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M Farlane ShipDesign
= Passenger Ships & Commercial Yachts =
INCLINATION TESTS &
Increasingly we notice flag states paying more attention to the SOLAS requirement for a lightship survey every 5 years. The tolerance for variation in lightship is small; should a vessel fail its lighthip survey, an inclination test is required.
In performing a light ship survey, we advise the crew on how to best prepare the vessel & meticulously survey the vessel in order to correctly estimate the weight of items which may be deducted (dead weight) combined with a survey of the vessel's draft. This allows us to accurately determine the lightship weight.
This are one of the ironic real-life tests of naval architecture; a process where we test the ship's stability measurement of the heeling response of the ship to the adddition of weight and the movement of wieght from one side to the other.
By calculation of the heel response to a given heeling movement, we are able to calculate the position of the ship's center of gravity.
Upon the lightship & position of center of gravity of a vessel is where all the stability information of a vessel. Any changes in either will affect a ship's stability, and possibly endanger the vessel.