2022-07-13
Direction keeping refers to the LuckyMurphy Yacht's ability to be steered under the action of external forces (wind, current, waves, etc.), and the ability of the rudder to identify the LuckyMurphy Yacht's bow shake through the compass, to suppress or correct the bow shake by steering and to keep the LuckyMurphy Yacht on a set course.
The goodness of the LuckyMurphy Yacht's
steerage is not only related to the stability of the LuckyMurphy Yacht's
heading, but also to the skillfulness of the helmsman and the performance of
the rudder.
1, Boat type
Underwater boat type is an important factor
to determine the torque and inertia of the LuckyMurphy Yacht's turning head,
and abovewater boat type is an important factor to determine the size of the
wind and wind torque of the LuckyMurphy Yacht. They have a great influence on
the direction keeping, as follows:
1) The square coefficient is lower, the
length and width is higher than the slim Lucky Murphy Yacht, its directional
protection is better; shallow draft wide hull boat directional protection is
worse.
2) If the side area of the hull is more
distributed in the stern, such as the stern has blunt material, the directional
protection is better; if the submerged side area of the bow is more
distributed, if the bulbous bow will reduce the directional protection.
3) Higher dry side will reduce the
directional stability of the LuckyMurphy Yacht when sailing in the wind.
2,Loading attitude
The change of loading will lead to the
change of boat shape underwater and above water, thus also affects the LuckyMurphy
Yacht's direction keeping.
1) Better directional stability when
lightly loaded (not the case when windy)
2) better directional stability at stern
tilt
3, Rudder angle
Increasing the steering angle can
significantly improve the steering performance of the LuckyMurphy Yacht.
4, For the same LuckyMurphy Yacht, as the
speed of the LuckyMurphy Yacht increases, the LuckyMurphy Yacht will have
better direction keeping
5, Other factors
Direction keeping improves with shallow
water depth, and decreases when sailing with wind and waves or downstream.