Gyroscopic Effect during Pitching When the ship turns left, the angular momentum vector changes from oa to ob. Assume w to be the angular velocity of the rotor in the clockwise direction when viewed from stern (rear end). 17.7 Let the plane of spin of the rotor and other rotating masses be horizontal and across the breadth of the ship. (g) Rolling is limited angular motion of the ship about the longitudinal axis. (f) Pitching is limited angular motion of the ship about the transverse axis. (e) Steering is turning on the side when viewing from the top. (d) Port is the left-hand side when looking from the stern. (c) Starboard is the right-hand side when looking from the stern. Gyroscope 1 17.4 GYROSCOPIC EFFECT ON NAVAL SHIPS Some of the terms used in connection with the motion of naval ships or sea- vessels are given below : (a) Bow is the fore or the front end.
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