Question

When the rotor rotates in the anticlockwise direction and is viewed from the stern while the ship is steering to the left, then the effect of the reactive gyroscopic couple will be:

• A. To lower the bow and lower the stern
• B. To raise the bow and lower the stern
• C. To raise the bow and raise the stern
• D. To lower the bow and raise the stern

Hint:

- Use gyroscopic reaction formula: \( C = I \omega \omega_p \). - Identify rotor direction and ship’s movement before predicting the effect.

Answer 1

The Correct Option is B

- Gyroscopic effect acts perpendicular to the plane of rotation. - For an anticlockwise rotor viewed from the stern, and the ship turning left, the reactive couple acts to raise the bow and lower the stern.