotors rotating in opposite directions, as shown in
Chapter 0, Problem DP7.2(choose chapter or problem)
A large helicopter uses two tandem rotors rotating in opposite directions, as shown in Figure P7.33(a). The controller adjusts the tilt angle of the main rotor and thus the forward motion as shown in Figure DP7.2.The helicopter dynamics are represented by G(s) H) i'2 + 4.5s + 9'
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