The gyro rotor is spinning at the constant rate p 100 rev min relative to the x y z axes in the direction indicated If the angle between the gimbal ring and horizontal X Y plane is made to increase at the rate of 4 rad sec and if the unit is forced to precess about the vertical at the constant rate...

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The gyro rotor is spinning at the constant rate p = 100 rev/min relative to the x-y-z

Question:

The gyro rotor is spinning at the constant rate p = 100 rev/min relative to the x-y-z axes in the direction indicated. If the angle γ between the gimbal ring and horizontal X-Y plane is made to increase at the rate of 4 rad /sec and if the unit is forced to precess about the vertical at the constant rate N = 20 rev/min, calculate the angular momentum HO of the rotor when γ = 30°. The axial and transverse moments of inertia are I_zz = 5(10⁻³) lb-ft-sec² and I_xx = I_yy = 2.5(10−3) lb-ft-sec².