Defining the fore and aft location of the hull unit
The hull unit should preferably be located within 1/3 to 1/10 of the vessel’s Length Between Perpendiculars (LBP) from its Forward Perpendicular (FP).
Deviations should not be made without consulting Simrad.
Image
A Water level at normal trim
B Welding marks to indicate hull unit location when docking
C Length Between Perpendiculars (LBP)
D 1/3 to 1/10 of the Length Between Perpendiculars (LBP)